A powder-pressing magnetic core molding device

Abstract

This utility model discloses a powder-pressing magnetic core molding device, including an upper mold assembly, a sliding seat, a connecting rod, a lower mold assembly, and a platform. The upper mold assembly is located above the platform, and the sliding seat can slide along the platform. The upper mold assembly and the sliding seat are connected by a connecting rod. The upper mold assembly can move closer to or away from the platform, thereby driving the sliding seat to slide. The platform has a through hole. The lower mold assembly is installed at the bottom of the platform. The lower mold assembly includes a lower mold shell with a mold hole corresponding to the through hole. The sliding seat includes a powder storage tank with a powder discharge hole at the bottom, which connects to the lower end face of the sliding seat. This utility model allows the sliding seat to fill the mold hole with powder when the upper mold assembly rises, and the sliding seat to move away from below the upper mold assembly via the connecting rod when the upper mold assembly descends, while simultaneously scraping the powder in the mold hole. This significantly improves the continuity and efficiency of the operation.

Description

Technical Field

[0001] This utility model relates to the field of magnetic core production technology, and more specifically, to a powder-pressing magnetic core molding device. Background Technology

[0002] In the existing technology, the production of magnetic cores requires injecting the prepared powder into a mold and pressing the powder into a ring-shaped block by pressure. However, after the powder is injected into the mold, the excess powder on the top needs to be scraped off manually. When the powder is insufficient, it needs to be replenished to ensure that the weight of the pressed magnetic core is qualified. Such frequent operation results in low work efficiency and slow production speed. Therefore, a technical solution is needed to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art, improve the production speed of magnetic cores, and provide a powder-pressing magnetic core molding device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a powder pressing magnetic core forming device, including an upper mold assembly, a sliding seat, a connecting rod, a lower mold assembly, and a platform. The upper mold assembly is located above the platform, and the sliding seat can slide along the platform. The upper mold assembly and the sliding seat are connected by the connecting rod. The upper mold assembly can move closer to or further away from the platform, thereby driving the sliding seat to slide. The platform has a through hole. The lower mold assembly is installed at the bottom of the platform. The lower mold assembly includes a lower mold shell, and the lower mold shell has a mold hole that corresponds to the through hole. The sliding seat includes a powder storage tank, and the bottom of the powder storage tank has a powder discharge hole that communicates with the lower end face of the sliding seat.

[0006] Furthermore, it includes a first state and a second state. In the first state, the upper mold assembly is at its highest position, the sliding seat is located below the upper mold assembly, the powder discharge hole is connected to the through hole and the mold hole, and the powder in the powder storage tank enters the mold hole. In the second state, the upper mold assembly is at its lowest position, the upper mold assembly is pressed against the lower mold assembly, and the sliding seat is away from the through hole.

[0007] Furthermore, the lower mold assembly includes a lifting cylinder and a lifting block, the lifting block being at least partially located within the mold hole, and the lifting cylinder being able to drive the lifting block to push the magnetic core formed by pressing within the mold hole upwards.

[0008] Furthermore, including a third state, in which the upper end of the lifting block extends out of the upper end surface of the platform, the sliding seat abuts against the upper magnetic core of the lifting block, and the sliding seat is provided with a receiving groove, the receiving groove being located on the lower end surface of the sliding seat near the through hole.

[0009] Furthermore, the inner bottom of the mold hole is provided with a step, the lifting block includes a push rod and a push block, the push rod passes through the bottom of the lower mold shell, the push block is located inside the mold hole, and when the push block is located at the lowest end of the mold hole, the push block abuts against the step.

[0010] Furthermore, the sliding seat includes a powder inlet and a powder inlet channel. The powder inlet is connected to an external conveying pipe, and the powder inlet channel is inclined. The upper end of the powder inlet channel is connected to the powder inlet, and the lower end of the powder inlet channel is connected to the powder storage tank.

[0011] Furthermore, the sliding seat includes a baffle, which is located on the side of the powder storage tank away from the powder inlet, and the upper end of the baffle is higher than the upper edge of the portion of the powder inlet channel that connects to the powder storage tank.

[0012] Furthermore, the upper mold assembly includes a first connecting part, on which a first connecting rod is mounted; side plates are mounted on both sides of the platform, and the side plates are provided with guide grooves; the sliding seat is provided with a second connecting part, on which a second connecting rod is mounted; the second connecting rod is slidable along the guide groove; and the first connecting rod and the second connecting rod are connected by a connecting rod.

