An efficient production device of powder for metal additive

Abstract

The application relates to the technical field of metal powder processing, in particular to a high-efficiency production device for metal additive powder, which comprises a machine body, a discharge port is arranged at the bottom of the machine body, a roller is rotatably arranged in the machine body, stirring rods are uniformly distributed on the outer surface of the roller, a plurality of grooves are arranged on the surface of the roller, an arc-shaped baffle is arranged above the roller in the machine body, and an auxiliary cleaning mechanism and a telescopic cleaning mechanism are further arranged in the machine body and used for cleaning the outer surfaces of the stirring rods and the roller. The high-efficiency production device for metal additive powder is provided with the auxiliary cleaning mechanism and the telescopic cleaning mechanism, the elastic scraping plate of the scraping plate is used for realizing dynamic cleaning of the surfaces of the roller and the stirring rods, the elastic compensation of the spring one and the spring two is matched, the cleaning components are tightly attached to the working surface, the adhesion and accumulation of materials caused by high temperature are efficiently removed, and the continuous operation stability of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of metal powder processing technology, specifically to a high-efficiency production device for metal additive manufacturing powders. Background Technology

[0002] Metal additive manufacturing technology, as a core branch of intelligent manufacturing, has been widely used in key fields such as aerospace, medical, and high-end equipment due to its advantages such as near-net-shape forming and integrated manufacturing of complex structures. Metal additive powder, as the core raw material of this technology, directly determines the mechanical properties, dimensional accuracy and service life of the formed parts. Therefore, it puts forward stringent requirements for the efficiency, precision and stability of powder production equipment.

[0003] In the efficient production process of metal additive powder, core processes such as raw material melting, mechanical crushing and grinding generate a large amount of heat, which leads to a significant increase in the internal temperature of the equipment. Although the existing production equipment is equipped with basic cooling structures, the cooling effect is mostly concentrated on the overall equipment, making it difficult to achieve precise and targeted cooling of key operating components such as the roller and the functional bars on the roller. Under high temperature conditions, metal powder is prone to sticking together due to its thermal fusibility, and a large amount of it adheres to the surface of the roller, forming a stubborn accumulation layer. This not only affects the smoothness of the roller's rotation, but also destroys the uniform crushing and screening effect of the powder.

[0004] Meanwhile, as the core component that directly participates in powder crushing and mixing, the roller functional bar has a higher surface temperature and contact frequency with the powder, making the adhesion problem more prominent. This not only reduces the powder production efficiency and finished product quality, but also requires frequent shutdowns for cleaning, making it difficult to meet the needs of large-scale production of high-performance metal additive powders. Therefore, we propose an efficient production device for metal additive powders. Summary of the Invention

[0005] One of the technical problems to be solved in this application is: how to design a high-efficiency production device for metal additive powder that is self-cleaning in high-temperature metal powder processing.

[0006] To solve the above-mentioned technical problems, this application provides an efficient production device for metal additive powder, including a machine body, a discharge port at the bottom of the machine body, a roller rotatably installed inside the machine body, stirring rods evenly distributed on the outer surface of the roller, a plurality of grooves formed on the surface of the roller, an arc-shaped baffle provided inside the machine body corresponding to the roller above, and an auxiliary cleaning mechanism and a telescopic cleaning mechanism provided inside the machine body for cleaning the stirring rods and the outer surface of the roller.

[0007] In some embodiments, the auxiliary cleaning mechanism further includes a fixed rod disposed inside the machine body, a collar sleeved in the middle of the fixed rod, a guide rod disposed outside the collar, a Y-shaped plate fixedly connected to the end of the guide rod away from the collar, and a scraping plate disposed on the side of the Y-shaped plate.

[0008] In some embodiments, a limiting plate is provided at the end of the guide rod, and a spring is provided between the limiting plate and the collar. The spring is disposed on the outside of the guide rod, and the two ends of the spring abut against the limiting plate and the collar, respectively.

[0009] In some embodiments, a connecting ring is sleeved on the outer side of the roller, and an arc-shaped groove is formed on the outer side of the connecting ring. An L-shaped plate is provided on the side of the scraper plate, and a straight rod is fixedly connected to the end of the L-shaped plate. A squeezing ball is provided at the end of the straight rod away from the L-shaped plate, and the outer side of the squeezing ball is movably disposed on the outer side of the connecting ring and the inner side of the arc-shaped groove.

