Metal powder injection molding system with vibration screening structure

Abstract

The invention provides a metal powder injection molding system with a vibration screening structure. The metal powder injection molding system with the vibration screening structure comprises a support used for providing support, a conveying device located on the support and comprising a conveying assembly and a lifting assembly, and a screening device fixed to the support and comprising a conveying device and a screening assembly. According to the metal powder injection molding system with the vibration screening structure, through the innovative screening structure, the multiple functions of cavity, roller vibration, driving plate beating and the like are combined, the efficient, stable and environment-friendly metal powder injection molding system is formed, particles are effectively prevented from flying out in the screening process through the design of the cavity, and the screening quality is improved. Complete recovery of powder is guaranteed, waste is avoided, the design ensures that materials cannot leak out in the screening process by limiting the motion range of the powder and particles, and therefore environmental pollution and dust accumulation in the production process are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of metal powder injection molding, in particular to a metal powder injection molding system with a vibration screening structure. Background Art

[0002] The metal powder injection molding system with a vibration screening structure is mainly composed of a metal powder injection molding machine, a vibration screening device, a powder conveying system and a temperature control system. The metal powder injection molding machine is responsible for mixing metal powder with a binder and forming parts by injection molding. The vibration screening device screens the metal powder through a vibration mechanism to remove large particles or agglomerates to ensure that the powder has a uniform particle size. The powder conveying system is used to stably transfer the screened powder to the injection molding machine, while the temperature control system ensures the suitability of the temperature during the molding process to ensure sufficient mixing of the powder and the binder and the molding quality. Through this screening and injection molding process, high-quality metal parts can be molded.

[0003] Although this system can improve molding accuracy and product quality, it also has some obvious drawbacks. The vibration screening process may cause powder loss, especially for fine powders, this loss is more significant. The screening efficiency is limited, some powders with too large particles may not be completely screened out, and the mesh may be blocked, thus affecting the quality of injection molding. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a metal powder injection molding system with a vibration screening structure, which solves the problem that the vibration screening process may cause powder loss; powder with too large particle size may not be completely screened out and may clog the mesh.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A metal powder injection molding system with a vibration screening structure, comprising:

[0006] A bracket, which is used to provide support;

[0007] A conveying device, which is located on the bracket, and includes a conveying component and a lifting component;

[0008] The screening device is fixed on the bracket, and the screening device comprises a transmission device and a screening component.

[0009] Preferably: the conveying assembly includes a conveyor belt assembly, a first motor, a part blank, a support table, a rotating disk, a lateral support ring and a support plate, the conveyor belt assembly is arranged on the support plate, the first motor is arranged on the conveyor belt assembly, and the support table is arranged on the support plate.

[0010] Preferably: the lateral support ring is fixed on the support platform, a fourth motor is fixed on the lower side of the support plate, an output end of the fourth motor is fixed to a rotating disk, a groove is provided on the side surface of the rotating disk, and the part blank is moved into the groove through a conveyor belt assembly.

[0011] Preferably: the lifting assembly includes a support frame, a limit plate, a telescopic rod, a support plate, a conduit and a connecting ring, the support frame is fixed to the limit plate, the support plate and the support frame are both fixed to the support plate, the output end of the support plate is fixed to the telescopic rod, the conduit is slidably connected to the limit plate, and the upper end of the conduit is fixed to the connecting ring.

[0012] Preferably: the screening assembly includes a loading and unloading mechanism, a separation mechanism and a driving mechanism, the driving mechanism includes a second motor, a rotating shaft, and a driving plate, the loading and unloading mechanism includes a feed pipe, a rotating plate, a side opening and an electromagnet, the separation mechanism includes a cavity, a box plate, a roller, a gasket, micropores and a friction strip, the feed pipe is located on the side surface of the box plate, the rotating plate is rotatably connected to the box plate, the electromagnet is magnetically connected to the box plate, and the side opening is located on the box plate and corresponds to the position of the electromagnet.

