Powder feeding device for powder metallurgy
By installing fixed cylinders and rotary blocks on the top of the powder feeding box of the powder metallurgy powder feeding device, the motor drives the rotary block to push the push plate and push rod to form reciprocating motion, the problem of uneven powder material when forming large diameter ring products in the powder metallurgy in the prior art is solved, and uniform powder entry and product yield is achieved.
Patent Information
- Application Number
- CN202422200239.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-09
AI Technical Summary
When forming large-diameter annular products, the existing powder metallurgy powder feeding devices lead to different weights of powder on the front and back sides of the storage chamber, resulting in inconsistent blanking volume and powder density in the annular mold, which in turn affects the product yield.
A powder metallurgy powder feeding device is designed. By installing a fixed cylinder on the top of the powder feeding box and installing components such as rotary blocks, push rods, push plates and springs in the fixed cylinder, the motor drives the rotation shaft to rotate, and the rotary blocks push the push plate downward, the spring compresses and restores deformation, so that the push rod forms a reciprocating movement in the powder feeding box, repeatedly hammers the powder to make it evenly enter the bottom abrasive.
Through the design of this device, the uniformity of the powder when entering the abrasive tool is improved, avoiding the problem of unevenness and significantly improving the product yield.
Smart Images
Figure CN223011891U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metallurgical powder feeding devices, and particularly relates to a powder metallurgy powder feeding device. Background Art
[0002] As is well known, powder metallurgy technology can manufacture complex-shaped parts with high dimensional accuracy in a shape very close to that of the product, which can significantly reduce the cutting cost. Therefore, powder metallurgy products are used in various industrial fields as various mechanical structures or their components. When forming large-diameter ring-shaped products by powder metallurgy at present, powder is input into a ring-shaped mold through a powder feeding device. Referring to Figure 4 , in the traditional powder feeding device, the lower side of the material storage cavity is usually set as an opening, and its size is larger than the overall size of the ring-shaped product. Since the powder feeding device first contacts one side of the ring-shaped mold, the powder weights on the front and rear sides of the material storage cavity are different. The powder at the rear side of the material storage cavity is heavy and has a large pressure. Therefore, the blanking amounts and powder compactness on the front and rear sides in the ring-shaped mold are inconsistent, resulting in a large height difference between the front and rear of the formed product and easily generating defective products. Summary of the Utility Model
[0003] (1) Technical Problems to be Solved
[0004] In view of the deficiencies of the prior art, the utility model provides a powder metallurgy powder feeding device, which solves the problems mentioned in the above background art.
[0005] (2) Technical Solutions
[0006] To achieve the above object, the utility model provides the following technical solutions: A powder metallurgy powder feeding device includes a powder feeding box. A cavity is arranged inside the powder feeding box, and a powder outlet hole is opened at the bottom. A plurality of powder feeding pipes are connected to one side of the top of the powder feeding box. Connecting shafts are fixedly connected to both sides of the powder feeding box. A fixed cylinder is installed on the top of the powder feeding box. The top of the fixed cylinder is closed, and a through hole is arranged at the lower part. A support seat is installed on the top of the powder feeding box. A motor is installed on the top of the support seat. A rotating shaft is installed on the motor. A rotating block is installed on the rotating shaft. The rotating block is placed inside the fixed cylinder. A push plate is installed inside the fixed cylinder. A push rod is fixedly connected to the bottom of the push plate. The bottom of the push rod penetrates through the through hole and extends a certain distance below the bottom of the fixed cylinder. A spring is installed at the bottom of the push plate.
[0007] Further, the push rod is cylindrical, and the diameter of the through hole is equal to the diameter of the push rod.
[0008] Further, the fixed cylinder is cylindrical, and the inner diameter inside is larger than the diameter of the push rod. One end of the spring is fixedly connected to the bottom of the fixed cylinder, and the other end of the spring is fixedly connected to the push plate.
[0009] Further, the push plate is slidably connected to the fixed cylinder.
[0010] Furthermore, the rotating block is in the shape of a cuboid, and both sides are arc surfaces.
[0011] Furthermore, two connecting shafts are installed on the reciprocating driving structure to drive the powder feeding box to move reciprocally.
[0012] (III) Beneficial effects
[0013] Compared with the prior art, the present utility model provides a powder metallurgy powder feeding device, which has the following
[0014] beneficial effects:
[0015] In this powder metallurgy powder feeding device, by installing a fixed cylinder on the top of the powder feeding box, and installing components such as a rotating block, a push rod, a push plate and a spring on the fixed cylinder, when the motor drives the rotating shaft to rotate, the rotating block pushes the push plate to move downward, the spring compresses and restores its deformation, so that the push rod forms a reciprocating motion in the powder feeding box, and repeatedly hammers the processed powder downward, making the powder entering the bottom mold uniform, preventing the problem of unevenness, and improving the yield of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is an isometric structural schematic diagram of the present utility model;
[0017] Figure 2 is a bottom view structural schematic diagram of the present utility model;
[0018] Figure 3 is a left view structural schematic diagram of the present utility model;
[0019] Figure 4 is the present utility model Figure 2 is a sectional structural schematic diagram at A-A of the present utility model.