[0010] In some embodiments, the telescopic cleaning mechanism includes a motor disposed on the outside of the machine body, the output end of the motor passing through the outside of the machine body and disposed at the end of the roller, a connecting column connected to a fixed rod is disposed on the inner side of the roller, and a connecting groove is provided on the outer side of the connecting column.

[0011] In some embodiments, a cleaning cylinder is provided on the outer side of the roller, the cleaning cylinder is sleeved on the outer surface of the stirring rod, a connecting rod is provided at the end of the stirring rod, a connecting ball is provided at the end of the connecting rod away from the stirring rod, and the outer surface of the connecting ball is movably disposed on the outer side of the connecting column and the inner side of the connecting groove.

[0012] In some embodiments, a fixed ring connected to the inner side of the roller is sleeved on the outer side of the stirring rod, a movable ring is sleeved on the outer surface of the stirring rod, and a second spring is sleeved on the outer side of the stirring rod, with the two ends of the second spring respectively disposed at the ends of the movable ring and the fixed ring.

[0013] In some embodiments, the surface of the stirring rod is provided with a wear-resistant coating, the grooves are uniformly distributed along the roller axis, and the cross-section of the grooves is arc-shaped.

[0014] In some embodiments, the arc-shaped baffle is clearance-fitted with the outer surface of the roller, the inner side of the arc-shaped baffle is provided with a polytetrafluoroethylene anti-stick layer, and the scraper plate is provided with an elastic scraper on the side near the roller and the stirring rod.

[0015] This invention has at least the following beneficial effects:

[0016] 1. Through the auxiliary cleaning mechanism and telescopic cleaning mechanism, the elastic scraper of the scraper plate is used to achieve dynamic cleaning of the roller and stirring rod surface. With the elastic compensation of spring one and spring two, it is ensured that the cleaning parts are in close contact with the working surface, effectively removing the sticky material caused by high temperature. At the same time, the polytetrafluoroethylene anti-stick layer of the arc baffle reduces the probability of powder adhesion, avoids the accumulation of material from affecting the crushing and screening effect, significantly reduces the frequency of shutdown for cleaning, and improves the stability of continuous operation of the device.

[0017] 2. The wear-resistant coating on the surface of the stirring rod enhances the service life of the components, and the arc-shaped groove on the surface of the roller optimizes the powder crushing path. Combined with the precise de-sticking of the cleaning mechanism, it effectively avoids the impact of sticky powder on product quality. The overall structure of the device is designed through mechanical coordination, which can achieve efficient cleaning and stable operation without complex electrical control components, making it suitable for efficient production work. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the arc-shaped baffle and roller of the present invention;

[0020] Figure 3 This is a schematic cross-sectional view of the roller structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the connecting ring, scraper, and stirring rod of the present invention;

[0022] Figure 5 This is a schematic diagram of the exploded portion structure of the connecting ring, scraper, and extrusion ball of the present invention;

[0023] Figure 6 This is a partial structural diagram of the guide rod, Y-shaped plate, and limiting plate of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the stirring rod, cleaning cylinder, and fixing ring of the present invention.

[0025] In the diagram: 1. Machine body; 2. Discharge port; 3. Stirring rod; 4. Roller; 5. Groove; 6. Arc-shaped baffle; 7. Auxiliary cleaning mechanism; 71. Connecting ring; 72. Arc-shaped groove; 73. Scraper; 74. L-shaped plate; 75. Straight rod; 76. Extrusion ball; 77. Fixed rod; 78. Collar; 79. Guide rod; 710. Y-shaped plate; 711. Limiting plate; 712. Spring 1; 8. Telescopic cleaning mechanism; 81. Motor; 82. Connecting column; 83. Connecting groove; 84. Cleaning cylinder; 85. Fixed ring; 86. Moving ring; 87. Connecting ball; 88. Spring 2; 89. Connecting rod. Detailed Implementation

[0026] 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. Example 1:

[0027] Please see Figure 1-7 The present invention provides a technical solution: a high-efficiency production device for metal additive powder, comprising a machine body 1, a discharge port 2 at the bottom of the machine body 1, a roller 4 rotatably installed inside the machine body 1, stirring rods 3 evenly distributed on the outer surface of the roller 4, a plurality of grooves 5 opened on the surface of the roller 4, an arc-shaped baffle 6 corresponding to the roller 4 above the machine body 1, and an auxiliary cleaning mechanism 7 and a telescopic cleaning mechanism 8 inside the machine body 1 for cleaning the stirring rods 3 and the outer surface of the roller 4;

[0028] An arc-shaped baffle 6 is fixedly installed inside the machine body 1 above the roller 4, forming a matching gap with the roller 4. It is also equipped with an auxiliary cleaning mechanism 7 and a telescopic cleaning mechanism 8. The two work together to achieve all-round cleaning of the stirring rod 3 and the outer surface of the roller 4, avoiding powder adhesion.

