Automatic feeding mechanism for powder injection molding product machining

The design of the connecting roller structure and feeding assembly connected by the rotating shaft solves the problems of large space occupation and high manual operation cost of automatic powder feeding mechanism in powder injection molding process, realizes efficient and space-saving automatic feeding, and improves production efficiency and stability.

CN223970856UActive Publication Date: 2026-03-06SHENZHEN YIBI PRECISION TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

In existing powder injection molding processes, automatic powder feeding mechanisms occupy a large space or rely on manual operation, resulting in low space utilization and high cost and low efficiency.

Method used

The connecting roller structure, which connects the first and second rotating shafts, uses a servo motor to drive the rotating fan blades and limit plate design to achieve independent material conveying and space saving. Combined with the feeding assembly and sealing structure, it ensures stability and efficiency.

Benefits of technology

It enables independent conveying of raw materials, saves space, improves production efficiency, reduces labor costs, and enhances the practicality of automatic feeding mechanisms for powder injection molding products.

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Abstract

The utility model discloses an automatic feeding mechanism for powder injection molding product processing, which belongs to the technical field of powder injection molding product processing and comprises a first rotating shaft, and one side of the outer surface of the first rotating shaft is slidably connected with a second rotating shaft. A first external thread or a second external thread is arranged at one end of the outer surface of the first rotating shaft and one end of the outer surface of the second rotating shaft correspondingly, and the first external thread and the second external thread are connected with a first connecting belt or a second connecting belt in a matched and meshed mode correspondingly. The other end of the first connecting belt and the other end of the second connecting belt are connected to the output ends of different servo motors in a meshed mode, a connecting roller is fixedly connected to the other end of the outer surface of the second rotating shaft, and first rotating fan blades or second rotating fan blades are fixedly connected to the outer surfaces of the first rotating shaft and the connecting roller. By means of the device, even if multiple raw materials are supplied, the raw materials do not affect one another, mutual mixing pollution of the different raw materials is avoided, and the production space is saved.
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Description

Technical Field

[0001] This invention belongs to the field of powder injection molding product processing technology, specifically relating to an automatic feeding mechanism for powder injection molding product processing. Background Technology

[0002] Powder injection molding is a new type of parts forming technology that combines traditional powder metallurgy technology with modern plastic injection molding process. Its biggest feature is that it can directly manufacture parts with the final shape, minimizing machining and saving raw materials, and solving the problem of difficult forming of complex shaped products that has plagued the powder metallurgy field for many years.

[0003] Automatic powder feeding mechanisms are an indispensable part of the powder injection molding process. They can deliver materials to the mixing chamber of the injection molding equipment, ensuring uniform mixing of powder materials and binders, thereby improving product quality and production efficiency. However, in practice, automatic powder feeding mechanisms are mostly spiral agitators or manual handling. But the applicable space in the factory is limited. If there are too many spiral agitators, it will affect the space utilization rate of the factory. If it is manual handling, it will consume too much manpower, cost too much, and be inefficient.

[0004] Therefore, there is a need for an automatic feeding mechanism for powder injection molding products to solve the problems existing in the prior art.

[0005] new content

[0006] The purpose of this invention is to provide an automatic feeding mechanism for processing powder injection molded products, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an automatic feeding mechanism for powder injection molding product processing, comprising a first rotating shaft (1), a second rotating shaft (2) slidably connected to one side of the outer surface of the first rotating shaft (1), a first external thread (101) or a second external thread (201) respectively provided at one end of the outer surface of the first rotating shaft (1) and the second rotating shaft (2), a first connecting belt (102) or a second connecting belt (202) respectively engaging with the first external thread (101) and the second external thread (201), the other ends of the first connecting belt (102) and the second connecting belt (202) respectively engaging with the output ends of different servo motors, and a connecting roller (204) fixedly connected to the other end of the outer surface of the second rotating shaft (2), a first rotating fan blade (104) or a second rotating fan blade (205) fixedly connected to the outer surfaces of the first rotating shaft (1) and the connecting roller (204), and a shell (3) provided on the outer surface of the second rotating fan blade (205).

[0008] It should be noted in the scheme that the outer surfaces of the first rotating shaft (1) and the second rotating shaft (2) are respectively fixedly connected to the first limiting plate (103) or the second limiting plate (203) at both ends of the first connecting strip (102) or the second connecting strip (202).

