Vanadium-nitrogen alloy material production and processing equipment and processing method

Abstract

The application discloses a vanadium-nitrogen alloy material production and processing device and a processing method, and relates to the technical field of vanadium-nitrogen alloy material processing. The device comprises a mounting frame, a forming compression roller, a forming groove, a driving gear, a feeding hopper, a material supplementing assembly and a poking assembly. The material supplementing assembly is arranged in the feeding hopper, so that the powder is guided and leveled through the tapered material guiding gap when entering the extrusion area of the forming compression roller, and the powder is pushed and pre-pressed by the pushing piece, thereby improving the compactness of the powder before entering the forming groove. Meanwhile, the poking assembly moves with the pushing piece and generates a periodic disturbance force on the powder, so as to destroy the bridging state formed by the powder accumulation and ensure the continuous and uniform conveying of the powder. Through the above structure, the powder can be more fully and uniformly filled in the forming groove, the internal porosity of the spherical green body is reduced, and the forming quality and production stability of the vanadium-nitrogen alloy spherical blank are improved.

Description

Technical Field

[0001] This invention relates to the field of vanadium-nitrogen alloy material processing technology, specifically to a vanadium-nitrogen alloy material production and processing equipment and processing method. Background Technology

[0002] Vanadium-nitrogen alloys are alloy materials mainly composed of vanadium compounds and nitrides. Due to their high strength, good toughness and excellent alloying effect, they are widely used in the production of high-strength low-alloy steel, micro-alloy steel and other steel materials.

[0003] In the production of vanadium-nitrogen alloys, the briquetting process is a crucial link between the raw material mixing stage and the high-temperature nitriding stage. Its main function is to press the mixed powdered material into spherical green blanks with a certain size and mechanical strength, thereby improving the material's packing stability and nitriding reaction efficiency during subsequent high-temperature treatment. Currently, vanadium-nitrogen alloy production often uses roller-type briquetting equipment for forming. This type of equipment typically includes a hopper, a feeding mechanism, and forming rollers that rotate relative to each other. The forming rollers have multiple forming grooves on their outer circumference. During operation, the mixed powder is conveyed by the feeding mechanism between the two opposing rotating forming rollers and enters the forming grooves under the extrusion pressure of the rollers, thus forming spherical green blanks.

[0004] However, existing vanadium-nitrogen alloy briquetting equipment still has certain shortcomings in actual production. When the powder enters the forming groove on the forming roller, the existing feeding method usually relies solely on the material's own gravity or the screw conveyor for filling, making it difficult to ensure that the powder can enter the forming groove evenly and fully. This can easily lead to insufficient filling or loose accumulation of powder in some forming grooves.

[0005] Furthermore, during the relative rotation of the pressure rollers, although the rollers can apply extrusion pressure to the powder entering the forming groove, the powder has not undergone effective pre-compaction treatment before entering the forming area. This results in a low initial packing density of the powder inside the forming groove, and insufficient rearrangement of the powder particles during the pressing process. Consequently, the formed spherical green billet is prone to having large pore structures and uneven density distribution. These internal structural defects can easily cause inconsistent nitrogen permeation paths during the subsequent high-temperature nitriding process, leading to insufficient reaction in the internal region of the billet. They can also easily reduce the compressive strength of the billet, causing breakage during conveying and sintering, thus affecting the quality and production stability of the vanadium-nitrogen alloy product.

[0006] Therefore, a vanadium-nitrogen alloy material production and processing equipment and processing method are proposed. Summary of the Invention

[0007] The purpose of this invention is to provide a vanadium-nitrogen alloy material production and processing equipment and method to solve the problems in the prior art where the powder is difficult to fill evenly and fully into the forming groove of the forming roller, resulting in insufficient filling and loose powder accumulation in some forming grooves; at the same time, due to the lack of effective pre-compaction treatment before the powder enters the forming area, the rearrangement between powder particles during the pressing process is insufficient, resulting in high porosity, uneven density distribution and insufficient mechanical strength of the formed spherical green blank.