[0029] The auxiliary cleaning mechanism 7 also includes a fixed rod 77 located inside the body 1. A collar 78 is sleeved in the middle of the fixed rod 77, and a guide rod 79 is located on the outside of the collar 78. A Y-shaped plate 710 is fixedly connected to the end of the guide rod 79 away from the collar 78. A scraper 73 is located on the side of the Y-shaped plate 710. A collar 78 that can slide along the rod is movably sleeved in the middle of the fixed rod 77. A guide rod 79 is vertically fixed to the outside of the collar 78. A Y-shaped plate 710 is welded to the end of the guide rod 79 away from the collar 78. Scrapers 73 are fixed to both sides of the Y-shaped plate 710 by bolts. The scrapers 73 correspond to the outer surface of the roller 4 and the side of the stirring rod 3, respectively. The multi-directional layout ensures that there are no dead corners in the cleaning and provides a structural basis for subsequent dynamic cleaning.

[0030] A limiting disk 711 is provided at the end of the guide rod 79. A spring 712 is provided between the limiting disk 711 and the collar 78. The spring 712 is sleeved on the outside of the guide rod 79, and its two ends abut against the limiting disk 711 and the collar 78 respectively. The spring 712 is sleeved on the outside of the guide rod 79 between the limiting disk 711 and the collar 78. The spring 712 is in a slightly compressed state in its natural state, and its two ends abut against the limiting disk 711 and the collar 78 respectively. The elastic deformation of the spring 712 provides continuous elastic pressure to the scraper plate 73, ensuring that the scraper plate 73 can still fit tightly against the cleaning surface when the roller 4 rotates and the parts are slightly worn, avoiding cleaning blind spots due to gaps.

[0031] A connecting ring 71 is sleeved on the outer side of the roller 4. An arc groove 72 is opened on the outer side of the connecting ring 71. An L-shaped plate 74 is provided on the side of the scraper plate 73. A straight rod 75 is fixedly connected to the end of the L-shaped plate 74. An extrusion ball 76 is provided at the end of the straight rod 75 away from the L-shaped plate 74. The outer side of the extrusion ball 76 is movably disposed on the outer side of the connecting ring 71 and the inner side of the arc groove 72.

[0032] The connecting ring 71 rotates synchronously with the roller 4. A wavy arc groove 72 is provided on the outer side of the connecting ring 71. An L-shaped plate 74 is welded to the side of the scraper 73. A straight rod 75 is fixedly connected to the horizontal end of the L-shaped plate 74. A rollable extrusion ball 76 is embedded at the end of the straight rod 75 away from the L-shaped plate 74. The outer side of the extrusion ball 76 is movably attached to the outer side of the connecting ring 71 and the inner side of the arc groove 72. When the roller 4 rotates, it drives the connecting ring 71 to rotate. The arc groove 72 pushes the straight rod 75 through the extrusion ball 76, realizing the reciprocating swing of the scraper 73 and enhancing the cleaning effect.

[0033] The telescopic cleaning mechanism 8 includes a motor 81 located on the outside of the machine body 1. The output end of the motor 81 passes through the outside of the machine body 1 and is located at the end of the roller 4. A connecting post 82 connected to the fixed rod 77 is located on the inner side of the roller 4. A connecting groove 83 is opened on the outer side of the connecting post 82. The output end of the motor 81 passes through the side wall of the machine body 1 and is connected to the end of the roller 4 for transmission, driving the roller 4 to rotate. The connecting post 82 connected to the fixed rod 77 is coaxially fixed on the inner side of the roller 4. The connecting groove 83 provides a guide path for the telescopic movement of the subsequent cleaning components. The cleaning action and the rotation of the roller 4 are synchronized through mechanical transmission.

[0034] A cleaning cylinder 84 is provided on the outer side of the roller 4. The cleaning cylinder 84 is sleeved on the outer surface of the stirring rod 3. A connecting rod 89 is provided at the end of the stirring rod 3. A connecting ball 87 is provided at the end of the connecting rod 89 away from the stirring rod 3. The outer surface of the connecting ball 87 is movably disposed on the outer side of the connecting column 82 and the inner side of the connecting groove 83.

