Machining die for producing EE13 type magnetic core

By designing a multi-cavity machining mold, the high-efficiency production of EE13 magnetic cores was achieved, solving the problem of low single-cycle production efficiency of traditional molds, improving production efficiency and reducing costs.

CN224248449UActive Publication Date: 2026-05-15TONGXIANG YUTONG ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TONGXIANG YUTONG ELECTRONIC TECH CO LTD
Filing Date
2025-05-29
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Traditional EE13 type magnetic core production molds can only produce one magnetic core at a time, resulting in low production efficiency and making it difficult to meet the high-efficiency production needs of the modern electronics industry.

Method used

Design a processing mold with multiple forming cavities, including several upper molds, lower molds, ejection mechanisms and drive components. The upper molds and lower molds are driven by hydraulic cylinders to close or separate, so as to achieve the simultaneous forming of multiple magnetic cores. The ejection mechanism is also equipped to facilitate material unloading.

Benefits of technology

It improves the production efficiency of EE13 magnetic cores, reduces production costs, and allows for individual replacement of parts when the mold is damaged, simplifying the control procedure.

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Abstract

The utility model discloses a machining die for producing an EE13 type magnetic core, relates to the technical field of magnetic core production, and aims to provide a machining die with a plurality of forming cavities, which comprises a plurality of upper dies, a plurality of lower dies, an ejection mechanism and a driving assembly, wherein one upper mold is provided with a material injection hole communicating with the first forming cavity, a first communicating hole communicating with the first forming cavity of the two adjacent upper molds is formed between the two adjacent upper molds, and a second communicating hole communicating with the second forming cavity of the two adjacent lower molds is formed between the two adjacent lower molds. A plurality of magnetic cores can be produced at the same time, the production efficiency is improved, the multiple upper dies are driven only through one hydraulic cylinder, the power source is saved, meanwhile, the control program can be simplified, and the cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of magnetic core production technology, and more specifically, to a processing mold for producing EE13 type magnetic cores. Background Technology

[0002] Magnetic cores, as key components in electronic devices, are widely used in transformers, inductors, and other equipment, playing a crucial role in the performance and stability of electronic devices. EE13 type magnetic cores, due to their excellent electromagnetic and mechanical properties, are widely used in the electronics industry. Their production process typically includes raw material grinding, mixing, molding, and sintering.

[0003] In the production process of EE13 magnetic cores, mold forming is one of the key steps. Traditional processing molds typically have only a single forming cavity, meaning that only one magnetic core can be produced at a time. While this design ensures the precision and quality of the magnetic core, it results in low production efficiency, making it difficult to meet the demands of the modern electronics industry for high-efficiency production.

[0004] To address the aforementioned issues and improve the production efficiency of EE13 magnetic cores, developing a processing mold with multiple forming cavities is crucial. A multi-cavity mold can produce multiple magnetic cores in a single forming process, significantly improving production efficiency and reducing production costs. Utility Model Content

[0005] In view of the problems existing in the prior art, this utility model provides a processing mold for the production of EE13 type magnetic cores to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a processing mold for producing EE13 type magnetic cores, comprising several upper molds, several lower molds, an ejection mechanism, and a drive assembly. Each upper mold has a first forming cavity, and each lower mold has a second forming cavity. One upper mold has an injection hole communicating with the first forming cavity. Adjacent upper molds have a first communicating hole connecting their first forming cavities, and adjacent lower molds have a second communicating hole connecting their second forming cavities. The drive assembly is used to drive the upper molds closer to or further away from the lower molds, thereby causing the upper and lower molds to close or separate.

[0007] The present invention is further configured such that the driving assembly includes a base plate, a top plate, four guide columns, a movable plate, and a hydraulic cylinder. The top plate and the base plate are fixedly connected by the four guide columns. The movable plate is located between the top plate and the base plate and is slidably sleeved on the outside of the guide columns. The hydraulic cylinder is fixedly installed on the top plate, and the telescopic end of the hydraulic cylinder passes through the top plate and is fixedly connected to the movable plate.

[0008] The present invention is further configured such that a first receiving plate is installed on the lower surface of the movable plate, and a plurality of upper molds are installed on the lower surface of the first receiving plate.

[0009] The present invention is further configured such that a second receiving plate is installed on the upper surface of the base plate, and a plurality of lower molds are installed on the second receiving plate.