[0008] To achieve the above objectives, the present invention provides the following technical solution: A vanadium-nitrogen alloy material production and processing equipment includes a mounting frame, forming rollers, forming grooves, drive gears, a feeding hopper, a feeding assembly, and a toggle assembly. The forming rollers are symmetrically arranged and rotatably connected to the mounting frame. The forming grooves are equidistantly spaced around the forming rollers. The drive gears are fixedly connected to the ends of the forming roller shafts, and two sets of drive gears mesh to cause the two sets of forming rollers to rotate synchronously in opposite directions. The feeding hopper is fixedly positioned above the mounting frame, and its bottom forms a guide outlet corresponding to the outer circumferential surface of the top of the two sets of forming rollers. It is used to convey vanadium-nitrogen alloy mixed powder to the extrusion area between the two sets of forming pressure rollers; the feeding component is located in the middle of the feeding hopper, and the distance from the bottom of the feeding component to the forming pressure roller gradually decreases from both ends of the feeding component to the middle. The feeding component is used to push and replenish the extrusion area between the forming pressure rollers; the actuating component is rotatably connected to the pushing part of the feeding component. During the movement of the pushing part, the actuating component generates periodic disturbance force on the powder inside the feeding component to break the bridging state formed by the accumulation of powder and make the powder enter the feeding channel evenly.

[0009] Preferably, the feeding assembly includes a storage hopper, a discharge port, and a pusher; the storage hopper is fixedly connected to the feeding hopper, the discharge port is located at the bottom of the storage hopper, and the pusher is slidably connected to the storage hopper.

[0010] Preferably, scraping surfaces are provided on both sides below the storage hopper. The scraping surfaces extend obliquely in the direction close to the extrusion area of ​​the forming roller, and the lower end of the scraping surfaces gradually shrinks toward the extrusion position between the two sets of forming rollers. A gradually narrowing guide gap is formed between the scraping surfaces and the outer peripheral surface of the corresponding forming roller, and the guide gap gradually decreases from both sides of the extrusion area of ​​the forming roller toward the center.

[0011] Preferably, the pushing component includes a support frame, an electric push rod, a rail groove, and a pushing plate; the support frame is fixedly connected to the feeding hopper, the electric push rod is fixedly connected to the support frame, the rail groove is fixedly installed on the inner wall of the storage hopper, the pushing plate is slidably connected to the rail groove, the pushing plate is fixedly connected to the output end of the electric push rod, and the bottom of the pushing plate is slidably connected to the discharge port.

[0012] Preferably, a limiting block is also fixedly connected to the pusher plate, and the limiting block abuts against the rail groove after the pusher plate is pushed down to its maximum extent.

[0013] Preferably, the actuating assembly includes an actuating impeller, teeth, transmission gears, and a rack; the actuating impeller is located on both sides of the pusher plate and is rotatably connected to it; the teeth are arranged in a ring array around both ends of the actuating impeller shaft; two sets of transmission gears are provided, both of which are rotatably connected to the pusher plate; both sets of transmission gears are located inside the two sets of actuating impellers and mesh with the teeth on the actuating impellers respectively; the rack is fixedly connected to the support frame; the rack extends into the pusher plate and is slidably connected to it; and the rack is located between the two sets of transmission gears, with the teeth on both sides meshing with the transmission gears on both sides respectively.

[0014] Preferably, multiple sets of the agitator impellers are arranged vertically on both sides of the pusher plate.

[0015] Preferably, a partition is also provided at the center of the pusher plate, the partition is fixedly connected to the pusher plate, and the partition is located between two sets of actuating impellers on both sides of the pusher plate.

[0016] Preferably, the pusher plate has a transmission mounting cavity inside, and the teeth, transmission gears and racks are all disposed in the transmission mounting cavity. The transmission mounting cavity is isolated from the powder flow area where the impeller blades are located, so as to prevent vanadium-nitrogen alloy powder from entering the meshing transmission area of ​​the teeth, transmission gears and racks.