[0035] The cleaning cylinder 84 is movably sleeved on the outer surface of the stirring rod 3 without affecting the stirring action of the stirring rod 3. A connecting rod 89 is vertically fixed at the end of the stirring rod 3. A spherical connecting ball 87 is embedded at the end of the connecting rod 89 away from the stirring rod 3. The outer surface of the connecting ball 87 is movably embedded on the outside of the connecting column 82 and the inside of the spiral connecting groove 83. When the connecting column 82 rotates with the roller 4, the connecting groove 83 drives the connecting rod 89 through the connecting ball 87, thereby driving the cleaning cylinder 84 to move along the axial direction of the stirring rod 3 to achieve deep cleaning of the stirring rod 3.

[0036] A fixed ring 85, connected to the inner side of the roller 4, is fitted around the outer side of the stirring rod 3. A movable ring 86 is fitted around the outer surface of the stirring rod 3. A second spring 88 is fitted around the outer side of the stirring rod 3, with its two ends respectively located at the ends of the movable ring 86 and the fixed ring 85. The movable ring 86 is movably fitted around the outer surface of the stirring rod 3 and is fixedly connected to the inner side of the cleaning cylinder 84. A second spring 88 is also fitted around the outer side of the stirring rod 3, with its two ends abutting against the end faces of the movable ring 86 and the fixed ring 85, respectively. When the cleaning cylinder 84 moves axially, the second spring 88 provides an elastic restoring force through its expansion and contraction deformation, ensuring that the cleaning cylinder 84 always fits against the surface of the stirring rod 3, while also buffering the impact force during movement.

[0037] The surface of the stirring rod 3 is coated with a wear-resistant coating. The grooves 5 are evenly distributed along the axial direction of the roller 4, and the cross-section of the grooves 5 is arc-shaped. The surface of the stirring rod 3 is coated with a tungsten carbide wear-resistant coating with uniform thickness, which significantly improves the wear resistance and service life of the stirring rod 3 and is suitable for long-term high-intensity crushing operations. The grooves 5 on the surface of the roller 4 are evenly distributed along the axial direction and have an arc-shaped cross-section, which can enhance the crushing effect of raw materials and facilitate cleaning.

[0038] The arc-shaped baffle 6 is fitted with the outer surface of the roller 4 with a clearance. The inner side of the arc-shaped baffle 6 is provided with a polytetrafluoroethylene anti-stick layer. The scraper 73 is provided with an elastic scraper on the side near the roller 4 and the stirring rod 3. The arc-shaped baffle 6 and the outer surface of the roller 4 maintain a precise clearance fit. The size of the clearance is optimized so as not to affect the rotation of the roller 4 and to prevent powder from splashing. The inner side of the arc-shaped baffle 6 is provided with a polytetrafluoroethylene anti-stick layer to reduce the probability of powder adhesion. The scraper 73 is fixed with an elastic scraper on the side near the roller 4 and the stirring rod 3. The elastic scraper is made of wear-resistant rubber material to ensure the cleaning effect while avoiding scratching the surface of the roller 4 and the stirring rod 3.

[0039] After the motor 81 starts, it outputs power to drive the roller 4 to rotate around the bearing inside the machine body 1. The stirring rod 3 on the outer surface of the roller 4 rotates synchronously with the roller 4, applying mechanical force to the metal raw material inside the machine body 1 to achieve crushing and stirring operations. The arc-shaped groove 5 on the surface of the roller 4 increases the contact area with the raw material, further improving the crushing uniformity. The arc-shaped baffle 6 maintains a precise gap with the roller 4, which not only prevents raw material splashing, but also reduces powder adhesion through the polytetrafluoroethylene anti-stick layer on its inner side.

[0040] When the roller 4 rotates, the coaxially sleeved connecting ring 71 rotates synchronously. The wavy arc groove 72 on the outside of the connecting ring 71 pushes the L-shaped plate 74 to drive the scraper plate 73 to swing back and forth along the guide rod 79 by squeezing the squeezing ball 76 at the end of the straight rod 75. At the same time, the spring 712 on the outside of the guide rod 79 continuously applies pressure to the scraper plate 73 through elastic deformation, ensuring that the elastic scraper on the scraper plate 73 is closely attached to the outer surface of the roller 4 and the side of the stirring rod 3, and scrapes off the adhering powder in real time.

