A forming die for a flat and thin Mn-Zn ferrite core

Abstract

The utility model discloses a kind of forming mould of flat ultra-thin manganese-zinc ferrite core, including lower mould, the bottom surface of lower mould is fixedly connected with two support seats, the side surface of two The mutually close side surface of support seat is fixedly installed with jacking mechanism, the upper of lower mould is equipped with upper mould, the side surface of jacking mechanism is fixedly installed with fixed support plate, the side surface of fixed support plate is fixedly installed with frequency conversion motor, the output of frequency conversion motor is fixedly installed with rotating shaft, the top of rotating shaft is fixedly installed with rotating plate, the upper surface of rotating plate is fixedly connected with transmission shaft. The utility model can convert the circular motion of transmission shaft into the horizontal reciprocating motion of strip transmission slide plate by the auxiliary blanking mechanism driven by frequency conversion motor, can drive blanking top plate and blanking push plate to push core to material collecting device stably, avoid direct contact of external force to ultra-thin magnetic core, while save the time cost of artificial pickup, improve production efficiency.

Description

Technical Field

[0001] This application relates to the field of manganese-zinc ferrite core technology, and in particular to a molding die for a flat, ultra-thin manganese-zinc ferrite core. Background Technology

[0002] Manganese-zinc ferrite cores are soft magnetic material components made from manganese dioxide, zinc oxide, and ferric oxide as the main raw materials through powder metallurgy. Their core characteristics are high permeability, low coercivity, and excellent high-frequency magnetic properties. They can efficiently conduct magnetic energy in alternating magnetic fields with low energy loss. Therefore, they are widely used in miniaturized electronic devices, such as key components like switching power supply transformers, filters, and inductors. They are one of the core basic components that ensure the efficient and stable operation of electronic devices.

[0003] Due to the special structure of flat ultra-thin manganese zinc ferrite cores, they need to be pressed and formed using a special molding die. However, the current molding die usually uses an upward ejection method, where the formed core is ejected upward by an ejector pin mechanism inside the lower die, thus detaching it from the lower die cavity. But this design lacks a matching auxiliary unloading mechanism. After being ejected, the core will remain above the lower die and cannot fall automatically to the receiving device. It must be picked up manually one by one, which reduces production efficiency. Therefore, to solve the above problems, we provide a molding die for flat ultra-thin manganese zinc ferrite cores. Utility Model Content

[0004] The purpose of this invention is to provide a molding die for a flat, ultra-thin manganese-zinc ferrite core, so as to solve the problems mentioned in the background art.

[0005] The embodiments of this application adopt the following technical solutions: A molding die for a flat, ultra-thin manganese-zinc ferrite core includes a lower die. Two support seats are fixedly connected to the bottom surface of the lower die. A lifting mechanism is fixedly installed on one side of the two support seats, which are close to each other. An upper die is located above the lower die. A fixed support plate is fixedly installed on one side of the lifting mechanism. A variable frequency motor is fixedly installed on one side of the fixed support plate. A rotating shaft is fixedly installed at the output end of the variable frequency motor. A rotating plate is fixedly installed at the top of the rotating shaft. A transmission shaft is fixedly connected to the upper surface of the rotating plate. A bearing is fixedly connected to the outer surface of the transmission shaft. A support platform is fixedly connected to one side of the lower die. A discharge top plate is slidably connected to one side of the support platform. A strip-shaped transmission slide plate is fixedly connected to the bottom surface of the discharge top plate. The outer surface of the bearing contacts the inner wall of the strip-shaped transmission slide plate. A discharge push plate is fixedly installed on one side of the discharge top plate.

[0006] Preferably, the lifting mechanism includes a support plate, a cylinder is fixedly mounted on the upper surface of the support plate, an annular cover is fixedly mounted on the telescopic end of the cylinder, the inner bottom wall of the lower mold has annularly arranged sliding holes, a sliding rod is slidably connected to the inner wall of each sliding hole, the bottom end of each sliding rod is fixedly connected to the upper surface of the annular cover, and the top end of each sliding rod is fixedly connected to an annular top plate, the annular top plate being located inside the mold groove of the lower mold.

[0007] Preferably, two limiting supports are fixedly connected to both sides of the lower mold, and a limiting groove is formed on the side of the two limiting supports that are close to each other. A limiting slider is slidably connected to the inner wall of the two limiting grooves, and the side of the two limiting sliders that are close to each other is fixedly connected to both sides of the upper mold.