[0017] A method for producing and processing vanadium-nitrogen alloy materials includes the following steps: S1. Add the mixed vanadium-nitrogen alloy powder into the feeding hopper and the feeding assembly, so that the powder forms a continuous feeding state inside the feeding hopper and the feeding assembly. S2. Start the forming rollers so that the two sets of forming rollers rotate synchronously in opposite directions under the meshing action of the drive gears. At the same time, the feeding component is used to supplement and push the powder entering the extrusion area, and guide and level the powder through the guide gap so that the powder is evenly distributed between the forming rollers. S3. Control the reciprocating motion of the pusher to periodically push and pre-press the powder entering the forming area, thereby increasing the density of the powder before it enters the forming groove. At the same time, use the toggle component to disturb the powder inside the feeding component to reduce uneven feeding caused by powder accumulation. S4. After uniform feeding and pre-pressing, the powder enters the forming groove and is pressed into a vanadium-nitrogen alloy spherical green billet under the extrusion pressure of two forming rollers.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention provides a feeding component inside the feeding hopper and utilizes the scraping surfaces on both sides below the feeding component and the gradually narrowing guide gap to ensure that the powder entering the forming roller extrusion area is continuously guided and uniformly constrained. This changes the problem of uneven powder distribution caused by the traditional briquetting equipment relying solely on the powder's own gravity to fall. It allows the powder to enter each forming groove more evenly, improving the integrity of the forming and filling process.

[0019] 2. By setting up a pusher, the pusher plate can reciprocate under the action of the electric pusher rod. Before the powder enters the forming area, it is periodically pushed and pre-pressed to improve the initial density of the powder when it enters the forming groove. This allows the powder particles to rearrange in advance, reduces the internal porosity of the spherical green billet, and improves the overall strength and density uniformity of the pressed vanadium-nitrogen alloy spherical billet.

[0020] 3. The invention, by setting up a toggle component, utilizes the linkage between the rack, transmission gear and toggle impeller during the movement of the pusher plate to enable the toggle impeller to periodically disturb the powder inside the feed hopper, effectively breaking the bridging phenomenon caused by static accumulation of powder and improving the continuity of powder flow. At the same time, by setting the transmission structure in an independent installation cavity, it avoids powder entering the transmission area and causing jamming, thus improving the long-term operational stability of the equipment. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the overall appearance of the present invention; Figure 2 This is an enlarged schematic diagram of the structure near the feeding hopper of the present invention; Figure 3 This is an enlarged structural schematic diagram of the feeding hopper and storage hopper of the present invention; Figure 4 This is a schematic diagram of the feeding assembly structure of the present invention; Figure 5 This is an enlarged schematic diagram of the structure near the agitator impeller of the present invention; Figure 6 This is a schematic diagram of the toggle assembly structure of the present invention; Figure 7 This is a cross-sectional view of the pusher plate of the present invention.