[0041] At the same time, the connecting column 82 on the inner side of the roller 4 rotates synchronously with the roller 4. The connecting groove 83 on the outer side of the connecting column 82 cooperates with the connecting ball 87 at the end of the connecting rod 89 to drive the cleaning cylinder 84 to reciprocate and extend along the axis of the stirring rod 3. The spring 88 on the outer side of the stirring rod 3 provides elastic restoring force through extension and contraction deformation, so that the cleaning cylinder 84 always fits against the surface of the stirring rod 3. With the axial movement of the cleaning cylinder 84, the stirring rod 3 is thoroughly cleaned along its entire length.

[0042] 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.

[0043] 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.

Claims

1. A high-efficiency production apparatus for metal additive powder, comprising a body (1), characterized in that: The machine body (1) has a discharge port (2) at the bottom. A roller (4) is rotatably installed inside the machine body (1). Stirring rods (3) are evenly distributed on the outer surface of the roller (4). Several grooves (5) are opened on the surface of the roller (4). An arc-shaped baffle (6) is provided inside the machine body (1) above the roller (4). An auxiliary cleaning mechanism (7) and a telescopic cleaning mechanism (8) are also provided inside the machine body (1) for cleaning the outer surfaces of the stirring rods (3) and the roller (4). The auxiliary cleaning mechanism (7) also includes a fixed rod (77) disposed inside the body (1). A collar (78) is sleeved in the middle of the fixed rod (77). A guide rod (79) is disposed on the outside of the collar (78). A Y-shaped plate (710) is fixedly connected to one end of the guide rod (79) away from the collar (78). A scraping plate (73) is disposed on the side of the Y-shaped plate (710). The end of the guide rod (79) is provided with a limiting plate (711), and a spring (712) is provided between the limiting plate (711) and the collar (78). The spring (712) is sleeved on the outside of the guide rod (79), and the two ends of the spring (712) abut against the limiting plate (711) and the collar (78) respectively. A connecting ring (71) is sleeved on the outer side of the roller (4), and an arc groove (72) is opened on the outer side of the connecting ring (71). An L-shaped plate (74) is provided on the side of the scraper (73), and a straight rod (75) is fixedly connected to the end of the L-shaped plate (74). An extrusion ball (76) is provided at the end of the straight rod (75) away from the L-shaped plate (74). The outer side of the extrusion ball (76) is movably disposed on the outer side of the connecting ring (71) and the inner side of the arc groove (72). The telescopic cleaning mechanism (8) includes a motor (81) located on the outside of the body (1). The output end of the motor (81) passes through the outside of the body (1) and is located at the end of the roller (4). The inner side of the roller (4) is provided with a connecting column (82) connected to the fixed rod (77). The outer side of the connecting column (82) is provided with a connecting groove (83). A cleaning cylinder (84) is provided on the outside of the roller (4). The cleaning cylinder (84) is sleeved on the outer surface of the stirring rod (3). A connecting rod (89) is provided at the end of the stirring rod (3). A connecting ball (87) is provided at the end of the connecting rod (89) away from the stirring rod (3). The outer surface of the connecting ball (87) is movably disposed on the outside of the connecting column (82) and the inside of the connecting groove (83).

2. The high-efficiency production apparatus for metal additive powder according to claim 1, characterized in that: The outer side of the stirring rod (3) is fitted with a fixed ring (85) that is connected to the inner side of the roller (4). The outer surface of the stirring rod (3) is fitted with a movable ring (86). The outer side of the stirring rod (3) is fitted with a second spring (88). The two ends of the second spring (88) are respectively located at the ends of the movable ring (86) and the fixed ring (85).

3. The high-efficiency production apparatus for metal additive powder according to claim 1, characterized in that: The surface of the stirring rod (3) is provided with a wear-resistant coating, the groove (5) is evenly distributed along the axial direction of the roller (4), and the cross section of the groove (5) is arc-shaped.

4. The high-efficiency production apparatus for metal additive powder according to claim 1, characterized in that: The arc-shaped baffle (6) is fitted with the outer surface of the roller (4) with a clearance. The inner side of the arc-shaped baffle (6) is provided with a polytetrafluoroethylene anti-stick layer. The scraper (73) is provided with an elastic scraper on the side near the roller (4) and the stirring rod (3).

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