[0008] Preferably, the upper surface of the support platform has two sliding grooves, and the outer surface of the unloading top plate is provided with two limiting protrusions, and the outer surface of the limiting protrusions is slidably connected to the inner wall of the sliding groove.

[0009] Preferably, the upper surface of the upper mold has two sets of positioning holes, and the inner walls of the two sets of positioning holes are slidably connected with positioning rods, and the bottom ends of the two sets of positioning rods are fixedly connected to the upper surface of the lower mold.

[0010] Preferably, a connecting seat is fixedly connected to the upper surface of the upper mold, and the upper surface of the connecting seat is provided with annularly arranged threaded connecting grooves.

[0011] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects: The molding die for this flat, ultra-thin manganese-zinc ferrite core uses a cylinder to drive the upward movement of the annular cover, slide bar, and annular top plate, which ejects the core. After being ejected magnetically, an auxiliary feeding mechanism driven by a variable frequency motor converts the circular motion of the drive shaft into the horizontal reciprocating motion of the strip-shaped drive slide plate. This allows the feeding top plate and feeding push plate to smoothly push the core to the receiving device, saving the time and cost of manual picking and improving production efficiency.

[0012] The molding die for this flat, ultra-thin manganese-zinc ferrite core, through the cooperation of the limiting protrusion and the sliding groove at the support platform, can keep the top plate of the material feeding plate sliding stably and avoid material deviation. Combined with the positioning holes of the upper die and the positioning rods of the lower die, it ensures the stability during mold closing. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1See: A three-dimensional structural diagram of the molding die for the flat ultra-thin manganese-zinc ferrite core of this utility model; Figure 2 See: A frontal sectional view of the molding die for the flat, ultra-thin manganese-zinc ferrite core of this utility model; Figure 3 See: A three-dimensional structural schematic diagram of the side view of the molding die for the flat ultra-thin manganese-zinc ferrite core of this utility model; Figure 4 See: A side sectional view of the molding die for the flat, ultra-thin manganese-zinc ferrite core of this utility model; Figure 5 See: A three-dimensional structural diagram of the support platform in the molding die for the flat ultra-thin manganese-zinc ferrite core of this utility model, viewed from below; Figure 6 See: A bottom view of the lower mold in the molding die for the flat, ultra-thin manganese-zinc ferrite core of this utility model.

[0014] In the diagram: 1. Lower mold; 2. Support base; 3. Lifting mechanism; 301. Support plate; 302. Cylinder; 303. Annular cover; 304. Sliding rod; 305. Sliding hole; 306. Annular top plate; 4. Upper mold; 5. Variable frequency motor; 6. Rotating shaft; 7. Rotating plate; 8. Transmission shaft; 9. Bearing; 10. Strip transmission slide plate; 11. Unloading top plate; 12. Unloading push plate; 13. Limiting protrusion; 14. Slide groove; 15. Support platform; 16. Limiting support; 17. Limiting groove; 18. Limiting slider; 19. Positioning hole; 20. Positioning rod; 21. Connecting seat; 22. Fixed support plate. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0017] Please see Figure 1-6 This utility model provides a molding die solution for a flat, ultra-thin manganese-zinc ferrite core: A molding die for a flat, ultra-thin manganese-zinc ferrite core includes a lower die 1. Two support seats 2 are fixedly connected to the bottom surface of the lower die 1. A lifting mechanism 3 is fixedly installed on one side of the two support seats 2, which are close to each other. An upper die 4 is located above the lower die 1. A fixed support plate 22 is fixedly installed on one side of the lifting mechanism 3. A variable frequency motor 5 is fixedly installed on one side of the fixed support plate 22. A rotating shaft 6 is fixedly installed at the output end of the variable frequency motor 5. A rotating plate 7 is fixedly installed at the top of the rotating shaft 6. A transmission shaft 8 is fixedly connected to the upper surface of the rotating plate 7. A bearing 9 is fixedly connected to the outer surface of the transmission shaft 8. A support platform 15 is fixedly connected to one side of the lower die 1. A discharge top plate 11 is slidably connected to one side of the support platform 15. A strip-shaped transmission slide plate 10 is fixedly connected to the bottom surface. The outer surface of the bearing 9 contacts the inner wall of the strip-shaped transmission slide plate 10. A feeding push plate 12 is fixedly installed on one side of the feeding top plate 11. Specifically, the lower mold 1 and the upper mold 4 are key components for pressing the magnetic core. They can work together to complete the raw material forming. The frequency conversion motor 5 drives the rotating plate 7 to rotate through the rotating shaft 6 at the output end. This enables the transmission shaft 8 on the rotating plate 7 to make circular motion. The bearing 9 on the outer surface of the transmission shaft 8 contacts the strip-shaped transmission slide plate 10 on the bottom surface of the feeding top plate 11. This can convert the circular motion into the horizontal motion of the strip-shaped transmission slide plate 10, which ultimately drives the feeding top plate 11 to slide along the support platform 15. This provides a motion basis for the feeding push plate 12 to push the magnetic core, realizing the transmission and conversion of feeding power.

