Powder feeding device for powder metallurgy

Abstract

The utility model discloses a powder feeding device for powder metallurgy, which comprises a longitudinal back plate, a feeding tank and a die-casting die body, the feeding tank is positioned right above the die-casting die body during feeding, and a longitudinal elastic guide component is arranged on the surface of the feeding tank. According to the die-casting die, the longitudinal lifting part and the transverse sealing assembly are arranged, the longitudinal lifting part lifts the feeding tank, so that the sealing plate of the transverse sealing assembly on the feeding tank is attached to the die-casting die body, then the transverse sealing assembly is moved to open the feeding port of the feeding tank, and powder falls on the die-casting die body through gravity; and after the die-casting die body is filled with the powder, the sealing plate is moved reversely, so that the powder on the die-casting die body is flattened while the feeding port of the feeding tank is sealed again, and the effects that the die-casting die body is filled in a balanced mode, and the powder on the die-casting die body is flattened and is not prone to being scattered are achieved.

Description

Technical Field

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

[0002] Powder metallurgy is a new type of metal product manufacturing technology. It mainly manufactures metal into powder, then puts the powder on manufacturing equipment, and presses it through a die-casting machine. After die-casting, the powder metallurgy product is further processed and formed through some sintering processes.

[0003] In existing powder metallurgy products, when adding powder, after the mold is removed from the die-casting equipment, the powder feeding pipe needs to be moved so that it extends to the die-casting mold opening for powder feeding. The pipe orifice of the powder feeding pipe is much smaller than the mold opening. After such addition, the powder feeding is not uniform enough and is also prone to scattering. Therefore, it needs to be upgraded and improved.

[0004] Therefore, how to provide a powder metallurgy powder feeding device is an urgent problem for those skilled in the art to solve. Summary of the Utility Model

[0005] An object of the utility model is to provide a powder metallurgy powder feeding device, and the utility model solves the problems that the powder feeding of the feeding device in existing powder metallurgy products is not uniform and is prone to scattering.

[0006] A powder metallurgy powder feeding device according to an embodiment of the utility model includes a longitudinal backboard, a feeding tank, and a die-casting mold body. When feeding, the feeding tank is located directly above the die-casting mold body. A longitudinal elastic guiding component is arranged on the surface of the feeding tank, and a longitudinal lifting member is fixed on the side of the longitudinal elastic guiding component. The longitudinal lifting member is arranged on the longitudinal backboard; a transverse sealing component is horizontally arranged at a position on the side of the feeding tank away from the longitudinal lifting member.

[0007] Both the longitudinal backboard and the die-casting mold body are arranged on a die-casting body, and the longitudinal backboard is installed on the die-casting body at a position above the die-casting mold body.

[0008] The longitudinal elastic guiding component includes two groups of longitudinal guide rods. The two groups of longitudinal guide rods are symmetrically arranged on the surface of the feeding tank. Guide blocks are movably sleeved on the surfaces of the longitudinal guide rods. Synchronous movement is achieved by connecting the two groups of guide blocks through an arc-shaped rod. A driving plate is arranged on the lower surface of the guide block. A fixing block is arranged at a position directly below the longitudinal guide rod on the side of the feeding tank. A spring member is arranged on the top of the fixing block. One end of the spring member is arranged at the bottom end surface of the longitudinal guide rod. The lower surface of the fixing block is attached to the bottom of the inner wall of the driving plate.

[0009] A lifting guide rod is fixed to the top of the fixed block. A lifting hole is formed in the longitudinal guide rod, and the lifting guide rod is movably disposed inside the lifting hole. When the fixed block fits against the bottom inner wall of the driving plate, the guide block is located at the middle position of the lifting guide rod.

[0010] The longitudinal lifting member includes a lifting plate fixed to the side of the driving plate. The other end of the lifting plate is movably sleeved with a lifting track installed on the longitudinal back plate. A longitudinal telescopic cylinder is provided at the top of the lifting plate on the surface of the longitudinal back plate and above the lifting track.

