CN210254234U

CN210254234U - Magnetic core mould

Info

Publication number: CN210254234U
Application number: CN201920945342.9U
Authority: CN
Inventors: 李海荣; 何建锋
Original assignee: Tongxiang Yutong Electronic Technology Co ltd
Current assignee: Tongxiang Yutong Electronic Technology Co ltd
Priority date: 2019-06-22
Filing date: 2019-06-22
Publication date: 2020-04-07
Anticipated expiration: 2029-06-22

Abstract

The utility model discloses a magnetic core mould, belong to mould technical field, aim at providing one kind make magnetic core bottom end face chamfer and bottom surface fluting efficient and have the not fragile magnetic core mould of protection, including last mould and lower mould, the lower mould include with last mould complex shaping groove, go up the mould including bulldozing the body, it is the cuboid form to bulldoze the body, bulldoze the body including the bottom surface, it is two die-casting archs that the cross-section is right angle ladder form to be equipped with on the bottom surface, two die-casting archs are symmetrical about the vertical section that bulldozes the body, die-casting arch is including the inclined plane that connects gradually, side and top surface, the inclined plane forms 150 contained angles with the bottom surface, the side is connected and extends in same direction with the lateral wall that bulldozes the body, it has the cross-section to be the recess of arcuation to open on the.

Description

Magnetic core mould

Technical Field

The utility model relates to a mould, more specifically say, it relates to a magnetic core mould.

Background

The magnetic core is widely applied to transformers, choke coils, inverters, converters and other various occasions needing electromagnetic conversion, the performance of the magnetic core directly determines the efficiency of the electromagnetic conversion, and the reliability of the magnetic core directly influences the quality of power supply. Magnetic core refers to a sintered magnetic metal oxide composed of various iron oxide mixtures. The production process of the magnetic core needs to be die-cast under certain temperature and pressure, and in the current industry, an upper die and a lower die are generally adopted to form a female die for casting the body of the magnetic core. The common mould is not protected, so the mould is easy to be damaged by impact when being placed; when the common die is used for die casting of the magnetic core, the efficiency of chamfering the end face of the bottom end of the magnetic core and grooving the bottom surface is low.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a make magnetic core bottom end face chamfer and bottom surface fluting efficient and have the not fragile magnetic core mould of protection.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a magnetic core mould, including last mould and lower mould, the lower mould include with last mould complex shaping groove, go up the mould including bulldozing the body, it is the cuboid form to bulldoze the body, it includes the bottom surface to bulldoze the body, it is protruding to be equipped with two die-casting that the cross-section is right angle trapezoidal on the bottom surface, two die-casting are protruding to be symmetrical about the vertical section that bulldozes the body, the die-casting is protruding including the inclined plane that connects gradually, side and top surface, the inclined plane forms 150 contained angles with the bottom surface, the side is connected and extends on same direction with the lateral wall that bulldozes the body, it has the cross-section to be the recess of arcuation to open on the.

By adopting the technical scheme, the pushing and pressing body is inserted into the forming groove, then the magnetic powder in the lower die is subjected to die-casting forming, the bottom surface of the pushing and pressing body extrudes the bottom end surface of the magnetic core at the moment, and the die-casting protrusion performs die-casting grooving on the bottom end surface of the magnetic core; two bellied settings of die-casting of going up the mould for magnetic core fluting one shot forming makes magnetic core die-casting fluting more convenient, efficiency is higher, and the grooved shaping effect of magnetic core is better.

Furthermore, a chamfer ring surrounding the pushing body is arranged on the bottom surface, the chamfer ring comprises an outer wall surface connected with the side wall of the pushing body and extending in the same direction and an inner wall surface connecting the outer wall surface and the bottom surface, and the section of the inner wall surface is arc-shaped.

Through adopting above-mentioned technical scheme, when going up the mould and to the magnetic extrusion, the bottom of magnetic core is stretched into in the chamfer ring by chamfer ring die-casting shaping to the bottom chamfer of magnetic core, set up like this, make the chamfer of magnetic core more convenient, efficiency is higher.

Further, go up the mould and be equipped with the lag with last mould grafting, the lag includes the hollow elastic sleeve body, and the elastic sleeve body includes the holding tank, is equipped with the foam tube that is the cavity form in the holding tank, is equipped with the sponge layer on the inner wall of foam tube.

By adopting the technical scheme, when the upper die is idle, the protecting sleeve is sleeved on the pushing body, namely, the pushing body extends into the accommodating groove, so that the pushing body and the die-casting protrusion are covered by the protecting sleeve for protection, and the pushing body and the die-casting protrusion are not easy to collide and impact and further damaged; the setting on the elastic sleeve body, foam tube and sponge layer for the buffer capacity of lag strengthens greatly, and then makes to go up the mould and receive external impact also difficult damage, also ensures moreover that bulldozes the body and die-casting arch is difficult for being scraped the damage.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic sectional structure view of the pushing body.

