Forming equipment for soft magnetic ferrite core

Abstract

The utility model relates to the field of punch forming equipment, in particular to soft magnetic ferrite core forming equipment which comprises a press machine body and a powder feeding box installed on a lower die plate of the press machine body, and a flexible sealing piece is arranged on the side face, close to the lower die plate, of the powder feeding box. The press machine body is further provided with a driving piece used for driving the powder feeding box to move horizontally and a pressure applying piece used for applying pressure to the powder feeding box to enable the powder feeding box to move in the direction close to the ground. The method has the effect of reducing raw material waste.

Description

Technical Field

[0001] This application relates to the technical field of stamping equipment, and in particular to a forming equipment for a soft magnetic ferrite core. Background Technology

[0002] Soft magnetic ferrite is a typical magnetic material commonly used in electronic products such as transformers, inductors, sensors, and communication equipment. Magnetic cores are typically produced using a powder metallurgy process. The main steps include mixing powdered raw materials, pressing them into shape using a press, and then sintering and polishing the pressed blanks to form the finished product.

[0003] During the pressing process, the press drives the stamping die to apply pressure to the lower die, causing the powder to form a blank. A feeding box is typically installed on the press's worktable, slidingly connected to it. The feeding box has an opening on its side closest to the ground. Sliding the feeding box aligns it with the lower die on the worktable. Once aligned, the powder material in the feeding box fills the lower die cavity through the opening, thus achieving feeding. For example, application number (

[0004] The patent document TW096138241 discloses a compression molding machine, which has a powder feeding box on its outer template. By sliding the powder feeding box on the outer template, it moves into the shaft hole to achieve material feeding.

[0005] In related technologies, the powder feeding box slides against the outer template. After feeding, the powder feeding box needs to be reset. During the reset process, due to the precision of the fit between the powder feeding box and the outer template, powder may remain on the path of the powder feeding box's movement, or powder may overflow from the box, resulting in material waste or dust generation. While these issues can be reduced by controlling the fit precision between the powder feeding box and the outer template during actual production, the high-precision grinding and processing costs for both are significant. Therefore, the molding equipment in these technologies requires further improvement. Utility Model Content

[0006] To reduce powder overflow from the powder feeding box during the powder feeding process, this application provides a molding device for soft magnetic ferrite cores.

[0007] The molding equipment for soft magnetic ferrite cores provided in this application adopts the following technical solution:

[0008] A molding device for soft magnetic ferrite cores includes a press body and a powder feeding box mounted on a lower template of the press body. A flexible sealing element is provided on the side of the powder feeding box near the lower template. The press body is also provided with a driving element for moving the powder feeding box horizontally and a pressure element for applying pressure to the powder feeding box to move it toward the ground.

[0009] By adopting the above technical solution, the powder feeding box is fitted onto the lower template, and the powder feeding box slides by being pushed and pulled by a driving component. A force-applying component applies a force to the powder feeding box, causing it to move closer to the lower template. Under this force, the powder feeding box presses against the flexible seal, utilizing the flexible seal's own softness to ensure a tight fit between the powder feeding box and the lower template, preventing powder material from overflowing and reducing material waste.

[0010] Optionally, the flexible seal is provided with an installation ring on the side near the powder feeding box. The installation ring is fixedly connected to the flexible seal. A wedge block is provided on the side of the installation ring near the powder feeding box. A corresponding wedge groove is provided on the powder feeding box. The wedge block is slidably fitted in the wedge groove. An opening is provided at one end of the wedge groove for the wedge block to slide out.

[0011] By adopting the above technical solution, the sliding wedge block can enter or move out of the wedge groove, realizing a detachable connection between the mounting ring and the powder feeding box, which facilitates the replacement of the flexible seal when it is severely worn.

