Feeding device for powder metallurgy

Abstract

The utility model discloses a feeding device for powder metallurgy, which relates to the field of powder metallurgy and comprises a mounting plate, two box body guide rails are arranged on the mounting plate, a box body is arranged between the two box body guide rails in a sliding manner, a telescopic rod for pushing the box body is mounted on the mounting plate, a rack is arranged at one end of the inner side of each box body guide rail, and the other end of the inner side of each box body guide rail is provided with a telescopic rod. The two sides of one end of the box body are rotationally connected with gears meshed with the racks, the gears drive screw rods to rotate through a transmission structure, the screw rods are rotationally arranged in the box body in the length direction of the box body, a push plate is connected between the two screw rods, and the push plate is located at the end, close to the gear direction, in the box body when the telescopic rod does not extend. The gear structures are arranged on the two sides of one end of the box body, the racks matched with the gear structures are arranged on the inner sides of the guide rails of the box body, and the situation that metal powder at the front end of a mold is not evenly distributed due to the fact that the mold is deep is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the field of powder metallurgy, in particular to a feeding device for powder metallurgy. Background Art

[0002] Powder metallurgy is a process technology that produces metal powder or uses metal powder (or a mixture of metal powder and non-metallic powder) as raw material, and manufactures metal materials, composite materials and various types of products through forming and sintering.

[0003] In the prior art, before sintering metal powder, the metal powder needs to be placed in a mold and pressed to form the shape of the part to be sintered. In the process of placing the metal powder in the mold, a metal powder feeding device is needed. Most of the existing feeding devices are located above the mold, have a rectangular hollow shape and are provided with an opening at the bottom, and can slide in a sliding track. After the metal powder is filled into the feeding device, the feeding device is pushed to pass over the top of the mold, and the metal powder inside it falls into the mold. The feeding device fills and smoothes the mold with powder while moving back and forth.

[0004] With respect to the above-mentioned related technologies, when the existing feeding device for powder metallurgy is performing metal powder feeding work, in the process of pushing the feeding device forward, the powder at the front end of the feeding device will fall first when it is located above the mold. When the depth of the mold is deeper, the powder at the front end of the feeding device is not enough to fill the front end of the mold, and as the feeding device continues to move forward, the powder at the rear end of the feeding device will fall vertically to other positions of the mold. When feeding metal powder, the problem of insufficient powder at the front end of the mold is prone to occur, resulting in uneven feeding into the mold, and when filling the feeding device with metal powder, the metal powder is not easy to be evenly distributed in the feeding device. The metal powder accumulated in the feeding device will also affect the uniformity of filling into the mold during the subsequent pushing process. In summary, the existing feeding device for powder metallurgy is prone to uneven feeding into the mold. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a feeding device for powder metallurgy to solve the technical problem that the existing feeding devices for powder metallurgy are prone to uneven feeding into the mold.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a feeding device for powder metallurgy, comprising a mounting plate, two box body guide rails are arranged on the mounting plate, and a box body is slidably arranged between the two box body guide rails, a telescopic rod for pushing the box body is installed on the mounting plate, a rack is arranged at one end on the inner side of the box body guide rail, both sides of one end of the box body are rotatably connected with a gear meshing with the rack, the gear drives a screw to rotate through a transmission structure, the screw is rotatably arranged in the box body along the length direction of the box body, a push plate is connected between the two screws, and when the telescopic rod is not extended, the push plate is located at one end of the box body close to the gear direction.

[0007] By adopting the above technical solution, gear structures are arranged on both sides of one end of the box body, and a rack matched with the gear structure is arranged on the inner side of the guide track of the box body. When the box body is pushed forward, the driving structures such as the gear rack cooperate with each other to make the push plate in the box body move forward synchronously, so that the metal powder in the box body is pushed forward relative to the box body when the box body moves forward, effectively avoiding the uneven distribution of metal powder at the front end of the mold due to the deep mold.

[0008] The utility model is further configured that the box body is provided with a reduction box above the gear, the rotating shaft of the gear is connected to the output end of the reduction box, one end of the screw rod extends out of the box body, and the output shaft of the reduction box and the part of the screw rod extending out of the box body are connected by a transmission belt.

[0009] By adopting the above technical solution, the synchronous movement of the push plate is achieved.

[0010] The utility model is further configured that the mounting plate is provided with a material drop opening for dropping materials, and the length and width of the material drop opening are both smaller than the box body.

[0011] By adopting the above technical solution, the metal powder in the box body can smoothly cover the mold below the blanking opening.

[0012] The utility model is further configured that a vibration plate whose length and width are both larger than the box body is arranged on the mounting plate, a vibration plate platform for supporting the vibration plate is arranged on the mounting plate, and a vibration motor is fixedly connected to the bottom surface of the vibration plate.

[0013] By adopting the above technical solution, the uniformity of subsequent metal powder feeding is effectively improved.