[0013] Furthermore, the sliding seat is provided with a groove located on the lower end face of the sliding seat. The groove communicates with the powder discharge hole. A shovel plate is installed in the groove. The shovel plate is inclined and includes a shovel end facing the powder discharge hole and abutting the upper end face of the platform.

[0014] The beneficial effects of this utility model are:

[0015] This invention utilizes the upper mold assembly to lift up the sliding seat to fill the mold hole with powder. When the upper mold assembly lowers, the connecting rod drives the sliding seat away from below the upper mold assembly, which can simultaneously scrape the powder in the mold hole. In conjunction with the lifting cylinder of the lower mold assembly, the pressed magnetic core is pushed out. The sliding seat returning to below the upper mold assembly can push the magnetic core out to complete the discharge. The continuous operation and efficiency are significantly improved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first state in this embodiment.

[0017] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0018] Figure 3 This is a schematic diagram of the second state in this embodiment.

[0019] Figure 4 This is a schematic diagram of the third state in this embodiment.

[0020] Reference numerals: 1. Upper mold assembly; 11. Press head; 111. Slot; 12. First connecting part; 121. First connecting rod; 2. Sliding seat; 21. Powder storage tank; 211. Powder drop hole; 22. Powder inlet; 221. Powder inlet channel; 23. Second connecting part; 24. Second connecting rod; 25. Baffle; 26. Receiving groove; 27. Groove; 28. Shovel plate; 281. Shovel end; 3. Connecting rod; 4. Lower mold assembly; 41. Lifting cylinder; 42. Lifting block; 421. Top rod; 4211. Top block; 43. Lower mold shell; 431. Mold hole; 4311. Step; 432. Insert block; 5. Platform; 51. Through hole; 52. Side plate; 521. Guide groove; 53. Guide rail; 101. Magnetic core. Detailed Implementation

[0021] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] like Figures 1-4As shown, this embodiment discloses a pressing device for magnetic cores, including an upper mold assembly 1, a sliding seat 2, a connecting rod 3, a lower mold assembly 4, and a platform 5. The platform 5 is a horizontally extending plate. The upper mold assembly 1 is located above the platform 5 and can be driven by a cylinder to move up and down. A pressing head 11 is installed at the lower end of the upper mold assembly 1. The pressing head 11 has a slot 111 inside. The shape of the end cross-section of the pressing head 11 is the shape of the magnetic core 101. The upper mold assembly 1 includes a first connecting part 12, on which a first connecting rod 121 is installed. Side plates 52 are installed on both sides of the platform 5. The side plates 52 have guide grooves 521. The extension direction of the guide grooves 521 is consistent with the length direction of the platform 5. The sliding seat 2 has a second connecting part 23, on which a second connecting rod 24 is installed. The two connecting rods 24 can slide along the guide groove 521. The two ends of the first connecting rod 121 and the second connecting rod 24 are rotatably connected by two connecting rods 3. The sliding seat 2 can slide along the length of the platform 5. The upper end surface of the platform 5 is provided with a guide rail 53, which extends along the length of the platform 5. The sliding seat 2 is slidably connected to the guide rail 53. The upper mold assembly 1 and the sliding seat 2 are connected by connecting rods 3. The upper mold assembly 1 can move closer to or further away from the platform 5, thereby driving the sliding seat 2 to slide. When the upper mold assembly 1 rises, the sliding seat 2 slides along the platform 5 into the lower part of the upper mold assembly 1. When the upper mold assembly 1 falls, the sliding seat 2 slides along the platform 5 away from the lower part of the upper mold assembly 1. The upper mold assembly 1 is driven by a power source to press and feed the powder, making the production process more continuous and efficient.

[0023] The platform 5 has a through hole 51. The lower mold assembly 4 is installed at the bottom of the platform 5. The lower mold assembly 4 includes a lower mold shell 43, which has a mold hole 431. A plug 432 is provided at the center of the mold hole 431. The plug 432 and the slot 111 of the pressure head 11 are inserted into each other during pressing to form the inner ring part of the magnetic core 101. The depth of the slot 111 is greater than the length of the plug 432. When the upper mold assembly 1 and the lower mold assembly 4 are pressed together, there is still a gap between the slot 111 and the plug 432. The mold hole 431 corresponds to the through hole 51. The sliding seat 2 includes a powder storage tank 21. The bottom of the powder storage tank 21 is provided with a powder discharge hole 211. The powder discharge hole 211 is connected to the lower end face of the sliding seat 2. When the sliding seat 2 gradually enters the lower part of the upper mold assembly 1, the powder in the powder storage tank 21 gradually enters the mold hole 431 through the powder discharge hole 211. It can gradually fill the mold hole 431 from one side, preventing too many gaps in the powder in the mold hole 431. The powder in the powder storage tank 21 can exert pressure on the falling powder, so that the powder can better fill the mold hole 431.

