CN212485129U

CN212485129U - Power ferrite magnetic core integrated into one piece mould

Info

Publication number: CN212485129U
Application number: CN202021116004.3U
Authority: CN
Inventors: 吴振杰; 张霞萍; 汪朝强; 许铭杰; 严晓明; 邓惠峰
Original assignee: Haining Kangming Electronic Co ltd
Current assignee: Haining Kangming Electronic Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-02-05
Anticipated expiration: 2030-06-16

Abstract

The utility model discloses a power ferrite core integrated into one piece mould, including upper die and lower die, set up the die cavity on the said lower die, install two stem shaping pieces in the said die cavity, meanwhile, install the notch shaping piece on the side of the said stem shaping piece respectively; a pressing block matched with the die cavity is arranged at the bottom of the upper die corresponding to the die cavity of the lower die, and a notch forming block is also arranged at the bottom of the pressing block; the lower die is provided with an ejection hole for demoulding, an ejection template capable of ejecting the die material upwards when the lower die is separated from the upper die is further arranged below the lower die, the ejection template is provided with an ejection plate matched with the ejection hole, and the ejection plate is flush with the surface of a die cavity of the lower die when the upper die is closed. The utility model discloses a power ferrite core integrated into one piece mould through setting up notch shaping piece and trompil post, but one shot forming processing goes out the groove, can conveniently carry out the drawing of patterns simultaneously, greatly increased production efficiency.

Description

Power ferrite magnetic core integrated into one piece mould

Technical Field

The utility model relates to a magnetic core production and processing technology field especially relates to a power ferrite core integrated into one piece mould.

Background

The magnetic core is applied to coils or transformers of various electronic devices, the magnetic core in the industry has a plurality of structures, generally, the magnetic core is in C, O, E shapes, different structures and functions are different, and manufacturers produce the magnetic cores with different structures according to different requirements of customers. Especially for the magnetic core of some high-power equipment, the magnetic core is required to have better heat dissipation capability, so that the magnetic core is provided with a slotted hole to enhance the heat dissipation capability, and the magnetic core component to be processed is shown in fig. 1.

In current magnetic core mould, generally the general mode of adopting carries out the shaping, in traditional mould, directly puts into the mould with the formula clay and carries out the compression moulding, obviously can't satisfy the magnetic core of opening the radiating groove in the magnetic core, consequently needs follow-up independent fluting processing of carrying on. In view of the above-mentioned drawbacks, improvements are needed.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the utility model is to provide a power ferrite core integrated into one piece mould, through setting up notch shaping piece and trompil post, can one shot forming process out the groove, can conveniently carry out the drawing of patterns simultaneously, greatly increased production efficiency.

The technical scheme of the utility model as follows:

a power ferrite core integrated forming die comprises an upper die and a lower die, wherein a die cavity is formed in the lower die, two core column forming blocks are arranged in the die cavity, and meanwhile, notch forming blocks are respectively arranged on the side surfaces of the core column forming blocks;

a pressing block matched with the die cavity is arranged at the bottom of the upper die corresponding to the die cavity of the lower die, and a notch forming block is also arranged at the bottom of the pressing block;

the lower die is provided with an ejection hole for demoulding, an ejection template capable of ejecting the die material upwards when the lower die is separated from the upper die is further arranged below the lower die, the ejection template is provided with an ejection plate matched with the ejection hole, and the ejection plate is flush with the surface of a die cavity of the lower die when the upper die is closed.

Further, the height of the core column forming block is lower than that of the cavity in the lower die.

Furthermore, the lower die is provided with a mounting counter bore for fixing the core column forming block and the notch forming block.

Furthermore, guide holes are formed in the end sides of the lower die and the ejection die plate, a guide lifting column is installed on the side face of the pressing block at the bottom of the upper die, a lifting block is connected to the bottom of the guide lifting column in a threaded mode, and the lifting block is arranged on the lower end face of the ejection die plate.

Further, the ejection hole is a non-through cylinder hole, an ejection guide hole communicated with the ejection hole is formed below the ejection hole, and correspondingly, an ejection guide column matched with the ejection guide hole is fixed at the bottom of the ejection plate.

The utility model provides a beneficial effect: the notch forming block is arranged, so that a notch is conveniently formed on the core column; through setting up the direction and promoting the post, can be convenient for the location, set up simultaneously and promote can conveniently ejecting magnetic core and carry out the drawing of patterns soon, and because the liftout plate matches with ejecting hole, powder spills when can avoiding extrusion.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of a magnetic core to be processed;

fig. 2 is a schematic structural view of the power ferrite core integral molding die provided by the present invention (a partial cross-sectional view of the lower die end side);

FIG. 3 is a schematic structural view of the lower mold of FIG. 2;

fig. 4 is a schematic structural view of the molds when they are mated.