[0018] In this embodiment, the lifting mechanism 3 includes a support plate 301. A cylinder 302 is fixedly installed on the upper surface of the support plate 301. An annular cover 303 is fixedly installed on the telescopic end of the cylinder 302. The inner bottom wall of the lower mold 1 has annularly arranged sliding holes 305. A sliding rod 304 is slidably connected to the inner wall of each sliding hole 305. The bottom end of each sliding rod 304 is fixedly connected to the upper surface of the annular cover 303. The top end of each sliding rod 304 is fixedly connected to an annular top plate 306. The annular top plate 306 is located inside the mold groove of the lower mold 1. A connecting seat 21 is fixedly connected to the upper surface of the upper mold 4. The upper surface of the connecting seat 21 has an opening. There are threaded connection grooves arranged in a ring; specifically, the support plate 301 can support the cylinder 302, ensuring the stability of the extension and retraction of the cylinder 302. The extension and retraction end of the cylinder 302 drives the annular cover 303 to rise and fall synchronously. The annular cover 303 is connected to the slide rod 304, which allows the slide rod 304 to slide in a direction along the sliding hole 305 on the inner bottom wall of the lower mold 1, preventing the slide rod 304 from deviating. The annular top plate 306 can push the formed magnetic core upward under the action of the slide rod 304, realizing the initial separation of the magnetic core from the mold groove. The connecting seat 21 is used to be fixedly connected to an external lifting power mechanism such as a hydraulic cylinder, which can provide power support for the up and down movement of the upper mold 4.

[0019] In this embodiment, two limiting supports 16 are fixedly connected to both sides of the lower mold 1. Limiting grooves 17 are formed on the sides of the two limiting supports 16 that are close to each other. Limiting sliders 18 are slidably connected to the inner walls of the two limiting grooves 17. The sides of the two limiting sliders 18 that are close to each other are fixedly connected to both sides of the upper mold 4. Two sliding grooves 14 are formed on the upper surface of the support platform 15. Two limiting protrusions 13 are provided on the outer surface of the unloading top plate 11, and the outer surfaces of the limiting protrusions 13 are slidably connected to the inner walls of the sliding grooves 14. Two sets of positioning holes 19 are formed on the upper surface of the upper mold 4. Positioning rods 20 are slidably connected to the inner walls of the positioning holes 19, and the bottom ends of the two sets of positioning rods 20 are fixedly connected to the upper surface of the lower mold 1. Specifically, the sliding cooperation between the limiting groove 17 and the limiting slider 18 can limit the lifting trajectory of the upper mold 4 and prevent the upper mold 4 from shifting left and right during the pressing process. The sliding groove 14 and the limiting protrusion 13 can constrain the horizontal sliding direction of the unloading top plate 11 and avoid jamming or shifting when the unloading top plate 11 slides, ensuring that the position of the unloading push plate 12 pushing the magnetic core is accurate. The positioning holes 19 and the positioning rods 20 improve the alignment accuracy when the upper mold 4 and the lower mold 1 are closed.

[0020] Working principle: First, the magnetic core is pressed and formed by the cooperation of the upper mold 4 and the lower mold 1. After pressing, the cylinder 302 is started. The telescopic end of the cylinder 302 drives the annular cover 303 to move upward, which enables the slide rod 304 connected to the annular cover 303 to slide along the sliding hole 305 on the inner bottom wall of the lower mold 1. Finally, the annular top plate 306 at the top of the slide rod 304 pushes the formed magnetic core upward, realizing the initial separation of the magnetic core from the mold groove. When the annular top plate 306 pushes the magnetic core above the lower mold 1, the variable frequency motor 5 starts, which can drive the rotating shaft 6 to rotate. The rotating plate 7 at the top of the rotating shaft 6 rotates synchronously, which causes the transmission shaft 8 on the upper surface of the rotating plate 7 to make a circular motion. Since the bearing 9 on the surface of the transmission shaft 8 contacts the inner wall of the strip-shaped transmission slide plate 10 at the bottom of the unloading top plate 11, the circular motion of the transmission shaft 8 will be converted into the horizontal reciprocating motion of the strip-shaped transmission slide plate 10. This can drive the unloading top plate 11 to slide along the support platform 15, and push the formed magnetic core remaining above the lower mold 1 to the receiving device through the unloading push plate 12. The whole process realizes the operation from magnetic core forming, ejection to unloading through the linkage of the lifting and unloading mechanisms.