[0022] In the diagram: 1. Mounting frame; 2. Forming roller; 21. Forming groove; 3. Drive gear; 4. Feeding hopper; 5. Feeding assembly; 51. Storage hopper; 511. Scraping surface; 52. Discharge port; 53. Pushing component; 531. Support frame; 532. Electric actuator; 533. Track groove; 534. Pushing plate; 5341. Limiting block; 54. Guide gap; 6. Actuating assembly; 61. Actuating impeller; 62. Tooth; 63. Transmission gear; 64. Rack; 7. Partition plate; 8. Mounting cavity. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1 to 7 This invention provides a vanadium-nitrogen alloy material production and processing equipment and processing method, the technical solution of which is as follows: Reference Figure 1 and Figure 2 A vanadium-nitrogen alloy material production and processing equipment includes a mounting frame 1, forming rollers 2, forming grooves 21, a drive gear 3, a feeding hopper 4, a feeding assembly 5, and a toggle assembly 6. The mounting frame 1 serves as the main support for the entire equipment, providing fixed support for the forming rollers 2, feeding hopper 4, and feeding assembly 5. The mounting frame 1 adopts a frame structure to ensure high installation stability and facilitates relatively accurate positional relationships between functional components. Two sets of forming rollers 2 are symmetrically arranged horizontally and rotatably connected to the mounting frame 1 via rotating shafts, allowing the two sets of forming rollers 2 to rotate synchronously within the mounting frame 1. Multiple sets of forming grooves 21 are provided, evenly spaced along the outer circumference of the forming rollers 2. The shape and size of the forming grooves 21 are set according to the pressing requirements of the vanadium-nitrogen alloy material, and are used to guide the material entering the two sets of forming rollers. The powdery mixture between the rollers 2 is formed; two sets of drive gears 3 are provided and fixedly installed at one end of the corresponding rotating shaft of the two sets of forming rollers 2, and the two sets of drive gears 3 are meshed with each other. Through the meshing transmission relationship between the drive gears 3, the two sets of forming rollers 2 can maintain a relatively synchronous rotation state, avoiding the difference in speed between the two sets of forming rollers 2 during operation, which would affect the stability of the forming pressure. One set of rotating shafts is fixedly connected to the output end of the drive motor and is driven by the drive motor to realize the relative rotation of the forming rollers 2; the feeding hopper 4 is fixedly set above the mounting frame 1. The feeding hopper 4 has an overall structure that is wider at the top and narrower at the bottom. Its interior forms a storage space for temporarily storing vanadium-nitrogen alloy mixed powder. The bottom of the feeding hopper 4 forms a guide outlet, which is located above the two sets of forming rollers 2 and corresponds to the outer circumferential surface of the top of the two sets of forming rollers 2, so that the mixed powder in the feeding hopper 4 can be concentratedly transported to the extrusion area between the two sets of forming rollers 2; The feeding component 5 is located in the middle of the feeding hopper 4, and is positioned above the area where the two forming rollers 2 are close to each other. The distance from the bottom of the feeding component 5 to the outer circumference of the forming roller 2 gradually decreases from both sides towards the middle, so that the feeding component 5 can form a gradually shrinking guiding structure. The feeding component 5 is used to supplement the material area between the two forming rollers 2, so that the powder entering the forming groove 21 can be completely filled. The agitating component 6 is rotatably connected to the pushing part in the feeding component 5. The pushing part is located in the powder flow area and can move synchronously with the pushing part of the feeding component 5. The agitating component 6 itself disturbs the powder inside the feeding component 5, so that the powder inside the feeding component 5 maintains a good flow state.

[0025] Reference Figure 3 and Figure 4 The feeding assembly 5 includes a storage hopper 51, a discharge port 52, and a pusher 53. The storage hopper 51 is fixedly connected to the inside of the feeding hopper 4 and forms the main storage space of the feeding assembly 5. The discharge port 52 is located at the bottom of the storage hopper 51 and extends along the axial direction of the forming roller 2, so that the powder inside the storage hopper 51 can enter the forming area between the two forming rollers 2 through the discharge port 52. The pusher 53 is slidably connected to the storage hopper 51 and can reciprocate inside the storage hopper 51 to push and convey the powder inside the storage hopper 51.

[0026] Reference Figure 3 The storage hopper 51 is provided with scraping surfaces 511 on both sides below. The scraping surfaces 511 extend obliquely along the direction close to the extrusion area of ​​the forming roller 2, so that the bottom of the storage hopper 51 forms a gradually shrinking guide structure. The lower end of the scraping surface 511 gradually shrinks towards the extrusion position between the two forming rollers 2, and forms a gradually shrinking guide gap 54 with the outer peripheral surface of the corresponding forming roller 2. The guide gap 54 gradually decreases from both sides of the extrusion area of ​​the forming roller 2 towards the center. The powder in the feeding hopper 4 will pass through the guide gap 54 before entering the extrusion area. After being scraped by the scraping surface 511, the powder can enter the forming groove 21 more evenly.