[0010] The present invention is further configured such that the ejection mechanism includes a mounting bracket fixed to the lower surface of the base plate, a drive cylinder fixed to the mounting bracket, a mounting plate, and an ejector pin.

[0011] The telescopic end of the drive cylinder passes through the mounting bracket and is connected to the mounting plate. The bottom end of the ejector pin is fixed to the mounting plate. The lower mold and the second receiving plate have ejection holes for the ejector pin to pass through.

[0012] The present invention is further configured such that the ejection mechanism comprises several units, each corresponding to a number of lower molds.

[0013] The present invention is further configured such that the upper mold and the first receiving plate are detachably connected by bolts.

[0014] The present invention is further configured such that the lower mold and the second receiving plate are detachably connected by bolts.

[0015] Compared with the prior art, this utility model provides a processing mold for the production of EE13 type magnetic cores, which has the following beneficial effects:

[0016] 1. This application has several upper molds and several lower molds, which can produce multiple magnetic cores at the same time, improving production efficiency. Moreover, the several upper molds are driven by only one hydraulic cylinder, which saves power source and simplifies control program and reduces cost.

[0017] 2. In this application, multiple upper molds are detachably installed on the first receiving plate, and multiple lower molds are detachably installed on the second receiving plate. When a certain upper mold or lower mold is damaged, the corresponding upper mold or lower mold can be replaced individually without replacing the whole thing.

[0018] 3. This application has an ejection mechanism, which can eject the workpiece from the second forming cavity after forming is completed, making it convenient for unloading. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the processing mold used for producing the EE13 type magnetic core in this utility model;

[0020] Figure 2 This is a schematic diagram of the upper and lower molds in this utility model;

[0021] Figure 3 for Figure 2 A structural diagram from another angle;

[0022] Figure 4 This is a schematic diagram of the ejection mechanism in this utility model.

[0023] In the diagram: 1. Upper mold; 101. First molding cavity; 102. Injection hole; 103. First connecting hole; 2. Lower mold; 201. Second molding cavity; 202. Second connecting hole; 203. Ejection hole; 3. Ejection mechanism; 301. Mounting bracket; 302. Drive cylinder; 303. Mounting plate; 304. Ejector pin; 4. Drive assembly; 401. Base plate; 402. Top plate; 403. Guide column; 404. Moving plate; 405. Hydraulic cylinder; 5. First receiving plate; 6. Second receiving plate. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0027] Please see Figure 1-4 The processing mold for producing EE13 type magnetic cores includes several upper molds 1, several lower molds 2, an ejection mechanism 3, and a drive assembly 4. Each upper mold 1 has a first forming cavity 101, and each lower mold 2 has a second forming cavity 201. One upper mold 1 has an injection hole 102 communicating with the first forming cavity 101. Adjacent upper molds 1 have a first connecting hole 103 connecting their respective first forming cavities 101, and adjacent lower molds 2 have a second connecting hole 202 connecting their respective second forming cavities 201. The drive assembly 4 drives the upper molds 1 to move closer to or further away from the lower molds 2, thereby causing the upper molds 1 and 2 to close or separate. The upper molds 1 are detachably connected to a first receiving plate 5 by bolts, and the lower molds 2 are detachably connected to a second receiving plate 6 by bolts.

[0028] In practical applications, the injection hole 102 is connected to an external injection device. When processing is required, the drive assembly 4 is activated, causing it to move several upper molds 1 downwards until the upper molds 1 and lower molds 2 are closed. At this time, the material enters the first molding cavity 101 and the second molding cavity 201 through the injection hole 102, and enters the adjacent first molding cavity 101 and second molding cavity 201 through the first connecting hole 103 and the second connecting hole 202, until all the first molding cavities 101 and second molding cavities 201 are filled. After cooling and molding are completed, the drive assembly 4 is activated, causing it to move several upper molds 1 upwards, causing the upper molds 1 and lower molds 2 to separate. The workpiece in the second molding cavity 201 is then ejected by the ejection mechanism 3.

