A molding die for ultra-thin soft ferrite cores
CN224275506UActive Publication Date: 2026-05-26JIAXING CAREFUL MAGNETISM & ELECTRON CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAXING CAREFUL MAGNETISM & ELECTRON CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
In the existing technology, the molding die for ultra-thin soft magnetic ferrite cores cannot be precisely aligned, resulting in deformation and curling, and there is a lack of secondary stamping function to correct the curled area.
Method used
The system employs a combination of magnetic components and a toggle mechanism, controlling the lifting and pressing of the upper mold and the pressure through an energized solenoid. It also utilizes a return spring to achieve multiple reciprocating presses, preventing deformation and correcting curling.
Benefits of technology
It achieves precise forming of ultra-thin soft magnetic ferrite cores and flattening of the curled areas, reducing stamping damage and improving forming accuracy and efficiency.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224275506U_ABST
Abstract
This utility model relates to the field of magnetic core forming technology and discloses a forming mold for ultra-thin soft magnetic ferrite cores. It includes an upper mold and a lower mold, with a punch and a die at opposite ends. The upper mold slides and rises above the lower mold via multiple guide rods. The upper mold is driven to rise and fall by a magnetic attraction component. A lower pressing platform is located below the lower mold and is connected to the guide rods via a connecting component. A toggle mechanism that drives the lower pressing platform downwards is also provided at the bottom of the lower mold. This utility model utilizes a solenoid with a reverse current to generate a magnetic field identical to that of the magnetic attraction block, thus creating a repulsive phenomenon. This pushes the upper mold, carrying the punch downwards, avoiding damage to the ultra-thin magnetic core caused by traditional hydraulic impact. Furthermore, the pressing force of the upper mold can be controlled by adjusting the current flowing through the solenoid, making it better suited for the stamping manufacturing of ultra-thin soft magnetic ferrite cores and facilitating their forming.
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