[0009] It is worth noting that the cross-sectional area of ​​the connecting roller (204) is larger than that of the second rotating shaft (2), and the inner surface of the connecting roller (204) is slidably connected to the outer surface of the first rotating fan blade (104).

[0010] Furthermore, it should be noted that a sealing disc (5) is provided on the outer surface of the connecting roller (204) on one side of the outer shell (3).

[0011] In a preferred embodiment, the outer shell (3) has an inlet (301) on the upper side of one end and an outlet (302) on the lower side of the other end.

[0012] In a preferred embodiment, the connecting roller (204) has a groove (206) at one end, and a plurality of fixed shafts (207) are fixedly connected to both sides of the groove (206) of the connecting roller (204), and a feeding assembly (4) is provided on the outside of the groove (206) of the connecting roller (204).

[0013] In a preferred embodiment, the feeding assembly (4) includes symmetrical fixing members (401), which are respectively fixedly connected to the two ends of the groove (206) on the outer surface of the connecting roller (204). The symmetrical fixing members (401) are provided with sliding grooves (402) in the middle of opposite sides. The symmetrical sliding grooves (402) are respectively fitted with the protruding guides (404) fixedly connected to both ends of the sliding plate (403). The sliding plate (403) is provided with a feeding pipe (405) on one side.

[0014] In a preferred embodiment, both the symmetrical sliding groove (402) and the raised guide (404) are T-shaped, and the inner surfaces of the symmetrical sliding groove (402) are respectively fitted and slidably connected to the outer surfaces of the corresponding raised guide (404).

[0015] Compared with the prior art, the automatic feeding mechanism for powder injection molding product processing provided by this invention has at least the following beneficial effects:

[0016] (1) The first or second rotating fan blades, which are fixedly connected to the outer surfaces of the connecting rollers at one end of the first and second rotating shafts respectively, can be driven by a servo motor to rotate and feed materials. The connecting rollers fixedly connected to one end of the second rotating shaft are located on the outer surface of the first rotating shaft. The two work without affecting each other, which can avoid the mixing and contamination of different raw materials and save space. Based on this principle, the outer surface of the connecting rollers fixedly connected to one end of the second rotating shaft can still be fitted with connecting rollers. Thus, based on this principle and structure, more types of raw materials can be transported at one time. The length of the connecting rollers fixedly connected to one end of the second rotating shaft can be freely adjusted, which can facilitate the supply of different raw materials required at different locations, save space and improve efficiency.

[0017] (2) The feeding assembly can maintain the position of feeding the material inside the connecting roller while the connecting roller rotates, thereby increasing its stability and thus increasing the practicality of the automatic feeding mechanism for powder injection molding product processing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the front structure of this novel invention;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention. Figure 2 ;

[0021] Figure 4 This is a schematic cross-sectional view of the feeding assembly of this novel invention.

[0022] In the figure: 1. First rotating shaft; 101. First external thread; 102. First connecting band; 103. First limiting plate; 104. First rotating fan blade; 2. Second rotating shaft; 201. Second external thread; 202. Second connecting band; 203. Second limiting plate; 204. Connecting roller; 205. Second rotating fan blade; 206. Groove; 207. Fixed shaft; 3. Outer shell; 301. Feed inlet; 302. Discharge outlet; 4. Feeding assembly; 401. Fixing component; 402. Sliding groove; 403. Sliding plate; 404. Raised guide; 405. Feeding pipe; 5. Sealing disc. Detailed Implementation

[0023] The present invention will be further described below with reference to embodiments.

[0024] Please see Figure 1-4This invention provides an automatic feeding mechanism for powder injection molding product processing, comprising: a first rotating shaft 1, a second rotating shaft 2 slidably connected to one side of the outer surface of the first rotating shaft 1, a first external thread 101 or a second external thread 201 respectively provided at one end of the outer surface of the first rotating shaft 1 and the second rotating shaft 2, a first connecting belt 102 or a second connecting belt 202 respectively engaging with the first external thread 101 and the second external thread 201 respectively, the other ends of the first connecting belt 102 and the second connecting belt 202 respectively engaging with the output ends of different servo motors, and a connecting roller 204 fixedly connected to the other end of the outer surface of the second rotating shaft 2, a first rotating fan blade 104 or a second rotating fan blade 205 fixedly connected to the outer surface of the first rotating shaft 1 and the connecting roller 204, and a housing 3 provided on the outer surface of the second rotating fan blade 205.