[0021] It should also be noted that, in terms of circuit structure, the drive and control circuits of this utility model are common and mature technologies. Those skilled in the art can select appropriate circuit components to build the circuit according to the power requirements and control requirements of the equipment. For the power supply components, common general-purpose power supply equipment on the market can be used, as long as it meets the voltage and current requirements of the equipment. No special design is required. In addition, the electrical components in this application are all common electrical equipment in the prior art. Furthermore, since they need to be connected to an external control system, this application will not elaborate on their models or internal structures.

[0022] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A molding die for a flat, ultra-thin manganese-zinc ferrite core, comprising a lower die (1), wherein two support seats (2) are fixedly connected to the bottom surface of the lower die (1), and a lifting mechanism (3) is fixedly installed on one side of the two support seats (2) that are close to each other, and an upper die (4) is provided above the lower die (1), characterized in that: A fixed support plate (22) is fixedly installed on one side of the lifting mechanism (3). A variable frequency motor (5) is fixedly installed on one side of the fixed support plate (22). A rotating shaft (6) is fixedly installed at the output end of the variable frequency motor (5). A rotating plate (7) is fixedly installed at the top of the rotating shaft (6). A transmission shaft (8) is fixedly connected to the upper surface of the rotating plate (7). A bearing (9) is fixedly connected to the outer surface of the transmission shaft (8). A support platform (15) is fixedly connected to one side of the lower mold (1). A material discharge top plate (11) is slidably connected to one side of the support platform (15). A strip-shaped transmission slide plate (10) is fixedly connected to the bottom surface of the material discharge top plate (11). The outer surface of the bearing (9) is in contact with the inner wall of the strip-shaped transmission slide plate (10). A material discharge push plate (12) is fixedly installed on one side of the material discharge top plate (11).

2. The molding die for a flat, ultra-thin manganese-zinc ferrite core according to claim 1, characterized in that: The lifting mechanism (3) includes a support plate (301), on the upper surface of the support plate (301) a cylinder (302) is fixedly installed, and an annular cover (303) is fixedly installed at the telescopic end of the cylinder (302).

3. The molding die for a flat, ultra-thin manganese-zinc ferrite core according to claim 2, characterized in that: The lower mold (1) has annularly arranged sliding holes (305) on its inner bottom wall. Each sliding hole (305) is slidably connected to a sliding rod (304) on its inner wall. The bottom end of each sliding rod (304) is fixedly connected to the upper surface of the annular cover (303). The top end of each sliding rod (304) is fixedly connected to an annular top plate (306). The annular top plate (306) is located inside the mold groove of the lower mold (1).

4. The molding die for a flat, ultra-thin manganese-zinc ferrite core according to claim 1, characterized in that: The lower mold (1) has two fixedly connected limit supports (16) on both sides. The two limit supports (16) have limit grooves (17) on their sides that are close to each other. The inner walls of the two limit grooves (17) are slidably connected to limit sliders (18). The sides of the two limit sliders (18) that are close to each other are fixedly connected to the two sides of the upper mold (4).

5. The molding die for a flat, ultra-thin manganese-zinc ferrite core according to claim 1, characterized in that: The upper surface of the support platform (15) has two sliding grooves (14), and the outer surface of the unloading top plate (11) is provided with two limiting protrusions (13), and the outer surface of the limiting protrusions (13) is slidably connected to the inner wall of the sliding groove (14).

6. The molding die for a flat, ultra-thin manganese-zinc ferrite core according to claim 1, characterized in that: The upper surface of the upper mold (4) is provided with two sets of positioning holes (19), and the inner walls of the two sets of positioning holes (19) are slidably connected with positioning rods (20). The bottom ends of the two sets of positioning rods (20) are fixedly connected to the upper surface of the lower mold (1).

7. The molding die for a flat, ultra-thin manganese-zinc ferrite core according to claim 1, characterized in that: The upper surface of the upper mold (4) is fixedly connected to a connecting seat (21), and the upper surface of the connecting seat (21) is provided with annularly arranged threaded connecting grooves.

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