In the figure: 1-upper mould; 11-a connecting portion; 12-briquetting; 13-a screw hole; 2-lower mould; 21-core column forming block; 22-ejection hole; 23-ejecting a guide hole; 3, ejecting the template; 31-ejecting a guide post; 32-a knock-out plate; 4-a notch forming block; 5-a guide hole; 6-a guide lifting column; 61-lifting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 2, a power ferrite core integral forming die comprises an upper die 1 and a lower die 2, wherein a die cavity is formed in the lower die 2 corresponding to a core to be processed (as shown in fig. 1), two core column forming blocks 21 are installed in the die cavity (the height of each core column forming block 21 is lower than that of a cavity in the lower die 2), and meanwhile, notch forming blocks 4 are respectively installed on the side surfaces of the core column forming blocks 21 (as shown in fig. 3, mounting counter bores are formed in the lower die 2 and used for fixing the core column forming blocks 21 and the notch forming blocks 4);

a pressing block 12 matched with the die cavity is arranged at the bottom of the upper die 1 corresponding to the die cavity of the lower die 2, and a notch forming block 4 is also arranged at the bottom of the pressing block 12 (the notch forming block 4 in the upper die 1 is fixed by a screw connection hole 13 on the upper die 1 in a screw connection way);

the lower die 2 is provided with an ejection hole 22 for demolding, correspondingly, an ejection template 3 capable of ejecting the die material upwards along with the separation of the upper die 1 is further arranged below the lower die 1, the ejection template 3 is provided with an ejection plate 32 matched with the ejection hole 22, and the ejection plate 32 is flush with the surface of the die cavity of the lower die 2 when the upper die 1 is closed.

Referring to fig. 2, the lower die 2 and the ejector die plate 3 are provided with guide holes 5 on end sides thereof, a guide lifting column 6 is mounted on a side surface of the pressing block 12 at the bottom of the upper die 1, a lifting block 61 is screwed to the bottom of the guide lifting column 6, and the lifting block 61 is disposed on a lower end surface of the ejector die plate 3.

Referring to fig. 2 to 4, the ejection hole 22 is a non-through cylindrical hole, an ejection guide hole 23 communicating with the ejection hole 22 is formed below the ejection hole 22, and correspondingly, an ejection guide post 31 matching with the ejection guide hole 23 is fixed to the bottom (bolt) of the ejection plate 32.

When the magnetic core pressing die is used, the upper die 1 is only required to be fixed on an output shaft (the upper die 1 is provided with the connecting part 11 which can be directly screwed with a stud on the output shaft), the end side of the lower die 2 is arranged on a clamping table board, the upper die 1 can be driven to punch towards the lower die 2 by pressing down the output shaft, the powdered core powder added into the lower die 2 is extruded, at the moment, the pressing block 12 is filled and extrudes the core powder in the die cavity, and the core powder is formed into a shape corresponding to the magnetic core through the core column forming block 21 and the notch forming block; during demolding, the guide lifting column 6 on the upper mold 1 drives the ejection template 3 to move upwards through the lifting block 61, and then the ejection guide column 31 is jacked upwards, so that the processed magnetic core is ejected out for demolding.

In the present application, the structures and the connection relations that are not described in detail are all the prior art, and the structures and the principles thereof are known in the prior art and are not described herein again.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a power ferrite core integrated into one piece mould, includes mould and lower mould the die cavity has been seted up on the lower mould, its characterized in that: two core column forming blocks are arranged in the die cavity, and meanwhile, notch forming blocks are respectively arranged on the side surfaces of the core column forming blocks;

2. The power ferrite core integral molding die of claim 1, wherein: the height of the stem forming block is lower than that of the cavity in the lower die.

3. The power ferrite core integral molding die of claim 1 or 2, wherein: and the lower die is provided with a mounting counter bore for fixing the core column forming block and the notch forming block.

4. The power ferrite core integral molding die of claim 1 or 2, wherein: the side surfaces of the lower die and the ejection die plate are provided with guide holes, the bottom of the upper die is provided with a guide lifting column on the side surface of the pressing block, the bottom of the guide lifting column is in threaded connection with a lifting block, and the lifting block is arranged on the lower end surface of the ejection die plate.

5. The power ferrite core integral molding die of claim 4, wherein: the ejection hole is a non-through barrel hole, an ejection guide hole communicated with the ejection hole is formed below the ejection hole, and correspondingly, an ejection guide column matched with the ejection guide hole is fixed at the bottom of the ejection plate.