[0025] Further as Figure 1 As shown, it is worth noting that the outer surfaces of the first rotating shaft 1 and the second rotating shaft 2 are respectively fixedly connected to the first limiting plate 103 or the second limiting plate 203 at both ends of the first connecting belt 102 or the second connecting belt 202. The first limiting plate 103 or the second limiting plate 203 restricts the position and movement trajectory of the first connecting belt 102 or the second connecting belt 202 on the outer surfaces of the first rotating shaft 1 and the second rotating shaft 2.

[0026] Further as Figure 1 and Figure 2 As shown, it is worth noting that the cross-sectional area of ​​the connecting roller 204 is larger than that of the second rotating shaft 2, and the inner surface of the connecting roller 204 is slidably connected to the outer surface of the first rotating fan blade 104. By adjusting the position and shape of the connecting roller 204, the raw material of the connecting roller 204 can be limited, and the rotation of the second rotating fan blade 205 fixedly connected to its outer surface can be driven. At the same time, the operation does not affect each other, thus improving efficiency and saving space.

[0027] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that a sealing disc 5 is provided on the outer surface of the connecting roller 204 on one side of the outer casing 3. The sealing disc 5 increases the airtightness of the outer casing 3.

[0028] This solution has the following working process: material is fed into the connecting roller 204 through the feed pipe 405 and into the outer casing 3 through the feed port 301. Then, the servo motor that controls the rotation of the first rotating shaft 1 and the second rotating shaft 2 is turned on, which drives the first rotating shaft 1 and the second rotating shaft 2, which in turn drives the first rotating shaft 1 and the connecting roller 204 to rotate, which in turn drives the first rotating fan blade 104 or the second rotating fan blade 205 to rotate, thus independently conveying the material entering through the feed pipe 405 and the material entering through the feed port 301.

[0029] According to the above working process, the first limiting plate 103 or the second limiting plate 203 restricts the position and movement trajectory of the first connecting belt 102 or the second connecting belt 202 on the outer surface of the first rotating shaft 1 and the second rotating shaft 2. The position and shape of the connecting roller 204 can limit the material of the connecting roller 204 and drive the rotation of the second rotating fan blade 205 fixedly connected to its outer surface. At the same time, the work does not affect each other, improving efficiency and saving space. The sealing disc 5 increases the airtightness of the outer shell 3.

[0030] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the upper side of one end of the outer casing 3 is provided with a feed inlet 301, and the lower side of the other end of the outer casing 3 is provided with a discharge outlet 302. The feed inlet 301 and discharge outlet 302 of the outer casing 3 facilitate the operation of the outermost feeding mechanism.

[0031] Further as Figure 4 As shown, it is worth noting that one end of the connecting roller 204 is provided with a groove 206, and several fixed shafts 207 are fixedly connected to both sides of the connecting roller 204 in the groove 206. The connecting roller 204 is provided with a feeding assembly 4 outside the groove 206. The groove 206 provided in the connecting roller 204 can ensure the entry of raw materials, and the several fixed shafts 207 can ensure the integrity of the connecting roller 204.

[0032] Further as Figure 4 As shown, it is worth noting that the feeding assembly 4 includes symmetrical fixing members 401, which are respectively fixedly connected to the two ends of the groove 206 on the outer surface of the connecting roller 204. The symmetrical fixing members 401 are provided with sliding grooves 402 in the middle of opposite sides. The symmetrical sliding grooves 402 respectively fit into the protruding guides 404 that are fixedly connected to both ends of the sliding plate 403. A feeding pipe 405 is provided on one side of the sliding plate 403. Through the feeding assembly 4, the feeding position inside the connecting roller 204 can be maintained while the connecting roller 204 rotates, thereby increasing its stability and increasing the practicality of the automatic feeding mechanism for powder injection molding product processing.

[0033] Further as Figure 4 As shown, it is worth noting that both the symmetrical sliding groove 402 and the raised guide 404 are T-shaped, and the inner surface of the symmetrical sliding groove 402 is respectively fitted and slidably connected to the outer surface of the corresponding raised guide 404. The symmetrical sliding groove 402 restricts the positional movement trajectory of the raised guide 404, i.e., the sliding plate 403 and the feed pipe 405.