[0027] Reference Figure 4The pusher component 53 includes a support frame 531, an electric push rod 532, a rail groove 533, and a pusher plate 534. The support frame 531 is fixedly connected to the upper position of the feeding hopper 4 and is used to support the electric push rod 532. The electric push rod 532 is fixedly installed on the support frame 531, and its output end is fixedly connected to the pusher plate 534. The extension and retraction movement of the electric push rod 532 drives the pusher plate 534 to move vertically. The rail groove 533 is fixedly set on both sides of the inner wall of the storage hopper 51, and the two sides of the pusher plate 534 slide against the rail groove 533. The pusher plate 534 moves up and down along a fixed trajectory. The bottom of the pusher plate 534 is slidably connected to the discharge port 52. During the movement, the pusher plate 534 can push the powder inside the storage hopper 51. First, it can push the powder in the storage hopper 51 to the extrusion area. Second, it can also apply a downward pressing action to the powder in the extrusion area, thereby increasing the density of the powder in the forming groove 21 and improving the quality of the finished product after powder pelletizing. During the operation, the electric pusher rod 532 will continuously and rapidly push the pusher plate 534 to reciprocate.

[0028] Reference Figure 4 A limiting block 5341 is also fixedly connected to the pusher plate 534. The limiting block 5341 is set on one side of the pusher plate 534 in the corresponding moving direction, and can form an abutment limit with the rail groove 533 when the pusher plate 534 moves downward to the maximum position. By setting the limiting block 5341, the maximum moving stroke of the pusher plate 534 can be limited, so as to avoid the pusher plate 534 moving too far and causing interference with the structure of the forming pressure roller 2, thereby improving the overall running stability of the pusher 53.

[0029] Reference Figure 5 and Figure 6The actuating assembly 6 includes an actuating impeller 61, teeth 62, transmission gears 63, and a rack 64. The actuating impeller 61 is located on both sides of the pusher plate 534 and is rotatably connected to the pusher plate 534, allowing the actuating impeller 61 to rotate relative to the pusher plate 534. The teeth 62 are arranged in a ring array on the outer circumferential surfaces of both ends of the actuating impeller 61's rotating shaft. Two sets of transmission gears 63 are provided, both rotatably mounted inside the pusher plate 534. The two sets of transmission gears 63 are located inside the two sets of actuating impellers 61 and mesh with the teeth 62 on the corresponding actuating impellers 61. The rack 64 is fixedly connected to the support frame 531 and extends into the pusher plate 534, slidingly connected to the pusher plate 534. The rack 64 is located between two sets of transmission gears 63, and both sides of the rack 64 are respectively meshed with the two sets of transmission gears 63, so that the actuating impeller 61, the transmission gears 63 and the rack 64 form a linkage transmission structure. When the pusher plate 534 descends, the rack 64 will drive the actuating impeller 61 to rotate through the transmission gears 63, thereby driving the powder in the storage hopper 51 to move upward, preventing the high powder density from affecting the smooth movement of the pusher plate 534. When the pusher plate 534 rises, the rack 64 will drive the actuating impeller 61 to rotate in the opposite direction through the transmission gears 63, thereby driving the powder in the storage hopper 51 to move downward, preventing the powder from agglomerating, and allowing the powder to fall to the vicinity of the discharge port 52, so that the pusher plate 534 can push the powder out in the next cycle.

[0030] Reference Figure 5 Multiple sets of agitator impellers 61 are arranged vertically on both sides of the pusher plate 534. The multiple sets of agitator impellers 61 correspond to different height areas inside the storage hopper 51, so that the pusher plate 534 can drive the agitator impellers 61 at multiple positions to move synchronously during the movement. By setting multiple sets of agitator impellers 61, the range of action of the agitator component 6 on the powder area inside the storage hopper 51 can be expanded, so that the powder at different height positions can be disturbed.

