CN220517100U

CN220517100U - Ferrite forming male die with groove on upper surface

Info

Publication number: CN220517100U
Application number: CN202223399757.1U
Authority: CN
Inventors: 黄华为; 卢晓强; 张筝; 邵杰栋
Original assignee: Hengdian Group DMEGC Magnetics Co Ltd
Current assignee: Hengdian Group DMEGC Magnetics Co Ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2024-02-23
Anticipated expiration: 2032-12-16

Abstract

The utility model discloses a ferrite molding male die with a groove on the upper surface, and relates to the technical field of magnetic material preparation. The utility model comprises a male die, wherein the male die is cylindrical, and a plurality of shallow grooves are formed in the upper surface of the male die; the shallow grooves are cross shallow grooves with a cross structure, and a plurality of rectangular bosses are arranged between the shallow grooves; the shallow groove comprises a plurality of horizontal long grooves, a plurality of longitudinal long grooves, two horizontal short grooves and two longitudinal short grooves; the two transverse short channels are respectively arranged at two ends of the longitudinal long channels, and the ends of the longitudinal long channels are communicated; the two longitudinal short channels are respectively arranged at two ends of the transverse long channel, and the ends of the transverse long channels are communicated; the shallow slot structure on the upper surface of the male die can ensure that the permanent magnetic ferrite manufactured by wet compression molding can not have the problem of sticking the die in the demolding process, thereby improving the yield and the production efficiency.

Description

Ferrite forming male die with groove on upper surface

Technical Field

The utility model relates to the technical field of magnetic material preparation, in particular to a ferrite forming male die with a groove on the upper surface.

Background

The manufacture of the permanent magnetic ferrite mainly comprises wet pressing molding, and when the blank is molded, no matter whether the blank is square, magnetic steel or magnetic shoe, the blank is stuck on an undershoot head after demolding, the blank is normally taken out and cannot be taken out, and the product defect is caused by forced blank taking: whether the upper surface of the male die is coated with a coating or a finish is added or a release agent is coated, the problem of sticking the die of some products (particularly larger specifications) cannot be solved finally, and the yield and the production efficiency are greatly reduced. The present utility model solves the above problems well.

The utility model discloses a permanent magnet ferrite horn magnetic steel mold structure with a groove, which comprises a mold frame, a mold core connected with the mold frame, and a lower mold sleeved with the mold core, wherein the lower mold is of a magnetic conduction cylinder structure, the upper end surface of the lower mold is fixedly connected with a male mold of a non-magnetic conduction disc structure, the male mold is provided with a plurality of bosses, and the upper end surfaces of the male molds of the bosses are uniformly distributed. The method can not well solve the problem of die sticking, and greatly reduces the defects of yield and production efficiency.

Disclosure of Invention

The utility model overcomes the defect of lower yield and production efficiency caused by unresolved sticking problem in the demoulding process of the permanent magnetic ferrite manufactured by wet compression molding in the prior art, provides the ferrite molding male die with the groove on the upper surface, can effectively solve the sticking problem of the permanent magnetic ferrite in the demoulding process, and improves the yield and the production efficiency.

In order to solve the technical problems, the utility model adopts the following technical scheme: the ferrite forming male die with the groove on the upper surface comprises a male die, wherein the male die is cylindrical, a plurality of shallow grooves are formed in the upper surface of the male die, and the groove depth H of the shallow grooves can be in the range of 0.02-mm-0.1 mm.

The upper surface (parting surface) of the male die is provided with shallow grooves. The groove depth can be as shallow as possible, so that waste of materials is avoided, the grinding amount of the product is increased, and the defect of the product is caused by too deep groove. Conclusion from the experiment; according to different specifications, the groove depth H can be in the range of 0.02-0.1mm with good effect, and the utility model can be used for male dies of various dies of magnetic steel, magnetic shoes and square blocks; the shallow groove structure is added on the upper surface (parting surface) of the male die, so that the problem of product die sticking can be well solved, and the yield and production efficiency of products are improved.

Preferably, the shallow grooves are cross shallow grooves with a cross structure, and a plurality of rectangular bosses are arranged between the shallow grooves.