[0011] The transverse sealing assembly includes a transverse plate and a sealing plate. A guide groove is formed in the transverse plate, and a transverse guide rod is movably disposed inside the guide groove. The bottom end of the transverse guide rod is fixed to the top of the sealing plate. A transverse telescopic cylinder is provided on the upper surface of the transverse plate on the side of the transverse guide rod away from the feeding tank. The sealing plate is movably attached to the lower feeding port of the feeding tank.

[0012] The beneficial effects of the present utility model are as follows:

[0013] By providing a longitudinal lifting member and a transverse sealing assembly, the longitudinal lifting member lifts the feeding tank, causing the sealing plate of the transverse sealing assembly on the feeding tank to fit against the die-casting mold body. Then, the transverse sealing assembly is moved to open the feeding port of the feeding tank, and the powder falls onto the die-casting mold body by gravity. After the die-casting mold body is filled, the sealing plate is moved in the reverse direction to seal the feeding port of the feeding tank again while leveling the powder on the die-casting mold body, achieving the effects of evenly filling the die-casting mold body and leveling the powder on the die-casting mold body to prevent it from easily scattering, and solving the problems of uneven powder feeding and easy scattering in the existing powder feeding devices for powder metallurgy products.

[0014] By providing a longitudinal elastic guiding assembly, after the feeding tank moves downward, there will be a height difference equal to the thickness of the sealing plate after the transverse sealing assembly opens the feeding port of the feeding tank. At this time, the feeding tank is pushed downward by the longitudinal elastic guiding assembly so that the feeding port fits against the die-casting mold body, thus preventing powder from overflowing during feeding. Description of the Drawings

[0015] The drawings are used to provide a further understanding of the present utility model and form a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0016] Figure 1 is the overall three-dimensional flow chart of a powder metallurgy powder feeding device proposed by the present utility model.

[0017] Figure 2A top - view flow chart of a powder - metallurgy powder - feeding device proposed by the present utility model.

[0018] Figure 3 A side - view cross - section flow chart of a powder - metallurgy powder - feeding device proposed by the present utility model.

[0019] Figure 4 A cross - section flow chart of the position of the spring member in a powder - metallurgy powder - feeding device proposed by the present utility model.

[0020] Figure 5 A three - dimensional flow chart of one side of the connection state of the feed tank, the longitudinal elastic guiding component, and the transverse sealing component in a powder - metallurgy powder - feeding device proposed by the present utility model.

[0021] Figure 6 A three - dimensional flow chart of the other side of the connection state of the feed tank, the longitudinal elastic guiding component, and the transverse sealing component in a powder - metallurgy powder - feeding device proposed by the present utility model.

[0022] Reference numerals in the attached drawings: 1, longitudinal back plate; 2, feed tank; 3, die - casting mold body; 4, longitudinal elastic guiding component; 5, longitudinal lifting member; 6, transverse sealing component; 7, longitudinal guide rod; 8, guide block; 9, driving plate; 10, fixed block; 11, spring member; 12, lifting guide rod; 13, lifting hole; 14, lifting plate; 15, lifting track; 16, longitudinal telescopic cylinder; 17, transverse plate; 18, sealing plate; 19, guide groove; 20, transverse guide rod; 21, transverse telescopic cylinder. Detailed implementation manners

[0023] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic way, so they only show the components related to the present utility model.