[0031] Reference Figure 7 A partition 7 is also provided at the center of the pusher plate 534. The partition 7 is fixedly connected to the pusher plate 534 and is located between the two sets of actuating impellers 61 on both sides of the pusher plate 534. The partition 7 is used to separate the transmission areas on both sides of the pusher plate 534, so that the overall structure of the pusher plate 534 has better stability, and at the same time reduces the mutual influence generated by the actuating impellers 61 on both sides during operation.

[0032] Reference Figure 7The pusher plate 534 has a transmission mounting cavity 8 inside, and the teeth 62, transmission gear 63 and rack 64 are all located inside the transmission mounting cavity 8. The transmission mounting cavity 8 is isolated from the powder flow area where the blades of the agitator impeller 61 are located, so that the transmission components such as the transmission gear 63, rack 64 and teeth 62 are in a relatively closed space, avoiding the vanadium-nitrogen alloy powder from entering the gear meshing area and causing transmission obstruction, while improving the reliability of the agitator assembly 6 during operation.

[0033] A method for producing and processing vanadium-nitrogen alloy materials includes the following steps: S1. Add the mixed vanadium-nitrogen alloy powder into the feeding hopper 4 and the feeding component 5, so that the powder forms a continuous feeding state inside the feeding hopper 4 and the feeding component 5. S2. Start the forming roller 2, so that the two sets of forming rollers 2 rotate synchronously towards each other under the meshing action of the drive gear 3. At the same time, the feeding component 5 is used to supplement and push the powder entering the extrusion area, and the powder is guided and leveled through the guide gap 54, so that the powder is evenly distributed between the forming rollers 2. S3. Control the reciprocating motion of the pusher 53 so that the pusher plate 534 periodically pushes and pre-presses the powder entering the forming area, thereby increasing the density of the powder before it enters the forming groove. At the same time, the toggle component 6 is used to disturb the powder inside the feeding component 5, thereby reducing uneven feeding caused by powder accumulation. S4. After uniform feeding and pre-pressing, the powder enters the forming groove and is pressed into a vanadium-nitrogen alloy spherical green billet under the extrusion pressure of two forming rollers 2.