[0024] The sliding seat 2 includes a powder inlet 22 and a powder inlet channel 221. The powder inlet 22 is connected to an external conveying pipe. An external powder storage box is located above the sliding seat 2. The powder storage box and the powder inlet 22 are connected by a flexible corrugated pipe. The powder inlet channel 221 is inclined. The upper end of the powder inlet channel 221 is connected to the powder inlet 22, and the lower end of the powder inlet channel 221 is connected to the powder storage tank 21. The inclined powder inlet channel 221 allows the powder in the powder inlet 22 to flow better to the powder storage tank 21. When the powder in the powder storage tank 21 covers the powder inlet channel 221, the powder inlet channel 221 can be stopped from feeding, realizing the function of automatic powder feeding after the sliding seat 2 slides and drops powder.

[0025] More preferably, the sliding seat 2 includes a baffle 25, which is located on the side of the powder storage tank 21 away from the powder inlet 22. The upper end of the baffle 25 is higher than the upper edge of the part of the powder inlet channel 221 that connects to the powder storage tank 21. The baffle 25 blocks the side of the powder storage tank 21 away from the powder inlet 22 to prevent the powder in the powder storage tank 21 from falling out from the front end of the sliding seat 2, thus ensuring the function of the sliding seat 2 to automatically feed powder.

[0026] like Figure 2 As shown, the sliding seat 2 is provided with a groove 27, which is located on the lower end face of the sliding seat 2. The groove 27 is connected to the powder discharge hole 211. The groove 27 is equipped with a scraper plate 28, which can rotate. The scraper plate 28 is supported by a torsion spring and is inclined. The width of the scraper plate 28 is greater than the width or diameter of the mold hole 431. The scraper plate 28 includes a scraper end 281, which faces the powder discharge hole 211 and is attached to the upper end face of the platform 5. When the sliding seat 2 moves away from the lower part of the upper mold assembly 1 along the platform 5, the scraper end 281 scrapes off the excess powder in the upper part of the mold hole 431 along the upper end face of the platform 5, so that the powder in the mold hole 431 is flush with the upper end face of the platform 5, thus achieving the function of leveling the powder.

[0027] The lower mold assembly 4 includes a lifting cylinder 41 and a lifting block 42. The lifting block 42 is at least partially located inside the mold hole 431. The lifting cylinder 41 can drive the lifting block 42 to push the magnetic core 101, which is pressed and formed inside the mold hole 431, upward. The bottom of the mold hole 431 is provided with a step 4311. The lifting block 42 includes a push rod 421 and a top block 4211. The push rod 421 passes through the bottom of the lower mold shell 43. The top block 4211 is located inside the mold hole 431. The top block 4211 can slide along the mold hole 431. When the top block 4211 is located at the bottom of the mold hole 431, the top block 4211 abuts against the step 4311. The step 4311 limits the downward movement of the top block 4211 and can support the top block 4211 when the upper mold assembly 1 is pressed.

[0028] The device in this embodiment includes a first state, a second state, and a third state. In the first state, the upper mold assembly 1 is at its highest position, the sliding seat 2 is located below the upper mold assembly 1, the powder discharge hole 211 is connected to the through hole 51 and the mold hole 431, and the powder in the powder storage tank 21 enters the mold hole 431 for feeding. During the transition from the first state to the second state, the shovel plate 28 at the bottom of the sliding seat 2 can level the powder to ensure the amount of powder in the mold hole 431. In the second state, the upper mold assembly 1 is at its lowest position, the upper mold assembly 1 is pressed against the lower mold assembly 4, and the sliding seat 2 is away from the through hole 51. The third state exists during the process of returning from the second state to the first state. In the third state, the pressure head 11 leaves the mold hole 431, and the upper end of the lifting block 42 extends out of the upper end face of the platform 5. Before the sliding seat 2 covers the through hole 51, the lifting block 42 pushes the magnetic core 101 out of the through hole 51. The sliding seat 2 abuts against the upper end of the magnetic core 101 located on the lifting block 42. The sliding seat 2 is provided with a receiving groove 26, which is located on the lower end face of the sliding seat 2 near the through hole 51. The receiving groove 26 can prevent interference with the upper end of the lifting block 42 during the process of the sliding seat 2 pushing the magnetic core 101 away. When the magnetic core 101 leaves the range of the through hole 51, the lifting cylinder 41 drives the lifting block 42 to descend, and the powder of the sliding seat 2 can fill the mold hole 431.