[0020] In the figure: 1. Powder feeding box; 2. Powder feeding pipe; 3. Connecting shaft; 4. Fixed cylinder; 5. Support seat; 6. Motor; 7. Rotating shaft; 8. Rotating block; 9. Push plate; 10. Push rod; 11. Spring; 12. Powder outlet hole. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0022] Please refer to Figures 1-4, a powder metallurgy powder feeding device of the present utility model, is installed on the operating table of a stamping machine body. It includes a powder feeding box 1. The inside of the powder feeding box 1 is provided with a cavity, and a powder outlet hole 12 is opened at the bottom. One side of the top of the powder feeding box 1 is connected with a plurality of powder feeding pipes 2, and each powder feeding pipe 2 is connected with a powder feeding component. Both sides of the powder feeding box 1 are fixedly connected with connecting shafts 3, and the two connecting shafts 3 are installed on a reciprocating driving structure to drive the powder feeding box 1 to make a reciprocating motion. A fixed cylinder 4 is installed on the top of the powder feeding box 1. The top of the fixed cylinder 4 is closed, and a through hole is provided in the lower part. A support seat 5 is installed on the top of the powder feeding box 1. A motor 6 is installed on the top of the support seat 5. A rotating shaft 7 is installed on the motor 6. A rotating block 8 is installed on the rotating shaft 7. The rotating block 8 is cuboid-shaped, and both sides are arc surfaces. The rotating block 8 is placed inside the fixed cylinder 4. A push plate 9 is installed inside the fixed cylinder 4. The push plate 9 is slidably connected with the fixed cylinder 4. A push rod 10 is fixedly connected to the bottom of the push plate 9. The push rod 10 is cylindrical, and the diameter of the through hole is equal to the diameter of the push rod 10. The bottom of the push rod 10 passes through the through hole and extends a certain distance below the bottom of the fixed cylinder 4. A spring 11 is installed at the bottom of the push plate 9. The fixed cylinder 4 is cylindrical, and the inner diameter inside is larger than the diameter of the push rod 10. One end of the spring 11 is fixedly connected to the bottom of the fixed cylinder 4, and the other end of the spring 11 is fixedly connected to the push plate 9.
[0023] In summary, when using this powder metallurgy powder feeding device, install the device on the reciprocating driving structure and place it on the operating table of the stamping machine body. Connect the powder feeding pipe 2 with the powder feeding component. Driven by the reciprocating driving structure, the device moves back and forth on the operating table and coordinates with the stamping rod equipped with a mold. The powder enters the powder feeding box 1 through the powder feeding pipe 2 and enters the bottom mold through the powder outlet hole 12 below. At the same time, the motor drives the rotating shaft 7 to rotate, and the rotating shaft 7 drives the rotating block 8 to rotate, reciprocally pushing the push plate 9, so that the push rod 10 squeezes the powder, making the powder entering the lower mold uniform and improving the product yield.
[0024] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A powder metallurgy powder feeding device, comprising a powder feeding box (1), characterized in that: The powder delivery box (1) is provided with a cavity inside and a powder outlet hole (12) is opened at the bottom. A plurality of powder delivery tubes (2) are connected to one side of the top of the powder delivery box (1). Both sides of the powder delivery box (1) are fixedly connected with connecting shafts (3). A fixed cylinder (4) is installed on the top of the powder delivery box (1). The top of the fixed cylinder (4) is closed and a through hole is provided at the bottom. A support seat (5) is installed on the top of the powder delivery box (1). A motor (6) is installed on the top of the support seat (5). A rotating shaft (7) is installed on the motor (6). A rotating block (8) is installed on the rotating shaft (7). The rotating block (8) is placed inside the fixed cylinder (4). A push plate (9) is installed inside the fixed cylinder (4). A push rod (10) is fixedly connected to the bottom of the push plate (9). The bottom of the push rod (10) passes through the through hole and extends a certain distance from the bottom of the fixed cylinder (4). A spring (11) is installed at the bottom of the push plate (9).
2. A powder metallurgy powder feeding device according to claim 1, characterized in that: The push rod (10) is cylindrical, and the diameter of the through hole is equal to the diameter of the push rod (10).
3. A powder metallurgy powder feeding device according to claim 1, characterized in that: The fixed cylinder (4) is cylindrical and has an inner diameter greater than the diameter of the push rod (10). One end of the spring (11) is fixedly connected to the bottom of the fixed cylinder (4), and the other end of the spring (11) is fixedly connected to the push plate (9).
4. A powder metallurgy powder feeding device according to claim 1, characterized in that: The push plate (9) is connected to the fixed cylinder (4) by sliding.
5. The powder metallurgy powder feeding device according to claim 1, characterized in that: The rotating block (8) is in the shape of a rectangular parallelepiped, and both sides thereof are arc surfaces.
6. A powder metallurgy powder feeding device according to claim 1, characterized in that: The two connecting shafts (3) are mounted on a reciprocating drive structure to drive the powder delivery box (1) to perform reciprocating motion.