Preferably, the shallow groove comprises a plurality of horizontal long grooves, a plurality of longitudinal long grooves, two horizontal short grooves and two longitudinal short grooves; the two transverse short channels are respectively arranged at two ends of the longitudinal long channels, and the ends of the longitudinal long channels are communicated; the two longitudinal short channels are respectively arranged at two ends of the transverse long channel, and the ends of the transverse long channels are communicated.

Preferably, the longitudinal long grooves are arranged at equal intervals, the transverse long grooves are arranged at equal intervals, and the groove widths D and the groove distances P of the transverse long grooves, the longitudinal long grooves, the transverse short grooves and the longitudinal short grooves are all equal.

Preferably, the slot width D may range between 2mm and 6mm and the slot pitch P may range between 10mm and 20 mm. According to the shallow grooves of the crossed shallow grooves with the crossed structure, the range of the groove width D can be between 2mm and 6mm according to different specifications, and the range of the inter-groove P can be between 10mm and 20mm, so that the inner effect is good.

Preferably, the shallow groove comprises a plurality of annular grooves, the circle centers of the annular grooves are the same, the outer diameters of the annular grooves are sequentially increased from inside to outside, and an annular boss structure can be formed between every two adjacent annular grooves.

Preferably, the groove widths D1 of the annular grooves are the same, and the groove width D1 of the annular groove may range from 2mm to 6 mm. The shallow grooves with the circular ring-shaped structure can be in a range of 2mm-6mm according to different specifications, and the groove width D1 can be in a range of 2 mm.

Preferably, the distances P1 between the adjacent central circles of the annular grooves are the same. And the permanent magnetic ferrite is convenient to demold.

Compared with the prior art, the utility model has the beneficial effects that: the shallow grooves are added on the upper surface (parting surface) of the male die, so that permanent magnetic ferrite manufactured by wet compression molding can not cause the problem of sticking the die in the demolding process, thereby improving the yield and the production efficiency.

Drawings

FIG. 1 is a schematic diagram of a ferrite molding punch with a groove on the upper surface;

fig. 2 is a schematic structural view of embodiment 2 of the present utility model;

fig. 3 is a schematic structural view of embodiment 3 of the present utility model;

in the figure: the die comprises a male die 1, a shallow groove 2, a crossed shallow groove 3, a rectangular boss 4, a transverse long groove 5, a longitudinal long groove 6, a transverse short groove 7, a longitudinal short groove 8, an annular groove 9 and an annular boss 10.

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The following further describes the technical scheme of the utility model in detail through specific embodiments and with reference to the accompanying drawings:

example 1: referring to fig. 1, a ferrite molding male die with a groove on the upper surface comprises a male die 1, wherein the male die 1 is cylindrical, a plurality of shallow grooves 2 are formed in the upper surface of the male die 1, and the groove depth H of the shallow grooves 2 can be in a range of 0.02-mm-0.1 mm.

The upper surface (parting surface) of the male die is added with a shallow groove 2. The groove depth can be as shallow as possible, so that waste of materials is avoided, the grinding amount of the product is increased, and the defect of the product is caused by too deep groove. Conclusion from the experiment; according to different specifications, the groove depth H can be in the range of 0.02-0.1mm with good effect, and the utility model can be used on male dies 1 of various dies of magnetic steel, magnetic shoes and square blocks; the shallow groove 2 structure is added on the upper surface (parting surface) of the male die 1, so that the problem of product die sticking can be well solved, and the yield and production efficiency of products are improved.

Embodiments are described below:

(1) The upper surface (parting surface) of the male die 1 is designed and processed into a reasonable shallow groove 2 according to the shape and the size;

(2) The green embryo is pressed and formed in the cavity, the upper die rises, then the female die floats downwards or the male die is propped up, the green embryo is completely separated from the cavity, and the phenomenon of die sticking does not occur because the shallow groove 2 is formed on the upper surface of the male die 1, so that the green embryo can be taken out easily;

(3) The green blanks are sintered and ground to form finished products, and the grinding quantity of the products cannot be increased due to shallow slotting, so that the yield and the production efficiency can be greatly improved.

