Anti-bubble soft magnetic ferrite core mold

Abstract

The utility model discloses an anti-bubble soft magnetic ferrite core mould which comprises a mounting frame, an upper mould and a lower mould are respectively mounted on the inner side of the mounting frame, a hydraulic oil cylinder connected with the upper mould is mounted at the top of the mounting frame, a supporting plate for mounting the lower mould is arranged at the bottom of the mounting frame, and a lower mould is mounted on the supporting plate. A damping spring abutting against the bottom of the supporting plate is mounted at the bottom of the mounting frame, a vibrator is mounted at the bottom of the supporting plate, and supporting strips for supporting the supporting plate are arranged on the inner side of the mounting frame. The device is simple in structure, the hydraulic oil cylinder drives the upper mold to move downwards for mold closing, the vibrator vibrates the lower mold on the supporting plate, after the mold is filled with magnetic powder, the interior of the magnetic powder is fully compacted, bubbles generated in the manufacturing process are pressed out, and the damping spring plays a role in preventing the vibration amplitude from being too large; magnetic core raw material liquid in the mold is prevented from flowing out, the production efficiency and the production quality of the soft magnetic ferrite magnetic core are guaranteed, and batch production is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of soft magnetic ferrite core production technology, specifically to a soft magnetic ferrite core mold that prevents air bubbles. Background Technology

[0002] Soft ferrite cores are materials that are easily magnetized and demagnetized, primarily used to enhance or guide the magnetic flux generated by current. Soft ferrite cores are widely used in power electronic circuits, such as voltage and current transformers, saturated reactors, magnetic amplifiers, inductors, and chokes. However, some existing core-making molds fail to compact the magnetic powder after filling, resulting in air bubbles inside most cores after manufacturing. This degrades core quality, affecting production efficiency and quality, and hindering mass production. Therefore, to avoid these shortcomings, improvements to the existing technology are necessary. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings and deficiencies in the existing technology and provide a simple, bubble-proof soft magnetic ferrite core mold.

[0004] This utility model is achieved through the following technical solution:

[0005] A bubble-proof soft magnetic ferrite core mold includes a mounting frame. An upper mold and a lower mold are respectively mounted on the inner side of the mounting frame. A hydraulic cylinder connected to the upper mold is mounted on the top of the mounting frame. A support plate for mounting the lower mold is provided at the bottom of the mounting frame. A shock-absorbing spring abutting against the bottom of the support plate is mounted at the bottom of the mounting frame. A vibrator is mounted at the bottom of the support plate.

[0006] Furthermore, the top of the upper mold is provided with several longitudinal upper guide rods, and the top of the mounting frame is provided with an upper guide sleeve for sliding connection of the upper guide rods.

[0007] Furthermore, the bottom of the upper mold is provided with several longitudinal guide pillars, and the lower mold is provided with several guide holes corresponding to the guide pillars.

[0008] Furthermore, the bottom of the guide post is provided with a tapered guide portion.

[0009] Furthermore, the lower mold is equipped with heat dissipation and flow guiding pipes.

[0010] Furthermore, the inner side of the mounting bracket is provided with support bars to support the support plate.

[0011] Furthermore, the mounting bracket has openings at both the front and back, and windows on both the left and right sides.

[0012] Furthermore, the bottom of the mounting bracket is provided with a lower guide rod for the shock-absorbing spring to be fitted.

[0013] Furthermore, the support plate is provided with a lower guide sleeve for sliding connection of the lower guide rod.

[0014] Furthermore, the top of the upper mold is provided with a pouring gate.

[0015] Compared to existing technologies, this invention features a hydraulic cylinder mounted on the top of a mounting frame, connected to an upper mold. The bottom of the mounting frame has a support plate for mounting a lower mold. A shock-absorbing spring is mounted on the bottom of the mounting frame, pressing against the bottom of the support plate. A vibrator is mounted on the bottom of the support plate. During operation, the hydraulic cylinder drives the upper mold downwards to close the mold. The vibrator vibrates the lower mold on the support plate, ensuring that the magnetic powder is fully compacted after filling the mold. Air bubbles generated during the manufacturing process are expelled. The shock-absorbing spring prevents excessive vibration, avoiding leakage of the magnetic core material liquid inside the mold. Simultaneously, no air bubbles remain inside, improving the quality of the magnetic core and ensuring the production efficiency and quality of soft ferrite cores, thus facilitating mass production. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the bubble-proof soft magnetic ferrite core mold of this utility model;

[0018] Figure 2 This is an exploded view of the structure of the bubble-proof soft magnetic ferrite core mold of this utility model.