[0013] Preferably: the output end of the second motor is fixedly connected to the rotating shaft, the side surface of the rotating shaft is fixed to the driving plate, the gasket is rotatably connected to the box plate, the box plate and the roller form a cavity, the micropores are located on the roller, the gaskets are respectively located at both ends of the roller and are used for sealing, the two symmetrically distributed friction strips are located inside the roller and rub against the driving plate to drive the rotation of the roller to provide power, the cross-section of the roller is elliptical and the axis of the friction strip is the major axis, which is used to provide vibration.

[0014] Preferably: the transmission device includes a feed port, a third motor and an auger, the third motor is fixed to the bracket, the output end of the third motor is fixed to the auger, the lower side of the auger is in contact with the connecting ring, the upper side of the auger is provided with an opening and connected to the cavity, and the feed port is located on the auger.

[0015] Preferably: a cover plate is provided on the upper side of the box plate.

[0016] The present invention provides a metal powder injection molding system with a vibration screening structure. It has the following beneficial effects:

[0017] The metal powder injection molding system with a vibrating screening structure combines multiple functions such as cavity, drum vibration, and driving plate beating through an innovative screening structure to form an efficient, stable and environmentally friendly metal powder injection molding system. The cavity design effectively prevents the flying of particles during the screening process, ensuring the complete recovery of powder and avoiding waste. This design limits the range of motion of powder and particles to ensure that materials will not leak out during the screening process, thereby reducing environmental pollution and dust accumulation during the production process.

[0018] At the same time, the drum adopts an elliptical cross-section and built-in friction strips, which generate vibrations when rotating, ensuring smooth passage of powder during screening and preventing problems such as screen blockage or particle accumulation. The vibration design of the drum not only improves screening efficiency, but also avoids blockage caused by excessive powder accumulation during screening, further improving the continuous working ability and reliability of the equipment.

[0019] In addition, the innovative design of the drive plate not only drives the drum to rotate and generate the necessary vibration for screening, but also has the function of beating the raw materials. In actual work, the agglomerated powder is effectively broken by the beating of the drive plate, which reduces powder waste and further improves the screening effect. The realization of this beating function not only solves the agglomeration problem, but also avoids the dust dispersion phenomenon common in traditional equipment. By precisely controlling the intensity of the beating, the dust will not be scattered at will, ensuring the cleanliness of the working environment and the safety of operation.

[0020] In summary, this technical solution forms a tightly coordinated working system by comprehensively considering functions such as vibration screening, material transmission, and beating to remove lumps. It not only effectively solves the problems of powder loss, blockage and agglomeration, but also optimizes the production environment by reducing the dispersion of dust, improves the operating efficiency and sustainability of the overall equipment, and optimizes the metal powder injection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a partial structural schematic diagram of the present invention;

[0023] Figure 3 It is a schematic diagram of the lifting assembly of the present invention;

[0024] Figure 4 For the present invention Figure 1 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 5 It is a schematic diagram of the structure of the vibrating screening assembly of the present invention;

[0026] Figure 6This is a schematic diagram of the internal structure of the vibration screening assembly of the present invention;

[0027] Figure 7 It is an exploded view of the vibrating screening assembly of the present invention.

[0028] Among them, 1. bracket; 2. conveying device; 3. conveyor belt assembly; 4. first motor; 5. part blank; 6. support table; 7. rotating disk; 8. lateral support ring; 9. support plate; 10. lifting assembly; 11. support frame; 12. limit plate; 13. telescopic rod; 14. support plate; 15. conduit; 16. connecting ring; 17. transmission device; 18. auger; 19. screening device; 20. cover plate; 21. second motor; 22. cavity; 23. box plate; 24. feed pipe; 25. rotating plate; 26. roller; 27. gasket; 28. micropore; 29. ​​friction strip; 30. electromagnet; 31. drive plate; 32. rotating shaft; 33. lateral opening; 34. discharge port; 35. third motor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1:

[0031] like Figure 1-7 As shown, an embodiment of the present invention provides a metal powder injection molding system with a vibration screening structure, including a bracket 1, which is used to provide support;

[0032] A conveying device 2 is located on the bracket 1. The conveying device 2 includes a conveying component and a lifting component 10. The conveying component includes a conveyor belt component 3, a first motor 4, a part blank 5, a support platform 6, a rotating disk 7, a lateral support ring 8 and a support plate 9. The conveyor belt component 3 is arranged on the support plate 9, the first motor 4 is arranged on the conveyor belt component 3, the support platform 6 is arranged on the support plate 9, and the lateral support ring 8 is fixed on the support platform 6. A fourth motor is fixed to the lower side of the support plate 9, and the output end of the fourth motor is fixed to the rotating disk 7. A groove is arranged on the side surface of the rotating disk 7. The part blank 5 is moved into the groove through the conveyor belt component 3. The lifting component 10 includes a support frame 11, a limit plate 12, a telescopic rod 13, a support plate 14, a conduit 15 and a connecting ring 16. The support frame 11 is fixed to the limit plate 12, and the support plate 14 and the support frame 11 are both fixed to the support plate 9. The output end of the support plate 14 is fixed to the telescopic rod 13, the conduit 15 is slidably connected to the limit plate 12, and the upper end of the conduit 15 is fixed to the connecting ring 16;

[0033] The screening device 19 is fixed on the support 1 , and the screening device 19 includes a transmission device 17 and a screening assembly.

[0034] Embodiment 1 realizes the stability and efficiency of the metal powder injection molding system through the precisely designed conveying device 2 and lifting assembly 10. The cooperation between the conveyor belt assembly 3 and the first motor 4 in the conveying device 2 ensures the smooth and accurate transportation of the powder and the part blank 5 in the whole process, reducing the loss and waste of the powder. The groove design of the rotating disk 7 can effectively guide the part blank 5 into the screening device 19, providing a more stable feeding guarantee for the screening process. The lifting assembly 10 provides a flexible adjustment space through the cooperation of the telescopic rod 13 and the support frame 11, and can be adjusted according to different work requirements to meet the processing requirements of different powders. In this embodiment, the screening device 19 ensures the stability and efficiency of the screening process through the cooperation of the carefully designed transmission device 17 and the screening assembly. The design of the screening assembly enables the system to avoid blockage and powder accumulation problems while screening efficiently, ensuring the stability of long-term operation.

[0035] Embodiment 2:

[0036] like Figure 1-7 As shown, an embodiment of the present invention provides a metal powder injection molding system with a vibration screening structure, including a bracket 1, which is used to provide support;

[0037] The conveying device 2 is located on the support 1, and the conveying device 2 includes a conveying component and a lifting component 10;

[0038] The screening device 19 is fixed on the bracket 1. The screening device 19 includes a transmission device 17 and a screening component. The screening component includes a loading and unloading mechanism, a separation mechanism and a driving mechanism. The driving mechanism includes a second motor 21, a rotating shaft 32, and a driving plate 31. The loading and unloading mechanism includes a feeding pipe 24, a rotating plate 25, a lateral opening 33 and an electromagnet 30. The separation mechanism includes a cavity 22, a box plate 23, a roller 26, a gasket 27, a micropore 28 and a friction strip 29. The feeding pipe 24 is located on the side surface of the box plate 23, the rotating plate 25 is rotatably connected to the box plate 23, the electromagnet 30 is magnetically connected to the box plate 23, the lateral opening 33 is located on the box plate 23 and corresponds to the position of the electromagnet 30, the output end of the second motor 21 is fixedly connected to the rotating shaft 32, the side surface of the rotating shaft 32 is fixed to the driving plate 31, the gasket 27 is rotatably connected to the box plate 23, and the box The plate 23 and the roller 26 form a cavity 22, the micropores 28 are located on the roller 26, the gaskets 27 are respectively located at both ends of the roller 26 and are used for sealing, two symmetrically distributed friction strips 29 are located inside the roller 26 and rub against the driving plate 31 to drive the rotation of the roller 26 to provide power, the cross-section of the roller 26 is elliptical and the axis of the friction strip 29 is the major axis, which is used to provide vibration, the transmission device 17 includes a feed port 34, a third motor 35 and an auger 18, the third motor 35 is fixed to the bracket 1, the output end of the third motor 35 is fixed to the auger 18, the lower side of the auger 18 is in contact with the connecting ring 16, the upper side of the auger 18 is provided with an opening and is connected to the cavity 22, the feed port 34 is located on the auger 18, the upper side of the box plate 23 is provided with a cover plate 20, and the material of the friction strip 29 is selected from ceramic materials with higher wear resistance and medium friction coefficient.