[0014] The utility model is further configured that the box body is provided with a slide rail in the direction of the telescopic rod, and the front end of the telescopic part of the telescopic rod can slide up and down in the slide rail.

[0015] By adopting the above technical solution, when the vibration motor is working, the vibration plate and the box body vibrate up and down without affecting the connection between the telescopic rod and the box body.

[0016] The utility model is further configured such that the top surface of the vibration plate is flush with the top surface of the mounting plate when the vibration motor is not working.

[0017] By adopting the above technical solution, the phenomenon of powder jamming at the edge of the vibration plate can be avoided.

[0018] The utility model is further configured that one end of the box body away from the telescopic rod is fixedly connected with a guide rod, and both ends of the guide rod are in contact with the inner wall of the box body guide rail.

[0019] By adopting the above technical solution, the box body is guided by the guide rod, and both ends of the guide rod are in contact with the inner wall of the box body guide rail so that the box body can be smoothly extended forward or pulled back.

[0020] The utility model is further configured that the top end of the box body is fixedly connected with a feeding port.

[0021] By adopting the above technical solution, the metal powder is fed into the box body through the feeding port.

[0022] In summary, the utility model mainly has the following beneficial effects:

[0023] 1. The utility model arranges gear structures on both sides of one end of the box body, arranges a rack matched with the gear structure on the inner side of the guide track of the box body, and while the box body is pushed forward, the driving structures such as the gear rack cooperate with each other to make the push plate in the box body move forward synchronously, so that the metal powder in the box body is pushed forward relative to the box body while the box body moves forward, effectively avoiding the uneven distribution of metal powder at the front end of the mold due to the deep mold;

[0024] 2. The utility model sets a vibration plate structure at the stop position of the box body, connects a vibration motor to the bottom end of the vibration plate, and connects a slide groove structure between the box body and the telescopic rod for the end of the telescopic rod to slide up and down. While injecting metal powder into the box body, the vibration motor works, so that the metal powder can be distributed as evenly as possible in the box body, further improving the uniformity of filling the metal powder into the mold from the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of the utility model;

[0026] Figure 2 For the utility model Figure 1 A magnified view of middle;

[0027] Figure 3Another perspective view of the present invention;

[0028] Figure 4 It is an exploded view of the utility model;

[0029] Figure 5 For the utility model Figure 4 Enlarged view of middle B;

[0030] Figure 6 It is a three-dimensional diagram of the internal structure of the box body of the present utility model.

[0031] In the figure: 1. Mounting plate; 2. Box guide rail; 3. Box body; 4. Dropping port; 5. Feeding port; 6. Telescopic rod; 7. Slide rail; 8. Rack; 9. Gear; 10. Reducer; 11. Screw; 12. Push plate; 13. Guide rod; 14. Vibration plate platform; 15. Vibration plate; 16. Vibration motor. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0033] The following describes an embodiment of the utility model based on its overall structure.

[0034] Embodiment 1

[0035] A feeding device for powder metallurgy, such as Figure 1-6 As shown, it includes a mounting plate 1, on which two box guide rails 2 are arranged, and a box body 3 is slidably arranged between the two box guide rails 2, and a telescopic rod 6 for pushing the box body 3 is installed on the mounting plate 1, and a rack 8 is arranged at one end of the inner side of the box guide rail 2, and both sides of one end of the box body 3 are rotatably connected with a gear 9 meshing with the rack 8, and the gear 9 drives a screw rod 11 to rotate through a transmission structure, and the screw rod 11 is rotatably arranged in the box body 3 along the length direction of the box body 3, and a push plate 12 is connected between the two screws 11. When the telescopic rod 6 is not extended, the push plate 12 is located in the box body 3 near At one end of the gear 9, a reduction box 10 is provided on the box body 3 above the gear 9, the rotating shaft of the gear 9 is connected to the output end of the reduction box 10, one end of the screw 11 extends out of the box body 3, and the output shaft of the reduction box 10 and the part of the screw 11 extending out of the box body 3 are connected by a transmission belt. When the box body 3 is pushed by the telescopic rod 6, the gear 9 rotates in meshing with the rack 8, and the rotating shaft of the gear 9 drives the input end of the reduction box 10 to rotate, the speed of the output end of the reduction box 10 is reduced and the torque is increased, and the screw 11 is driven to rotate stably through the transmission belt, thereby realizing the synchronous movement of the push plate 12.

[0036] See also Figure 1 A blanking port 4 for blanking is provided on the mounting plate 1. The length and width of the blanking port 4 are both smaller than the box body 3. When loading, the mold is located below the blanking port 4, and the top surface of the mold is flush with the blanking port 4. The size of the blanking port 4 is smaller than that of the box body 3, so that the metal powder in the box body 3 can smoothly cover the mold below the blanking port 4.