[0029] In this embodiment, the drive assembly 4 includes a base plate 401, a top plate 402, four guide pillars 403, a movable plate 404, and a hydraulic cylinder 405. The top plate 402 and the base plate 401 are fixedly connected by the four guide pillars 403. The movable plate 404 is located between the top plate 402 and the base plate 401, and the movable plate 404 is slidably sleeved on the outside of the guide pillars 403. The hydraulic cylinder 405 is fixedly installed on the top plate 402, and the telescopic end of the hydraulic cylinder 405 passes through the top plate 402 and is fixedly connected to the movable plate 404. A first receiving plate 5 is installed on the lower surface of the movable plate 404, and a plurality of upper molds 1 are installed on the lower surface of the first receiving plate 5. A second receiving plate 6 is installed on the upper surface of the base plate 401, and a plurality of lower molds 2 are installed on the second receiving plate 6.

[0030] In practical applications, activating the hydraulic cylinder 405 and extending it will cause the moving plate 404 and the upper mold 1 to move downwards, while shortening it will cause the moving plate 404 and the upper mold 1 to move upwards.

[0031] In this embodiment, the ejection mechanism 3 includes a mounting bracket 301 fixed to the lower surface of the base plate 401, a drive cylinder 302 fixed to the mounting bracket 301, a mounting plate 303 and an ejector pin 304. The telescopic end of the drive cylinder 302 passes through the mounting bracket 301 and is connected to the mounting plate 303. The bottom end of the ejector pin 304 is fixed to the mounting plate 303. The lower mold 2 has an ejection hole 203 for the ejector pin 304 to pass through. There are several ejection mechanisms 3, which are respectively arranged corresponding to several lower molds 2.

[0032] In practical applications, after the workpiece is formed and the upper mold 1 and lower mold 2 are separated, the drive cylinder 302 is activated to extend it, which drives the ejector pin 304 to move upward and eject the workpiece from the second forming cavity 201.

[0033] In all the solutions mentioned above, although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A machining mold for producing EE13 type magnetic cores, characterized in that, It includes several upper molds (1), several lower molds (2), an ejection mechanism (3), and a drive assembly (4), wherein, The upper mold (1) has a first molding cavity (101) and the lower mold (2) has a second molding cavity (201). One of the upper molds (1) has an injection hole (102) that communicates with the first molding cavity (101). There is a first connecting hole (103) between two adjacent upper molds (1) that connects the two first forming cavities (101). There is a second connecting hole (202) between two adjacent lower molds (2) that connects the two second forming cavities (201). The drive component (4) is used to drive the upper mold (1) to approach or move away from the lower mold (2), thereby causing the upper mold (1) and the lower mold (2) to close or separate.

2. The processing mold for producing EE13 type magnetic cores according to claim 1, characterized in that, The drive assembly (4) includes a base plate (401), a top plate (402), four guide columns (403), a moving plate (404), and a hydraulic cylinder (405). The top plate (402) and the base plate (401) are fixedly connected by the four guide columns (403). The moving plate (404) is located between the top plate (402) and the base plate (401), and the moving plate (404) is slidably sleeved on the outside of the guide columns (403). The hydraulic cylinder (405) is fixedly installed on the top plate (402), and the telescopic end of the hydraulic cylinder (405) passes through the top plate (402) and is fixedly connected to the moving plate (404).

3. The processing mold for producing EE13 type magnetic cores according to claim 2, characterized in that, The lower surface of the movable plate (404) is equipped with a first receiving plate (5), and several upper molds (1) are installed on the lower surface of the first receiving plate (5).

4. The processing mold for producing EE13 type magnetic cores according to claim 2, characterized in that, The upper surface of the base plate (401) is equipped with a second support plate (6), and several lower molds (2) are installed on the second support plate (6).

5. The processing mold for producing EE13 type magnetic cores according to claim 4, characterized in that, The ejection mechanism (3) includes a mounting bracket (301) fixed to the lower surface of the base plate (401), a drive cylinder (302) fixed to the mounting bracket (301), a mounting plate (303), and an ejector pin (304). The telescopic end of the drive cylinder (302) passes through the mounting bracket (301) and is connected to the mounting plate (303). The bottom end of the ejector pin (304) is fixed on the mounting plate (303). The lower mold (2) and the second receiving plate (6) have ejection holes (203) through which the ejector pin (304) passes.

6. The processing mold for producing EE13 type magnetic cores according to claim 5, characterized in that, The ejection mechanism (3) has several units, each corresponding to a number of lower molds (2).