Fig. 3 is a schematic structural view of the upper die.

Fig. 4 is an enlarged schematic view of the portion a.

Fig. 5 is a schematic structural view of the upper die matching with the protective sleeve.

Detailed Description

Embodiments of the present invention are further described with reference to fig. 1 to 5.

A magnetic core die which enables chamfering of the end face of the bottom end of a magnetic core and grooving of the bottom face to be efficient and has protection and damage resistance is provided.

The utility model discloses a concrete implementation scheme: including last mould 1 and lower mould 2, lower mould 2 include with last mould 1 complex shaping groove 3, it includes bulldozes body 4 to go up mould 1, it is the cuboid form to bulldoze body 4, it includes bottom surface 5 to bulldoze body 4, be equipped with two die-casting archs 6 that the cross-section is right angle trapezoidy on bottom surface 5, two die-casting archs 6 are symmetrical about the vertical section who bulldozes body 4, the die-casting arch is including the inclined plane 7 that connects gradually, side 9 and top surface 8, inclined plane 7 forms 150 contained angles with bottom surface 5, side 9 is connected and extends in same direction with the lateral wall that bulldozes body 4, it has the recess 10 that the cross-section is the arcuation to open on the top surface 8, the length direction of recess 10 is the same with the length direction of top surface 8.

The pushing and pressing body 4 is inserted into the forming groove 3, then the magnetic powder in the lower die 2 is subjected to die-casting forming, at the moment, the bottom surface 5 of the pushing and pressing body 4 extrudes the bottom end face of the magnetic core, and the die-casting protrusion 6 performs die-casting grooving on the bottom end face of the magnetic core; go up the bellied setting of two die-castings of mould 1 for magnetic core fluting one shot forming makes magnetic core die-casting fluting more convenient, efficiency is higher, and magnetic core fluting shaping effect is better.

The bottom surface 5 is provided with a chamfered ring 12 surrounding the pressing body 4, the chamfered ring 12 includes an outer wall surface 13 connected to the side wall of the pressing body 4 and extending in the same direction, and an inner wall surface 14 connecting the outer wall surface 13 and the bottom surface 5, and the cross section of the inner wall surface 14 is arc-shaped.

Go up mould 1 when extruding the magnetic, the bottom of magnetic core is stretched into in the chamfer ring 12 by chamfer ring 12 die-casting shaping to the bottom chamfer of magnetic core, set up like this, make the chamfer of magnetic core more convenient, efficiency is higher.

Go up mould 1 and be equipped with the lag 15 of pegging graft with last mould 1, lag 15 includes the hollow elastic sleeve body 16, and elastic sleeve body 16 includes holding tank 17, is equipped with the foam tube 18 that is the cavity form in the holding tank 17, is equipped with sponge layer 19 on the inner wall of foam tube 18.

When the upper die 1 is idle, the protecting sleeve 15 is sleeved on the pushing body 4, namely, the pushing body 4 extends into the accommodating groove 17, so that the pushing body 4 and the die-casting protrusion 6 are covered by the protecting sleeve 15 for protection, and the pushing body 4 and the die-casting protrusion 6 are not easy to collide and impact and are further damaged; the elastic sleeve body 16, the foam tube 18 and the sponge layer 19 are arranged, so that the buffering capacity of the protective sleeve 15 is greatly enhanced, the upper die 1 is further prevented from being damaged by external impact, and the pushing body 4 and the die-casting protrusion 6 are further prevented from being scratched.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the skilled in the art can carry out the common changes and replacements within the technical solution of the present invention.

Claims

1. The utility model provides a magnetic core mould, includes mould and lower mould, the lower mould include with last mould complex shaping groove, characterized by: go up the mould including bulldozing the body, bulldoze the body and be the cuboid form, bulldoze the body and include the bottom surface, it is protruding to be equipped with two die-casting that the cross-section is right angle trapezoidal on the bottom surface, two die-casting are protruding to be symmetrical about the vertical section that bulldozes the body, die-casting is protruding including the inclined plane that connects gradually, side and top surface, the inclined plane forms 150 contained angles with the bottom surface, the side is connected and extends in same direction with the lateral wall that bulldozes the body, it has the cross-section to be the recess of arcuation to open on the top surface, the length direction of recess is the same with.

2. A magnetic core mold according to claim 1, wherein: the bottom surface is provided with a chamfer ring surrounding the pushing body, the chamfer ring comprises an outer wall surface connected with the side wall of the pushing body and extending in the same direction and an inner wall surface connecting the outer wall surface and the bottom surface, and the section of the inner wall surface is arc-shaped.

3. A magnetic core mold according to claim 1, wherein: the upper die is provided with a protecting sleeve which is connected with the upper die in an inserting mode, the protecting sleeve comprises a hollow elastic sleeve body, the elastic sleeve body comprises a containing groove, a hollow foam pipe is arranged in the containing groove, and a sponge layer is arranged on the inner wall of the foam pipe.