[0024] Embodiment 1

[0025] Reference Figure 1 、 Figure 2 、 Figure 4 and Figure 5, including a longitudinal backboard 1, a feeding tank 2 and a die-casting mold body 3. The longitudinal backboard 1 and the die-casting mold body 3 are both arranged on the die-casting body. Moreover, the longitudinal backboard 1 is installed above the die-casting mold body 3 on the die-casting body. When the feeding tank 2 feeds, it is located directly above the die-casting mold body 3. A longitudinal elastic guiding component 4 is arranged on the surface of the feeding tank 2, mainly to push the feeding tank 2 downward so that the feeding port of the feeding tank 2 fits on the die-casting mold body 3 after the sealing plate 18 is moved away, avoiding powder overflow during feeding. Specifically, the longitudinal elastic guiding component 4 includes two groups of longitudinal guide rods 7. The two groups of longitudinal guide rods 7 are symmetrically arranged on the surface of the feeding tank 2. The longitudinal guide rods 7 are provided with engaging grooves on the side, and the engaging grooves are arranged along the longitudinal guide rods 7. A guide block 8 is movably sleeved on the surface of the longitudinal guide rods 7. The shape of the guide block 8 matches the outer shape of the longitudinal guide rods 7, and the guide block 8 movably fits inside the longitudinal guide groove 19 and the engaging groove. The two guide blocks 8 are connected by an arc-shaped rod to achieve synchronous movement, and the synchronous movement can maintain the balance of the feeding tank 2 during movement. A driving plate 9 is arranged on the lower surface of the guide block 8. A fixing block 10 is arranged on the side of the feeding tank 2 directly below the longitudinal guide rod 7. A spring member 11 is arranged on the top of the fixing block 10. The elastic member applies a force to the feeding tank 2 so that it can push the feeding tank 2 downward after the sealing plate 18 moves away from the feeding port. One end of the spring member 11 is arranged at the bottom end surface of the longitudinal guide rod 7. The lower surface of the fixing block 10 fits on the bottom of the inner wall of the driving plate 9. A lifting guide rod 12 is fixed on the top of the fixing block 10 for positioning the spring member 11 so that the spring member 11 is not easily bent during contraction. A lifting hole 13 is opened on the longitudinal guide rod 7, and the lifting guide rod 12 moves inside the lifting hole 13. When the fixing block 10 fits on the bottom of the inner wall of the driving plate 9, the guide block 8 is at the middle position of the lifting guide rod 12, and this state is in a balanced state. It should be noted that during feeding, the feeding tank 2 is squeezed upward. At this time, the fixing block 10 is separated from the driving plate 9. Then, after the sealing plate 18 moves away from the feeding port of the feeding tank 2, the spring member 11 will push the fixing block 10 downward, and the downward movement of the fixing block 10 drives the feeding port of the feeding tank 2 to move downward and fit on the upper surface of the die-casting mold body 3, avoiding powder overflow during feeding.

[0026] Embodiment 2

[0027] Reference Figures 1-3, a longitudinal lifting member 5 is fixed to the side of the longitudinal elastic guiding assembly 4. The longitudinal lifting member 5 is arranged on the longitudinal back plate 1. The longitudinal lifting member 5 includes a lifting plate 14. The lifting plate 14 is fixed to the side of the driving plate 9. The other end of the lifting plate 14 is movably sleeved with a lifting track 15. The lifting plate 14 is horizontally fixed to the driving plate 9. In this way, the up and down movement is not likely to affect the powder feeding of the feeding tank 2. The lifting track 15 is installed on the longitudinal back plate 1. A longitudinal telescopic cylinder 16 is arranged at the top of the lifting plate 14. The longitudinal telescopic cylinder 16 is arranged on the surface of the longitudinal back plate 1 and is located above the lifting track 15. During operation, when the longitudinal telescopic cylinder 16 moves downward, it will push the feeding tank 2, the longitudinal elastic guiding assembly 4 and the transverse sealing assembly 6 to move downward together until the sealing plate 18 fits on the upper surface of the die-casting mold body 3.