[0037] See also Figure 3-6 The end of the box body 3 away from the telescopic rod 6 is fixedly connected with a guide rod 13, and both ends of the guide rod 13 are in contact with the inner wall of the box body guide rail 2. The box body 3 is guided by the guide rod 13. The two ends of the guide rod 13 are in contact with the inner wall of the box body guide rail 2 so that the box body 3 can be smoothly extended forward or pulled back. The top of the box body 3 is fixedly connected with a feeding port 5, and the feeding port 5 is used to feed metal powder into the box body 3.

[0038] Embodiment 2

[0039] A feeding device for powder metallurgy, such as Figure 1-6 As shown, on the basis of the first embodiment, the difference from the first embodiment is that a vibration plate 15 whose length and width are both larger than the box body 3 is arranged on the mounting plate 1, and a vibration plate table 14 for carrying the vibration plate 15 is arranged at the vibration plate 15 of the mounting plate 1, and a vibration motor 16 is fixedly connected to the bottom surface of the vibration plate 15, and the box body 3 and the powder in the box body 3 are vibrated by the vibration of the vibration plate 15, so that the powder in the box body 3 is evenly distributed, which effectively improves the uniformity of subsequent metal powder feeding, and the box body 3 is provided with a sliding plate toward the telescopic rod 6. Rail 7, the front end of the telescopic part of the telescopic rod 6 can slide up and down in the slide rail 7. Since the front end of the telescopic rod 6 can slide up and down in the slide rail 7, the vibration motor 15 makes the vibration plate 15 and the box body 3 vibrate up and down when working, which will not affect the connection between the telescopic rod 6 and the box body 3. The top surface of the vibration plate 15 is flush with the top surface of the mounting plate 1 when the vibration motor 16 is not working. When the vibration plate 15 is not vibrating, the telescopic rod 6 can be extended to smoothly push out the box body 3, avoiding the phenomenon of powder jamming at the edge of the vibration plate 15.

[0040] The working principle of the utility model is as follows: metal powder is fed into the box body 3 from the feeding port 5, and the vibration motor 15 works to evenly distribute the metal powder in the box body 3. After the metal powder in the box body 3 reaches the required amount, the telescopic rod 6 extends to push the box body 3 to move forward, and the gears 9 on both sides of the box body 3 are meshed with the rack 8, so that the push plate 12 in the box body 3 moves forward inside the box body 3 while the box body 3 moves forward, pushing the metal powder inside the box body 3 to move forward, and then after the metal powder at the front end of the box body 3 falls into the mold, subsequent metal powder can be filled and added, effectively closing the uneven filling of the metal powder at the front end of the mold.

[0041] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A feeding device for powder metallurgy, comprising a mounting plate (1), two box body guide rails (2) are arranged on the mounting plate (1), and a box body (3) is slidably arranged between the two box body guide rails (2), and a telescopic rod (6) for pushing the box body (3) is installed on the mounting plate (1), characterized in that: A rack (8) is provided at one end of the inner side of the box body guide rail (2), and gears (9) meshing with the rack (8) are rotatably connected to both sides of one end of the box body (3), and the gears (9) drive the screw rod (11) to rotate through a transmission structure, and the screw rod (11) is rotatably arranged in the box body (3) along the length direction of the box body (3), and a push plate (12) is connected between the two screw rods (11), and the push plate (12) is located at one end of the box body (3) close to the gear (9) when the telescopic rod (6) is not extended.

2. The powder metallurgy feeding device according to claim 1, characterized in that: The box body (3) is provided with a reduction box (10) above the gear (9); the rotating shaft of the gear (9) is connected to the output end of the reduction box (10); one end of the screw rod (11) extends out of the box body (3); and the output shaft of the reduction box (10) and the part of the screw rod (11) extending out of the box body (3) are connected via a transmission belt.

3. The powder metallurgy feeding device according to claim 1, characterized in that: The mounting plate (1) is provided with a material dropping opening (4) for dropping materials, and the length and width of the material dropping opening (4) are both smaller than the box body (3).

4. The powder metallurgy feeding device according to claim 1, characterized in that: The mounting plate (1) is provided with a vibration plate (15) whose length and width are both greater than the box body (3); the mounting plate (1) is provided with a vibration plate platform (14) for supporting the vibration plate (15) at the vibration plate (15); and a vibration motor (16) is fixedly connected to the bottom surface of the vibration plate (15).

5. The powder metallurgy feeding device according to claim 4, characterized in that: The box body (3) is provided with a slide rail (7) in the direction of the telescopic rod (6), and the front end of the telescopic part of the telescopic rod (6) can slide up and down in the slide rail (7).

6. The powder metallurgy feeding device according to claim 5, characterized in that: The top surface of the vibration plate (15) is flush with the top surface of the mounting plate (1) when the vibration motor (16) is not in operation.

7. The powder metallurgy feeding device according to claim 1, characterized in that: One end of the box body (3) away from the telescopic rod (6) is fixedly connected to a guide rod (13), and both ends of the guide rod (13) are in contact with the inner wall of the box body guide rail (2).

8. The powder metallurgy feeding device according to claim 1, characterized in that: The top of the box body (3) is fixedly connected with a feeding port (5).

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