Specific example 2:

referring to fig. 1 and 2, this embodiment is further defined on the basis of embodiment 1, in which the shallow grooves 2 are intersecting shallow grooves 3 with intersecting structures, and a plurality of rectangular bosses 4 are disposed between the shallow grooves 2.

The shallow groove 2 comprises a plurality of horizontal long grooves 5, a plurality of longitudinal long grooves 6, two horizontal short grooves 7 and two longitudinal short grooves 8; the two transverse short channels 7 are respectively arranged at two ends of the longitudinal long channel 6, and the ends of the longitudinal long channels 6 are communicated; the two longitudinal short channels 8 are respectively arranged at two ends of the transverse long channel 5, and the ends of the transverse long channels 5 are communicated. The longitudinal long grooves 6 are arranged at equal intervals, the transverse long grooves 6 are arranged at equal intervals, and the groove widths D and the groove distances P of the transverse long grooves 5, the longitudinal long grooves 6, the transverse short grooves 7 and the longitudinal short grooves 8 are all equal.

The slot width D may range between 2mm-6mm and the slot pitch P may range between 10mm-20 mm. According to the shallow grooves of the crossed shallow grooves with the crossed structure, the range of the groove width D can be 2mm-6mm according to different specifications, and the range of the P between the grooves can be 10mm-20mm, so that the effect is good.

Specific example 3:

referring to fig. 1 and 3, in this embodiment, on the basis of embodiment 1, a shallow groove 2 is further defined, where the shallow groove 2 includes a plurality of annular grooves 9, the annular grooves 9 have the same center, the outer diameters of the annular grooves increase from inside to outside, and an annular boss 10 structure can be formed between two adjacent annular grooves.

The groove widths D1 of the annular grooves 9 are all the same, and the groove width D1 of the annular grooves can range from 2mm to 6 mm. The shallow grooves with the circular ring-shaped structure can be in a range of 2mm-6mm according to different specifications, and the groove width D1 can be in a range of 2 mm. The distance P1 between the adjacent annular groove center circles and the outer circles is the same, so that the permanent magnetic ferrite can be conveniently demoulded.

The above-described embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.

Claims

1. The ferrite forming male die with the groove on the upper surface is characterized by comprising a male die, wherein the male die is cylindrical, a plurality of shallow grooves are formed in the upper surface of the male die, and the groove depth H of the shallow grooves can be in the range of 0.02-mm mm to 0.1 mm.

2. The ferrite forming punch with grooves on the upper surface according to claim 1, wherein the shallow grooves are crossed shallow grooves with a crossed structure, and a plurality of rectangular bosses are arranged between the shallow grooves.

3. The ferrite forming punch with a groove on the upper surface according to claim 2, wherein the shallow groove comprises a plurality of horizontal long grooves, a plurality of longitudinal long grooves, two horizontal short grooves and two longitudinal short grooves; the two transverse short channels are respectively arranged at two ends of the longitudinal long channels, and the ends of the longitudinal long channels are communicated; the two longitudinal short channels are respectively arranged at two ends of the transverse long channel, and the ends of the transverse long channels are communicated.

4. A ferrite moulding punch with grooves on the upper surface according to claim 3, wherein a plurality of longitudinal long grooves are arranged at equal intervals, a plurality of transverse long grooves are arranged at equal intervals, and the groove widths D and the groove distances P of the transverse long grooves, the longitudinal long grooves, the transverse short grooves and the longitudinal short grooves are all equal.

5. A ferrite moulding punch with grooves in its upper surface as claimed in claim 4, wherein the groove width D can range between 2mm-6mm and the groove pitch P can range between 10mm-20 mm.

6. The ferrite forming male die with grooves on the upper surface according to claim 1, wherein the shallow grooves comprise a plurality of annular grooves, the circle centers of the annular grooves are the same, the outer diameters of the annular grooves are sequentially increased from inside to outside, and an annular boss structure can be formed between every two adjacent annular grooves.

7. A ferrite moulding punch with a recess in its upper surface as claimed in claim 6, wherein the annular recess has a groove width D1 which is in the range of 2mm-6 mm.

8. The ferrite mold punch with grooves on the upper surface as set forth in claim 7, wherein the pitch P1 between the center circles of adjacent ones of said annular grooves is the same.