[0012] Optionally, the powder feeding box is provided with a limiting component, the limiting component including a limiting block rotatably connected to the powder feeding box, and a limiting groove corresponding to the limiting block on the mounting ring, the limiting block being rotated so that one side of the limiting block can be inserted into the limiting groove.

[0013] By adopting the above technical solution, after the mounting ring is installed, the limiting block is rotated to insert into the limiting groove to limit the sliding of the mounting ring, thereby improving the stability of the flexible seal after installation.

[0014] Optionally, a knob is fixedly provided on the limiting block, and rotating the knob can drive the limiting block to rotate.

[0015] By adopting the above technical solution, a knob is set on the limit block to facilitate the worker to adjust the position of the limit block.

[0016] Optionally, the powder feeding box is provided with a locking rod that can slide in a direction parallel to the rotation axis of the limiting block, and the knob is provided with a locking groove corresponding to the locking rod. Sliding the locking rod allows one end of the locking rod to be inserted into the locking groove.

[0017] By adopting the above technical solution, after the position of the limit block is adjusted, the locking rod is inserted into the locking slot to limit the rotation of the knob, thereby limiting the limit block and improving the stability of the limit block in limiting the mounting ring.

[0018] Optionally, the powder feeding box is also provided with an elastic element for maintaining the tendency of the clamp rod to move towards the clamp slot.

[0019] By adopting the above technical solution, the elastic element continuously applies force to the lever, thereby improving the stability of the lever in limiting the knob position.

[0020] Optionally, the side of the lever near the slot is provided with a spherical surface, and the slot is correspondingly provided with a spherical groove.

[0021] By adopting the above technical solution, when the lever is inserted into the slot, applying sufficient force to the knob will allow the lever to overcome the elastic force and disengage from the slot under the action of the spherical surface, making it convenient for the operator to adjust the position of the limit block. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of the powder delivery box according to an embodiment of this application.

[0024] Figure 3 This is an embodiment of the present application. Figure 2 Enlarged view of section A.

[0025] Reference numerals: 1. Press body; 11. Lower template; 2. Powder feeding box; 3. Flexible seal; 4. Pressure applying component; 5. Mounting ring; 51. Wedge block; 52. Wedge groove; 6. Limiting component; 61. Limiting block; 62. Knob; 63. Limiting groove; 64. Locking rod; 65. Locking slot; 66. Elastic component; 67. Spherical surface; 7. Driving component. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0027] This application discloses a molding apparatus for soft magnetic ferrite cores.

[0028] Reference Figure 1 and Figure 2A molding device for soft magnetic ferrite cores includes a press body 1. A powder feeding box 2 is slidably mounted on the lower template 11 of the press body 1. A driving component 7 for pushing and pulling the powder feeding box 2 is mounted on the press body 1; in this embodiment, the driving component is a cylinder. The powder feeding box 2 is hollow and connected to a hopper containing powder raw materials. A flexible sealing component 3 is provided between the powder feeding box 2 and the lower template 11. An opening is provided on the side of the powder feeding box 2 closest to the ground, and the powder feeding box 2 has a square structure overall. The shape of the flexible sealing component 3 corresponds to the shape of the side of the powder feeding box 2 closest to the ground, i.e., a square annular structure. A pressure applying component 4 is provided above the powder feeding box 2, which applies a force to the powder feeding box 2 to move it closer to the ground. Under the action of the pressure applying component 4, the powder feeding box 2 presses against the sealing component, and the flexible sealing component 3 seals the powder feeding box 2 and the lower template 11, thereby reducing powder overflow. Moreover, this method has low cost and is beneficial to actual production activities.

[0029] Reference Figure 1 and Figure 2 The force-applying component is a cylinder, with one end rotatably connected to the press body 1 and the other end rotatably connected to the powder feeding box 2. Under the action of the air source, the cylinder can apply a certain force to the powder feeding box 2, thereby pressurizing the powder feeding box 2.