[0034] Working principle: When using the vanadium-nitrogen alloy material production and processing equipment provided by the present invention, the vanadium-nitrogen alloy powder after mixing is first added into the feeding hopper 4 and the storage hopper 51 respectively. The powder in the feeding hopper 4 moves towards the bottom of the feeding hopper 4 under its own gravity and enters the extrusion area between the two sets of forming rollers 2 through the guide outlet at the bottom of the feeding hopper 4. At this time, the drive motor drives one set of forming rollers 2 to rotate, and the drive gears 3 set at the ends of the rotating shafts of the two sets of forming rollers 2 mesh with each other to make the two sets of forming rollers 2 rotate synchronously in opposite directions, thereby extruding and forming the powder that enters between the two sets of forming rollers 2, so that the powder enters the forming groove 21 on the outer circumference of the forming roller 2 and forms a spherical green blank of the corresponding shape. During the process of the powder entering the space between the two forming rollers 2 from the feeding hopper 4, the powder first passes through the guiding area formed at the bottom of the feeding assembly 5. Since there are inclined scraping surfaces 511 on both sides below the storage hopper 51, and a gradually narrowing guiding gap 54 is formed between the scraping surfaces 511 and the outer peripheral surface of the corresponding forming roller 2, the powder entering the extrusion area is guided and restricted by the scraping surfaces 511, which avoids local accumulation of powder on both sides of the forming roller 2, and allows the powder to gradually converge towards the extrusion area in the middle of the two forming rollers 2 along the guiding gap 54. Meanwhile, as the material guide gap 54 gradually decreases from both sides of the forming roller 2 extrusion area towards the center, the powder is subjected to a gradually enhanced constraint during the process of passing through the material guide gap 54, so that the loose powder can form a more uniform spreading state before entering the forming groove 21, thereby improving the uniformity of the powder entering each forming groove 21. During the powder conveying process, the pusher 53 works synchronously, and the electric pusher 532 drives the pusher plate 534 to move up and down rapidly along the track groove 533. When the pusher plate 534 moves downward, its bottom can push and press the powder in the storage hopper 51, pushing the powder in the storage hopper 51 to the top of the extrusion area and applying pre-compression treatment to improve the initial density of the powder before entering the forming groove 21 and reduce the problem of insufficient filling of the forming groove 21 due to loose powder. Meanwhile, during the reciprocating movement of the pusher plate 534, the agitator component 6 will move synchronously with the pusher plate 534. When the pusher plate 534 moves up and down relative to the fixed rack 64, the rack 64 and the transmission gear 63 mesh, causing the transmission gear 63 to rotate. Furthermore, through meshing with the teeth 62 on the shaft of the agitator impeller 61, the agitator impeller 61 is driven to rotate. Since the agitator impeller 61 is located on both sides of the pusher plate 534 and within the powder flow area, the rotation of the agitator impeller 61 can generate periodic disturbance force on the powder inside the storage hopper 51, causing the mutually compressed and piled powder particles to loosen, breaking the bridging state formed by the static accumulation of powder, and reducing the adhesion and resistance between powder particles in the storage hopper 51. During the continuous reciprocating motion of the pusher plate 534, multiple sets of vertically arranged agitator impellers 61 can synchronously agitate the powder in different height areas, ensuring that the powder in different positions inside the feed hopper 4 maintains a good flow state. Simultaneously, the partition plate 7 and transmission mounting cavity 8 inside the pusher plate 534 isolate the transmission structures such as the teeth 62, transmission gears 63, and racks 64 from the powder flow area, preventing powder from entering the transmission meshing area and causing jamming, thus improving the stability of equipment operation. After the above-mentioned process, the powder enters between the two sets of forming rollers 2. Under the extrusion force generated by the opposing rotation of the two sets of forming rollers 2, it enters the forming groove 21 and is pressed into a vanadium-nitrogen alloy spherical green blank of the corresponding shape. Since the powder has been uniformly guided by the guide gap 54, flattened and constrained by the scraper surface 511, compacted by the pusher plate 534, and disturbed by the agitator 6 before entering the forming area, the amount of powder entering each forming groove 21 is more uniform. This reduces the problem of uneven density of the spherical blank caused by insufficient powder filling or loose accumulation, and improves the pressing and forming quality of vanadium-nitrogen alloy.

[0035] 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 vanadium-nitrogen alloy material production and processing equipment, characterized in that: The system includes a mounting frame, forming rollers, forming grooves, drive gears, a feeding hopper, a feeding assembly, and a toggle assembly. The forming rollers are symmetrically arranged and rotatably connected to the mounting frame. The forming grooves are equidistantly spaced around the forming rollers. The drive gears are fixedly connected to the ends of the forming roller shafts, and two sets of drive gears mesh to make the two sets of forming rollers rotate synchronously in opposite directions. The feeding hopper is fixedly arranged above the mounting frame, and the bottom of the feeding hopper forms a guide outlet corresponding to the outer circumferential surface of the top of the two sets of forming rollers, used to convey vanadium-nitrogen alloy mixed powder to the extrusion area between the two sets of forming rollers. The feeding component is located in the middle of the feeding hopper. The distance from the bottom of the feeding component to the forming roller gradually decreases from both ends of the feeding component to the middle. The feeding component is used to push and replenish the extrusion area between the forming rollers. The agitator is rotatably connected to the pushing part of the feeding component. During the movement of the pushing part, the agitator generates periodic disturbance force on the powder inside the feeding component to break the bridging state formed by the accumulation of powder.

2. The vanadium-nitrogen alloy material production and processing equipment according to claim 1, characterized in that: The feeding assembly includes a storage hopper, a discharge port, and a pusher; the storage hopper is fixedly connected to the feeding hopper, the discharge port is located at the bottom of the storage hopper, and the pusher is slidably connected to the storage hopper.