[0039] Embodiment 2 is further optimized on the basis of embodiment 1, especially in the design of the screening and powder transmission parts. The elliptical cross-section of the drum 26 and the built-in friction strip 29 not only provide the necessary vibration to prevent the clogging of the powder during the screening process, but also through the friction between the friction strip 29 and the drive plate 31, the rotation of the drum 26 can be carried out smoothly, thereby improving the screening efficiency. This design reduces energy loss while ensuring the long-term stable operation of the equipment. The auger 18 in the transmission device 17 is driven by the third motor 35 to form a good material transmission channel with the cavity 22, thereby ensuring the smooth flow of powder in the system. The synergistic effect of the feed pipe 24 and the electromagnet 30 enables the powder to be evenly injected into the part blank 5, thereby avoiding the concentrated accumulation or loss of materials and improving the efficiency and accuracy of the entire system.

[0040] Working principle: The conveyor 2 of the system conveys the part blank 5 from the input end to the next processing unit through the conveyor belt assembly 3. The conveyor belt is driven by the first motor 4 to ensure that the part blank 5 is stably and continuously transported. Under the action of the conveyor belt, the part blank 5 passes through the system smoothly and is guided to the rotating disk 7. The groove design of the rotating disk 7 allows the part blank 5 to enter the appropriate position to prepare for the subsequent injection process. In order to meet different process requirements, the lifting assembly 10 can adjust the height of the entire part blank 5 through the coordination of the telescopic rod 13 and the support sheet 14. Through the fixation of the limit plate 12 and the sliding of the guide tube 15, the lifting assembly 10 ensures the adaptability of the equipment under different working conditions, especially in the process of processing different batches of powder, by adjusting the height to optimize the powder fluidity and screening effect, when the metal powder is sent to the screening area through the conveyor 2, it enters the screening device 19. The device includes a screening assembly and a transmission device 17. The main task of the screening assembly is to classify and screen the metal powder, and screen out particles that do not meet the particle size requirements. The key to the screening process lies in the vibration of the drum 26. The drum 26 is designed with an elliptical cross section and has a built-in friction strip 29. When the drum 26 rotates, the friction between the friction strip 29 and the drive plate 31 causes the drum 26 to vibrate, thereby promoting the flow of powder particles and avoiding the accumulation or blockage of particles in the screen. In this way, larger particles remain in the drum 26 for beating, and suitable powders pass through the screen smoothly to enter the next processing link. The transmission device 17 effectively transmits the screened powder to the connecting ring 16 through the discharge port 34 through the cooperation of the auger 18 and the third motor 35. The rotation of the auger 18 drives the powder to flow forward. At the same time, through the connection with the cavity 22, it is ensured that the powder can be evenly transmitted without accumulation or blockage. The loading and unloading mechanism guides the powder into the box plate 23 through the feed pipe 24, and cooperates with the electromagnet 30. The electromagnet 30 is turned off to remove the lumps that cannot pass through the inside. The design of the feed pipe 24 allows the material to enter the screening area smoothly, avoiding the problem of powder loss or concentrated accumulation.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal powder injection molding system with a vibration screening structure, characterized in that: include: A support (1) for providing support; A conveying device (2) located on the support (1), wherein the conveying device (2) comprises a conveying component and a lifting component (10); A screening device (19) is fixed on the support (1), and the screening device (19) comprises a transmission device (17) and a screening component.