[0030] Reference Figure 2 and Figure 3 In this embodiment, the flexible seal 3 is a sponge, and the inner wall of the flexible seal 3 is located inside the powder feeding box 2, while the outer wall of the flexible seal 3 is located outside the powder feeding box 2. The contact point between the powder feeding box 2 and the flexible seal 3 is recessed under pressure to form a groove, thereby ensuring a sealing effect. This also reduces the occurrence of horizontal misalignment of the flexible seal 3 during the movement of the powder feeding box 2.

[0031] Reference Figure 2 and Figure 3 A mounting ring 5 is provided on the side of the flexible seal 3 away from the ground, and the flexible seal 3 is adhered to the powder delivery box 2. A wedge block 51 is provided on the side of the mounting ring 5 away from the flexible seal 3, and a wedge groove 52 is provided on the powder delivery box 2 corresponding to the wedge block 51. The wedge block 51 slides in the wedge groove 52. One end of the wedge groove 52 has an opening. By sliding the mounting ring 5 in the horizontal direction, the wedge block 51 can be disengaged from the wedge groove 52, realizing the installation and disassembly of the flexible seal 3 and the powder delivery box 2.

[0032] Reference Figure 2 and Figure 3The powder feeding box 2 is also equipped with a limiting component 6, which includes a limiting block 61. The limiting block 61 is rotatably connected to the powder feeding box 2, and the rotation axis of the limiting block 61 is parallel to the sliding direction of the wedge block 51. A limiting groove 63 is provided on the mounting ring 5 at the position corresponding to the limiting block 61. Rotating the limiting block 61 allows one side of the limiting block 61 to enter the limiting groove 63, thereby limiting the sliding of the mounting ring 5 and improving the stability of the mounting ring 5 after installation.

[0033] Reference Figure 2 and Figure 3 The limiting block 61 is located inside the side wall of the powder feeding box 2 to effectively utilize the space inside the side wall of the powder feeding box 2. A knob 62 is provided on the limiting block 61. By rotating the knob 62, the limiting block 61 can be rotated, which makes it convenient for the operator to adjust the position of the limiting block 61.

[0034] Reference Figure 2 and Figure 3 A locking rod 64 is slidably connected to the side of the powder dispenser 2 near the knob 62 along a direction parallel to the rotation axis of the limiting block 61. A locking groove 65 is provided at the position of the knob 62 corresponding to the locking rod 64. Sliding the locking rod 64 allows one end of the locking rod 64 to be inserted into the locking groove 65, thereby limiting the rotation of the knob 62 and, consequently, the rotation of the limiting block 61. An elastic element 66 is also provided on the powder dispenser 2. The elastic element 66 applies a force to the locking rod 64, causing it to move closer to the locking groove 65. In this embodiment, the elastic element 66 is a spring, with one end connected to the powder dispenser 2 and the other end abutting against the locking rod 64. Under the action of the spring, the locking rod 64 can be prevented from moving away from the locking groove 65, thereby improving the stability of the locking rod 64 in limiting the knob 62.

[0035] Reference Figure 2 and Figure 3 The locking lever 64 has a spherical surface 67 on its side near the locking groove 65. The locking groove 65 is configured as a spherical groove corresponding to the spherical surface 67. When the operator applies force to the knob 62, the locking lever 64 can disengage from the locking groove 65 under the action of the spherical surface 67, so that the knob 62 can be rotated. With the end of the locking lever 64 embedded in the locking groove 65, and the knob 62 not easily moving under the premise of no external force, the stability of the limiting block 61 in limiting the mounting ring 5 is ensured.