[0029] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A powder-pressing magnetic core forming device, characterized in that, The assembly includes an upper mold assembly (1), a sliding seat (2), a connecting rod (3), a lower mold assembly (4), and a platform (5). The upper mold assembly (1) is located above the platform (5). The sliding seat (2) can slide along the platform (5). The upper mold assembly (1) and the sliding seat (2) are connected by the connecting rod (3). The upper mold assembly (1) can move closer to or further away from the platform (5), thereby causing the sliding seat (2) to slide. The platform (5) The lower mold assembly (4) is installed on the bottom of the platform (5) and has a through hole (51). The lower mold assembly (4) includes a lower mold shell (43) and has a mold hole (431) that corresponds to the through hole (51). The sliding seat (2) includes a powder storage tank (21) and has a powder drop hole (211) at the bottom of the powder storage tank (21). The powder drop hole (211) is connected to the lower end face of the sliding seat (2).

2. The powder-pressing magnetic core forming device according to claim 1, characterized in that, The system includes a first state and a second state. In the first state, the upper mold assembly (1) is at its highest position, the sliding seat (2) is located below the upper mold assembly (1), the powder discharge hole (211) is connected to the through hole (51) and the mold hole (431), and the powder in the powder storage tank (21) enters the mold hole (431). In the second state, the upper mold assembly (1) is at its lowest position, the upper mold assembly (1) is pressed against the lower mold assembly (4), and the sliding seat (2) is away from the through hole (51).

3. The powder-pressing magnetic core forming device according to claim 1, characterized in that, The lower mold assembly (4) includes a lifting cylinder (41) and a lifting block (42). The lifting block (42) is at least partially located inside the mold hole (431). The lifting cylinder (41) can drive the lifting block (42) to push the magnetic core (101) formed by compression inside the mold hole (431) upward.

4. The powder-pressing magnetic core forming device according to claim 3, characterized in that, Including the third state, in the third state, the upper end of the lifting block (42) extends out of the upper end surface of the platform (5), the sliding seat (2) abuts against the upper end magnetic core (101) of the lifting block (42), the sliding seat (2) is provided with a receiving groove (26), the receiving groove (26) is located on the lower end surface of the sliding seat (2) near the through hole (51).

5. The powder-pressing magnetic core forming device according to claim 3, characterized in that, The inner bottom of the mold hole (431) is provided with a step (4311). The lifting block (42) includes a push rod (421) and a top block (4211). The push rod (421) passes through the bottom of the lower mold shell (43). The top block (4211) is located inside the mold hole (431). When the top block (4211) is located at the lowest end of the mold hole (431), the top block (4211) abuts against the step (4311).

6. The powder-pressing magnetic core forming device according to claim 1, characterized in that, The sliding seat (2) includes a powder inlet (22) and a powder inlet channel (221). The powder inlet (22) is connected to an external conveying pipe. The powder inlet channel (221) is inclined. The upper end of the powder inlet channel (221) is connected to the powder inlet (22), and the lower end of the powder inlet channel (221) is connected to the powder storage tank (21).

7. The powder-pressing magnetic core forming device according to claim 6, characterized in that, The sliding seat (2) includes a baffle (25), which is located on the side of the powder storage tank (21) away from the powder inlet (22). The upper end of the baffle (25) is higher than the upper edge of the portion of the powder inlet channel (221) that connects to the powder storage tank (21).

8. The powder-pressing magnetic core forming device according to claim 1, characterized in that, The upper mold assembly (1) includes a first connecting part (12), on which a first connecting rod (121) is installed. Side plates (52) are installed on both sides of the platform (5). The side plates (52) are provided with guide grooves (521). The sliding seat (2) is provided with a second connecting part (23), on which a second connecting rod (24) is installed. The second connecting rod (24) can slide along the guide groove (521). The first connecting rod (121) and the second connecting rod (24) are connected by the connecting rod (3).

9. The powder-pressing magnetic core forming device according to claim 1, characterized in that, The sliding seat (2) is provided with a groove (27), the groove (27) is located on the lower end face of the sliding seat (2), the groove (27) is connected to the powder discharge hole (211), the groove (27) is equipped with a spatula (28), the spatula (28) is inclined, the spatula (28) includes a spatula end (281), the spatula end (281) faces the powder discharge hole (211), and the spatula end (281) is attached to the upper end face of the platform (5).

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