[0019] In the diagram: 1-Mounting bracket; 2-Upper mold; 3-Lower mold; 4-Hydraulic cylinder; 5-Support plate; 6-Shock damping spring; 7-Vibrator; 8-Upper guide rod; 9-Upper guide sleeve; 10-Guide post; 11-Guide hole; 12-Conical guide part; 13-Heat dissipation and flow guide pipe; 14-Support bar; 15-Window; 16-Lower guide rod; 17-Lower guide sleeve; 18-Gating port. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1 and Figure 2 The present invention discloses a bubble-proof soft magnetic ferrite core mold, including a mounting frame 1. An upper mold 2 and a lower mold 3 are respectively mounted on the inner side of the mounting frame 1. A hydraulic cylinder 4 connected to the upper mold 2 is mounted on the top of the mounting frame 1. A support plate 5 for mounting the lower mold 3 is provided at the bottom of the mounting frame 1. A shock-absorbing spring 6 is installed at the bottom of the mounting frame 1 to abut against the bottom of the support plate 5. A vibrator 7 is installed at the bottom of the support plate 5. A hydraulic cylinder 4 connected to the upper mold 2 is installed on the top of the mounting frame 1. A support plate 5 for mounting the lower mold 3 is provided at the bottom of the mounting frame 1. A shock-absorbing spring 6 is installed at the bottom of the mounting frame 1 to abut against the bottom of the support plate 5. A vibrator 7 is installed at the bottom of the support plate 5. During operation, the hydraulic cylinder drives the upper mold 2 to move downward to close the mold. The vibrator 7 vibrates the lower mold 3 on the support plate 5, so that after the magnetic powder is filled into the mold, the inside of the magnetic powder is fully compacted, and the air bubbles generated during the production process are squeezed out. The shock-absorbing spring 6 prevents the vibration amplitude from being too large, avoids the liquid of the magnetic core material inside the mold from flowing out, and at the same time, no air bubbles remain inside, improving the quality of the magnetic core, ensuring the production efficiency and quality of soft magnetic ferrite cores, and facilitating mass production.

[0022] The top of the upper mold 2 is provided with several longitudinal upper guide rods 8, and the top of the mounting frame 1 is provided with an upper guide sleeve 9 for sliding connection of the upper guide rods 8, so that the up and down movement of the upper mold 2 is more stable.

[0023] The bottom of the upper mold 2 is provided with several longitudinal guide pillars 10, and the lower mold 3 is provided with several guide holes 11 corresponding to the guide pillars 10, so that the opening and closing of the upper mold 2 and the lower mold 3 is more stable.

[0024] The bottom of the guide post 10 is provided with a tapered guide part 12, which facilitates the smooth closing of the upper mold 2 to the lower mold 3.

[0025] The lower mold 3 is provided with a heat dissipation channel 13, in which coolant flows to dissipate heat from the interior of the lower mold 3, which facilitates rapid and uniform heat dissipation and avoids the formation of air bubbles.

[0026] The inner side of the mounting frame 1 is provided with support bars 14 that support the support plate 5, which provide stable support for the lower mold 14, facilitates stable pressing of the upper mold 2 and the lower mold 3, avoids loosening after vibration, and improves the production quality of soft magnetic ferrite cores.

[0027] The mounting bracket 1 has openings at both the front and back, and windows 15 are provided on both the left and right sides of the mounting bracket 1 to facilitate heat dissipation of the mold and make it easy to remove the magnetic core after cooling.

[0028] The bottom of the mounting bracket 1 is provided with a lower guide rod 16 for mounting the shock-absorbing spring 6, which makes the installation of the shock-absorbing spring 6 more stable and the elasticity recovery more stable.

[0029] The support plate 5 is provided with a lower guide sleeve 17 for sliding connection of the lower guide rod 16, so that the vertical vibration of the support plate 5 and the lower mold 3 is more stable.

[0030] The top of the upper mold 2 is provided with a pouring port 18 to facilitate the feeding of magnetic powder. The upper mold 2 is provided with multiple sets of injection channels that are connected to the pouring port 18.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mold for preventing air bubbles in soft magnetic ferrite cores, characterized in that: The device includes a mounting frame, on the inner side of which an upper mold and a lower mold are respectively mounted. A hydraulic cylinder connected to the upper mold is mounted on the top of the mounting frame. A support plate for mounting the lower mold is provided at the bottom of the mounting frame. A shock-absorbing spring abutting against the bottom of the support plate is mounted at the bottom of the mounting frame. A vibrator is mounted at the bottom of the support plate.

2. The bubble-proof soft magnetic ferrite core mold according to claim 1, characterized in that: The top of the upper mold is provided with several longitudinal upper guide rods, and the top of the mounting frame is provided with an upper guide sleeve for sliding connection of the upper guide rods.

3. The bubble-proof soft magnetic ferrite core mold according to claim 1, characterized in that: The bottom of the upper mold is provided with several longitudinal guide pillars, and the lower mold is provided with several guide holes corresponding to the guide pillars.

4. The bubble-proof soft magnetic ferrite core mold according to claim 3, characterized in that: The bottom of the guide post is provided with a tapered guide section.

5. The bubble-proof soft magnetic ferrite core mold according to claim 1, characterized in that: The lower mold is equipped with heat dissipation and flow guiding pipes.

6. The bubble-proof soft magnetic ferrite core mold according to claim 1, characterized in that: The mounting bracket has a support bar on its inner side to support the support plate.

7. The bubble-proof soft magnetic ferrite core mold according to claim 1, characterized in that: The mounting bracket has openings at both the front and back, and windows on both the left and right sides.

8. The bubble-proof soft magnetic ferrite core mold according to claim 1, characterized in that: The bottom of the mounting bracket is provided with a lower guide rod for the shock-absorbing spring to be fitted.

9. The bubble-proof soft magnetic ferrite core mold according to claim 8, characterized in that: The support plate is provided with a lower guide sleeve for sliding connection of the lower guide rod.

10. The bubble-proof soft magnetic ferrite core mold according to claim 1, characterized in that: The top of the upper mold is provided with a pouring gate.

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