3. The vanadium-nitrogen alloy material production and processing equipment according to claim 2, characterized in that: The material storage hopper is also provided with scraping surfaces on both sides below. The scraping surfaces extend obliquely in the direction close to the extrusion area of ​​the forming roller, and the lower end of the scraping surfaces gradually shrinks towards the extrusion position between the two sets of forming rollers. A gradually narrowing guide gap is formed between the scraping surfaces and the outer peripheral surface of the corresponding forming roller, and the guide gap gradually decreases from both sides of the extrusion area of ​​the forming roller towards the center.

4. The vanadium-nitrogen alloy material production and processing equipment according to claim 3, characterized in that: The pushing component includes a support frame, an electric push rod, a rail groove, and a pushing plate; the support frame is fixedly connected to the feeding hopper, the electric push rod is fixedly connected to the support frame, the rail groove is fixedly installed on the inner wall of the storage hopper, the pushing plate is slidably connected to the rail groove, the pushing plate is fixedly connected to the output end of the electric push rod, and the bottom of the pushing plate is slidably connected to the discharge port.

5. The vanadium-nitrogen alloy material production and processing equipment according to claim 4, characterized in that: A limiting block is also fixedly connected to the pusher plate, and the limiting block abuts against the rail groove after the pusher plate is pushed down to its maximum extent.

6. The vanadium-nitrogen alloy material production and processing equipment according to claim 5, characterized in that: The actuating assembly includes an actuating impeller, teeth, transmission gears, and a rack. The actuating impeller is located on both sides of the pusher plate and is rotatably connected to it. The teeth are arranged in a ring array around both ends of the actuating impeller shaft. There are two sets of transmission gears, both of which are rotatably connected to the pusher plate. The two sets of transmission gears are located inside the two sets of actuating impellers and mesh with the teeth on the actuating impellers respectively. The rack is fixedly connected to the support frame. The rack extends into the pusher plate and is slidably connected to it. The rack is located between the two sets of transmission gears and meshes with the transmission gears on both sides respectively.

7. The vanadium-nitrogen alloy material production and processing equipment according to claim 6, characterized in that: Multiple sets of the agitator impellers are arranged vertically on both sides of the pusher plate.

8. The vanadium-nitrogen alloy material production and processing equipment according to claim 7, characterized in that: A partition is also provided at the center of the pusher plate. The partition is fixedly connected to the pusher plate and is located between two sets of actuating impellers on both sides of the pusher plate.

9. The vanadium-nitrogen alloy material production and processing equipment according to claim 8, characterized in that: The pusher plate has a transmission mounting cavity inside, and the teeth, transmission gears and racks are all located in the transmission mounting cavity. The transmission mounting cavity is isolated from the powder flow area where the impeller blades are located, so as to prevent vanadium-nitrogen alloy powder from entering the meshing transmission area of ​​the teeth, transmission gears and racks.

10. A method for producing and processing vanadium-nitrogen alloy materials, characterized in that: The equipment for producing and processing vanadium-nitrogen alloy materials according to any one of claims 1 to 9 includes the following steps: S1. Add the mixed vanadium-nitrogen alloy powder into the feeding hopper and the feeding assembly, so that the powder forms a continuous feeding state inside the feeding hopper and the feeding assembly. S2. Start the forming rollers so that the two sets of forming rollers rotate synchronously in opposite directions under the meshing action of the drive gears. At the same time, the feeding component is used to supplement and push the powder entering the extrusion area, and guide and level the powder through the guide gap so that the powder is evenly distributed between the forming rollers. S3. Control the reciprocating motion of the pusher to periodically push and pre-press the powder entering the forming area, thereby increasing the density of the powder before it enters the forming groove. At the same time, use the toggle component to disturb the powder inside the feeding component to reduce uneven feeding caused by powder accumulation. S4. After uniform feeding and pre-pressing, the powder enters the forming groove and is pressed into a vanadium-nitrogen alloy spherical green billet under the extrusion pressure of two forming rollers.

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