2. The metal powder injection molding system with a vibration screening structure according to claim 1, characterized in that: The conveying assembly comprises a conveyor belt assembly (3), a first motor (4), a part blank (5), a support platform (6), a rotating disk (7), a lateral support ring (8) and a support plate (9); the conveyor belt assembly (3) is arranged on the support plate (9), the first motor (4) is arranged on the conveyor belt assembly (3), and the support platform (6) is arranged on the support plate (9).

3. The metal powder injection molding system with a vibration screening structure according to claim 2, characterized in that: The lateral support ring (8) is fixed on the support platform (6), a fourth motor is fixed on the lower side of the support plate (9), an output end of the fourth motor is fixed to the rotating disk (7), a side surface of the rotating disk (7) is provided with a groove, and the part blank (5) is moved into the groove through the conveyor belt assembly (3).

4. The metal powder injection molding system with a vibration screening structure according to claim 3, characterized in that: The lifting assembly (10) comprises a support frame (11), a limiting plate (12), a telescopic rod (13), a support plate (14), a conduit (15) and a connecting ring (16); the support frame (11) is fixed to the limiting plate (12); the support plate (14) and the support frame (11) are both fixed to a support plate (9); the output end of the support plate (14) is fixed to the telescopic rod (13); the conduit (15) is slidably connected to the limiting plate (12); and the upper end of the conduit (15) is fixed to the connecting ring (16).

5. The metal powder injection molding system with a vibration screening structure according to claim 1, characterized in that: The screening assembly comprises a loading and unloading mechanism, a separation mechanism and a driving mechanism. The driving mechanism comprises a second motor (21), a rotating shaft (32) and a driving plate (31). The loading and unloading mechanism comprises a feeding pipe (24), a rotating plate (25), a lateral opening (33) and an electromagnet (30). The separation mechanism comprises a cavity (22), a box plate (23), a roller (26), a gasket (27), micropores (28) and a friction strip (29). The feeding pipe (24) is located on the side surface of the box plate (23). The rotating plate (25) is rotatably connected to the box plate (23). The electromagnet (30) is magnetically connected to the box plate (23). The lateral opening (33) is located on the box plate (23) and corresponds to the position of the electromagnet (30).

6. The metal powder injection molding system with a vibration screening structure according to claim 5, characterized in that: The output end of the second motor (21) is fixedly connected to the rotating shaft (32), the side surface of the rotating shaft (32) is fixed to the driving plate (31), the gasket (27) is rotatably connected to the box plate (23), the box plate (23) and the roller (26) form a cavity (22), the micropores (28) are located on the roller (26), the gasket (27) is respectively located at both ends of the roller (26) and is used for sealing, the two symmetrically distributed friction strips (29) are located inside the roller (26) and rub against the driving plate (31) to drive the rotation of the roller (26) to provide power, the cross-section of the roller (26) is elliptical and the axis of the friction strip (29) is the major axis, and is used for providing vibration.

7. The metal powder injection molding system with a vibration screening structure according to claim 6, characterized in that: The transmission device (17) comprises a feed port (34), a third motor (35) and an auger (18); the third motor (35) is fixed to the bracket (1); the output end of the third motor (35) is fixed to the auger (18); the lower side of the auger (18) is in contact with the connecting ring (16); the upper side of the auger (18) is provided with an opening and is connected to the cavity (22); and the feed port (34) is located on the auger (18).

8. The metal powder injection molding system with a vibration screening structure according to claim 5, characterized in that: A cover plate (20) is arranged on the upper side of the box plate (23).

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