[0028] Embodiment 3

[0029] Reference Figure 1 、 Figure 5 and Figure 6 , a transverse sealing assembly 6 is horizontally arranged at a position on the side of the feeding tank 2 far from the longitudinal lifting member 5. The transverse sealing assembly 6 includes a transverse plate 17 and a sealing plate 18. The transverse plate 17 is used for installing a transverse telescopic cylinder 21 and a transverse guide rod 20. A guide groove 19 is formed on the transverse plate 17. The guide groove 19 guides the transverse guide rod 20 to reciprocate along the guide groove 19. The transverse guide rod 20 is movably arranged inside the guide groove 19. The bottom end of the transverse guide rod 20 is fixed to the top of the sealing plate 18. A transverse telescopic cylinder 21 is arranged on the upper surface of the transverse plate 17 on the side of the transverse guide rod 20 away from the feeding tank 2. The sealing plate 18 is movably attached to the lower feeding port of the feeding tank 2. When the feeding tank 2 drops and is pressed, at this time, the fixed block 10 is far from the driving plate 9. In this way, when the transverse telescopic cylinder 21 contracts, it will drive the sealing plate 18 to move away from the feeding port of the feeding tank 2, and then the powder will fall onto the die-casting mold body 3 by gravity. In this way, the falling powder fills the die-casting mold body 3 to make the feeding uniform. Then, the sealing plate 18 is moved in the reverse direction, so that when the sealing plate 18 seals the feeding port of the feeding tank 2, it will push flat the powder on the die-casting mold body 3, thereby avoiding the situation of powder overflow and being higher than the die-casting mold body 3.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A powder metallurgy powder feeding device, characterized in that: The die-casting mold body (3) comprises a longitudinal back plate (1), a feeding tank (2) and a die-casting mold body (3); the feeding tank (2) is located directly above the die-casting mold body (3) when feeding; a longitudinal elastic guide component (4) is arranged on the surface of the feeding tank (2); a longitudinal lifting member (5) is fixed on the side of the longitudinal elastic guide component (4); and the longitudinal lifting member (5) is arranged on the longitudinal back plate (1); a transverse sealing component (6) is horizontally arranged on the side of the feeding tank (2) away from the longitudinal lifting member (5).

2. A powder metallurgy powder feeding device according to claim 1, characterized in that: The longitudinal back plate (1) and the die-casting mold body (3) are both arranged on the die-casting body, and the longitudinal back plate (1) is installed on the die-casting body at a position above the die-casting mold body (3).

3. A powder metallurgy powder feeding device according to claim 2, characterized in that: The longitudinal elastic guide assembly (4) comprises two groups of longitudinal guide rods (7), the two groups of longitudinal guide rods (7) are symmetrically arranged on the surface of the feeding tank (2), the surface of the longitudinal guide rods (7) is movably sleeved with guide blocks (8), the two groups of guide blocks (8) are connected by arc rods to achieve synchronous movement, a driving plate (9) is arranged on the lower surface of the guide block (8), a fixed block (10) is arranged on the side of the feeding tank (2) directly below the longitudinal guide rods (7), a spring member (11) is arranged on the top of the fixed block (10), one end of the spring member (11) is arranged on the bottom end surface of the longitudinal guide rods (7), and the lower surface of the fixed block (10) is in contact with the bottom of the inner wall of the driving plate (9).

4. A powder metallurgy powder feeding device according to claim 3, characterized in that: A lifting guide rod (12) is fixed on the top of the fixed block (10), a lifting hole (13) is opened on the longitudinal guide rod (7), and the lifting guide rod (12) moves inside the lifting hole (13). When the fixed block (10) is attached to the bottom of the inner wall of the driving plate (9), the guide block (8) is located in the middle of the lifting guide rod (12).

5. A powder metallurgy powder feeding device according to claim 4, characterized in that: The longitudinal lifting member (5) comprises a lifting plate (14), the lifting plate (14) being fixed on the side of the driving plate (9), the other end of the lifting plate (14) being movably sleeved with a lifting track (15), the lifting track (15) being mounted on the longitudinal back plate (1), the top of the lifting plate (14) being provided with a longitudinal telescopic cylinder (16), the longitudinal telescopic cylinder (16) being arranged on the surface of the longitudinal back plate (1), and the longitudinal telescopic cylinder (16) being located above the lifting track (15).

6. A powder metallurgy powder feeding device according to claim 5, characterized in that: The transverse sealing assembly (6) comprises a transverse plate (17) and a sealing plate (18); a guide groove (19) is provided on the transverse plate (17); a transverse guide rod (20) is movably disposed inside the guide groove (19); the bottom end of the transverse guide rod (20) is fixed to the top of the sealing plate (18); a transverse telescopic cylinder (21) is disposed on the side of the transverse guide rod (20) away from the feeding tank (2); the transverse telescopic cylinder (21) is disposed on the upper surface of the transverse plate (17); and the sealing plate (18) is movably fitted to the feeding port at the lower end of the feeding tank (2).

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