[0034] In summary: Material is fed into the connecting roller 204 through the feed pipe 405 and into the outer casing 3 through the feed port 301. Then, the servo motor controlling the rotation of the first rotating shaft 1 and the second rotating shaft 2 is activated, driving both the first rotating shaft 1 and the connecting roller 204 to rotate, which in turn drives either the first rotating fan blade 104 or the second rotating fan blade 205 to rotate. This allows for independent conveying of the material entering through the feed pipe 405 and the feed port 301, facilitating convenient feeding through the feed port 301 and the discharge port 302 of the outer casing 3. The operation of the outermost feeding mechanism ensures the entry of raw materials through the groove 206 provided on the connecting roller 204, and the integrity of the connecting roller 204 is ensured through several fixed shafts 207. The feeding assembly 4 can maintain the feeding position inside the connecting roller 204 while the connecting roller 204 is rotating, thereby increasing its stability and increasing the practicality of the automatic feeding mechanism for powder injection molding product processing. The symmetrical sliding groove 402 restricts the positional movement trajectory of the protruding guide 404, i.e., the sliding plate 403 and the feeding pipe 405.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An automatic feed mechanism for powder injection molding product processing, comprising a first rotating shaft (1), characterized in that: The outer surface of the first rotating shaft (1) is slidably connected with a second rotating shaft (2), the outer surface of the first rotating shaft (1) and the second rotating shaft (2) is respectively provided with a first external thread (101) or a second external thread (201), the first external thread (101) and the second external thread (201) are respectively engaged with a first connecting belt (102) or a second connecting belt (202), the other end of the first connecting belt (102) and the second connecting belt (202) is respectively engaged with the output end of a different servo motor, and the outer surface of the second rotating shaft (2) is fixedly connected with a connecting roller (204), the outer surface of the first rotating shaft (1) and the connecting roller (204) is fixedly connected with a first rotating fan blade (104) or a second rotating fan blade (205), and the outer surface of the second rotating fan blade (205) is provided with an outer shell (3).

2. The automatic powder feeding mechanism for powder injection molding product processing according to claim 1, characterized in that: The outer surface of the first rotating shaft (1) and the second rotating shaft (2) is respectively fixedly connected with a first limiting plate (103) or a second limiting plate (203) at both ends of the first connecting belt (102) or the second connecting belt (202).

3. The automatic powder feeding mechanism for powder injection molding product processing according to claim 1, characterized in that: The cross-sectional area of the connecting roller (204) is greater than that of the second rotating shaft (2), and the inner surface of the connecting roller (204) is slidably connected with the outer surface of the first rotating fan blade (104).

4. The automatic powder feeding mechanism for powder injection molding product processing according to claim 1, characterized in that: The outer surface of the connecting roller (204) is provided with a sealing disc (5) on one side of the outer shell (3).

5. The automatic powder feeding mechanism for powder injection molding product processing according to claim 1, characterized in that: One end of the outer shell (3) is provided with an inlet (301), and the other end of the outer shell (3) is provided with an outlet (302).

6. The automatic powder feeder according to claim 1, wherein: One end of the connecting roller (204) is provided with a groove (206), a plurality of fixed shafts (207) are fixedly connected to the connecting roller (204) on both sides of the groove (206), and the connecting roller (204) is provided with a feeding assembly (4) on the outside of the groove (206).

7. An automatic powder feeder for powder injection molding according to claim 6, wherein: The feeding assembly (4) comprises symmetrical fixing members (401), the fixing members (401) are fixedly connected to the outer surface of the connecting roller (204) on both ends of the groove (206), and the opposite sides of the fixing members (401) are provided with sliding grooves (402) in the middle, the sliding grooves (402) are respectively slidably connected with protruding guides (404) fixedly connected to both ends of a sliding plate (403), and one side of the sliding plate (403) is provided with a feeding pipe (405).

8. An automatic powder feeder for powder injection molding product processing according to claim 7, characterized in that: The sliding grooves (402) and the protruding guides (404) are T-shaped, and the inner surfaces of the sliding grooves (402) are respectively slidably connected with the outer surfaces of the corresponding protruding guides (404).