[0036] The implementation principle of the molding equipment for soft magnetic ferrite cores in this application embodiment is as follows: by setting a flexible sealing element 3, the powder raw material is prevented from overflowing from the powder feeding box 2, thereby reducing the waste of raw materials.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A molding apparatus of a soft magnetic ferrite core, comprising a press body (1) and a powder feeding box (2) mounted on a lower die plate (11) of the press body (1), characterized in that: The flexible sealing piece (3) is provided with a mounting ring (5) on one side close to the powder feeding box (2), the mounting ring (5) is fixedly connected with the flexible sealing piece (3), the mounting ring (5) is provided with a wedge-shaped block (51) on one side close to the powder feeding box (2), the powder feeding box (2) is correspondingly provided with a wedge-shaped groove (52), the wedge-shaped block (51) is slidingly fitted in the wedge-shaped groove (52), and one end of the wedge-shaped groove (52) is provided with an opening for the wedge-shaped block (51) to slide out.

2. A molding apparatus for soft magnetic ferrite cores according to claim 1, characterized in that: The flexible sealing piece (3) is provided with a mounting ring (5) on one side close to the powder feeding box (2), the mounting ring (5) is fixedly connected with the flexible sealing piece (3), the mounting ring (5) is provided with a wedge-shaped block (51) on one side close to the powder feeding box (2), the powder feeding box (2) is correspondingly provided with a wedge-shaped groove (52), the wedge-shaped block (51) is slidingly fitted in the wedge-shaped groove (52), and one end of the wedge-shaped groove (52) is provided with an opening for the wedge-shaped block (51) to slide out.

3. A molding apparatus for soft magnetic ferrite cores according to claim 2, characterized in that: The flexible sealing piece (3) is provided with a mounting ring (5) on one side close to the powder feeding box (2), the mounting ring (5) is fixedly connected with the flexible sealing piece (3), the mounting ring (5) is provided with a wedge-shaped block (51) on one side close to the powder feeding box (2), the powder feeding box (2) is correspondingly provided with a wedge-shaped groove (52), the wedge-shaped block (51) is slidingly fitted in the wedge-shaped groove (52), and one end of the wedge-shaped groove (52) is provided with an opening for the wedge-shaped block (51) to slide out.

4. A molding apparatus for soft magnetic ferrite cores according to claim 3, characterized in that: The flexible sealing piece (3) is provided with a mounting ring (5) on one side close to the powder feeding box (2), the mounting ring (5) is fixedly connected with the flexible sealing piece (3), the mounting ring (5) is provided with a wedge-shaped block (51) on one side close to the powder feeding box (2), the powder feeding box (2) is correspondingly provided with a wedge-shaped groove (52), the wedge-shaped block (51) is slidingly fitted in the wedge-shaped groove (52), and one end of the wedge-shaped groove (52) is provided with an opening for the wedge-shaped block (51) to slide out.

5. A molding apparatus for soft magnetic ferrite cores according to claim 4, characterized in that: The flexible sealing piece (3) is provided with a mounting ring (5) on one side close to the powder feeding box (2), the mounting ring (5) is fixedly connected with the flexible sealing piece (3), the mounting ring (5) is provided with a wedge-shaped block (51) on one side close to the powder feeding box (2), the powder feeding box (2) is correspondingly provided with a wedge-shaped groove (52), the wedge-shaped block (51) is slidingly fitted in the wedge-shaped groove (52), and one end of the wedge-shaped groove (52) is provided with an opening for the wedge-shaped block (51) to slide out.

6. A molding apparatus for soft magnetic ferrite cores according to claim 5, characterized in that: The flexible sealing piece (3) is provided with a mounting ring (5) on one side close to the powder feeding box (2), the mounting ring (5) is fixedly connected with the flexible sealing piece (3), the mounting ring (5) is provided with a wedge-shaped block (51) on one side close to the powder feeding box (2), the powder feeding box (2) is correspondingly provided with a wedge-shaped groove (52), the wedge-shaped block (51) is slidingly fitted in the wedge-shaped groove (52), and one end of the wedge-shaped groove (52) is provided with an opening for the wedge-shaped block (51) to slide out.

7. A molding apparatus for soft magnetic ferrite cores according to claim 6, characterized in that: ​

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