CN213400855U - Magnetic core compression molding mould - Google Patents
Magnetic core compression molding mould Download PDFInfo
- Publication number
- CN213400855U CN213400855U CN202022141387.6U CN202022141387U CN213400855U CN 213400855 U CN213400855 U CN 213400855U CN 202022141387 U CN202022141387 U CN 202022141387U CN 213400855 U CN213400855 U CN 213400855U
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- type
- shaped groove
- base
- magnetic core
- stick
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- 238000000748 compression moulding Methods 0.000 title claims description 7
- 238000001125 extrusion Methods 0.000 claims abstract description 60
- 238000007493 shaping process Methods 0.000 claims abstract description 17
- 210000004907 gland Anatomy 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract description 11
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000005389 magnetism Effects 0.000 abstract description 2
- 230000001629 suppression Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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- Powder Metallurgy (AREA)
Abstract
The utility model discloses a magnetic core suppression forming die, including female type, the type of going up, type and well stick down, the shaping chamber that link up about the inside of female type is equipped with, the type of going up inserts female type from the both ends in shaping chamber respectively with type down, the type of going up includes the upper base and locates the last extrusion post of upper base top, the type of going down includes lower base and locates the lower extrusion post of base top down, be equipped with the last type stick chamber that runs through on upper base and the last extrusion post, be equipped with the lower type stick chamber that runs through on lower base and the lower extrusion post, the position in last type stick chamber and lower type stick chamber is corresponding, the well stick is followed the bottom of lower base and is followed supreme down and passed down type stick chamber and last type stick chamber in proper order down, be equipped with the recess on the lateral wall of going up the extrusion post, the recess is linked together. The utility model discloses a female type, upper type, lower type and well stick's cooperation are used and have been guaranteed the off-the-shelf homogeneity of magnetism, and the setting of recess can increase the discharge amount of air, reduces the wearing and tearing between powder and the mould, has prolonged the life of mould, has reduced the use cost of mould.
Description
Technical Field
The utility model relates to a magnetic core production facility technical field, in particular to magnetic core press forming die.
Background
Magnetic core refers to a sintered magnetic metal oxide composed of various iron oxide mixtures. The magnetic core is formed by pressing iron powder through a die and then sintering the iron powder in a high-temperature sintering furnace under the protection of nitrogen at a high temperature. The magnetic core is a commonly used magnetic material, has excellent electromagnetic performance, and is widely applied to the fields of communication electronics, household appliances and the like.
Along with the continuous development of magnetic core trade, the development and the design of magnetic core are towards utmost limit development such as oversize, super-miniaturized and complicated, because the complicated requirement that leads to the die design of magnetic core constantly improves, reach the demand that satisfies the customer through different die design, if improper design, will appear the product density easy nature after the inhomogeneous sintering or size scheduling problem that does not reach standard.
In the prior art, there are many molds for manufacturing magnetic cores, for example, patent application No. CN201921045302.5 discloses a molding mold for a special-shaped magnetic core, which belongs to the technical field of magnetic core processing. The forming die comprises a female die main body, an upper die assembly, a first lower die assembly and a second lower die assembly, wherein the upper die assembly comprises an upper die main body and an upper die punch, a first through hole is formed in the female die main body, and the upper die punch is in sliding fit with the first through hole; the first lower-type assembly comprises a first lower-type main body, a second through hole and two groups of symmetrical first lower-type punches are arranged on the first lower-type main body, and the first lower-type punches are in sliding fit with the first through hole; the second lower die assembly comprises a second lower die main body, a second lower die punch is arranged on the second lower die main body, and the second lower die punch penetrates through the second through hole to be in sliding fit with the first lower die punch. The utility model provides a forming die can guarantee the homogeneity of shaping product density to can improve the outward appearance qualification rate and the production efficiency of product. When adopting this mould to carry out compression moulding to the magnetic core, because the relative extrusion in-process shaping intracavity of upper die assembly and first lower die assembly has the air, the pressure that causes when the extrusion is great, can cause great wearing and tearing to the lower die assembly of second, has improved the maintenance cost of mould, has reduced the life of mould, has increased the use cost of mould.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, and the magnetic core pressing forming die is simple in structure, convenient to use and capable of avoiding die abrasion.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a magnetic core suppression forming die, includes female type, upper mould, lower type and well stick, the die cavity that link up about the inside of female type is equipped with, upper mould and lower type insert female type from the both ends in die cavity respectively, upper mould includes the base and locates the last extrusion post of base top, lower type includes down the base and locates the lower extrusion post of base top down, be equipped with the upper mould stick chamber that runs through on upper base and the last extrusion post, be equipped with the lower mould stick chamber that runs through on base and the lower extrusion post down, the position of upper mould stick chamber and lower mould stick chamber is corresponding, the well stick is followed the bottom of base down and is supreme passed lower mould stick chamber and upper mould stick chamber down in proper order, be equipped with the exhaust duct on the lateral wall of upper mould post, the exhaust duct is linked together with upper mould stick chamber.
The utility model discloses a be equipped with the air discharge duct on the lateral wall of last extrusion post, can increase the discharge amount of shaping intracavity air, reduce the wearing and tearing of powder to well stick in the magnetic core press forming process, the life of stick in the improvement reduces the maintenance and the use cost of mould.
Furthermore, the upper U-shaped rod cavity is a first U-shaped cavity, the lower U-shaped rod cavity comprises a second U-shaped cavity, a third U-shaped cavity and a cylindrical cavity which are communicated with each other from top to bottom and are sequentially enlarged in size, and the structure and the size of the cross section of the first U-shaped cavity are the same as those of the cross section of the second U-shaped cavity.
Further, the lower base comprises a first lower column body and a second lower column body which are arranged in a ladder shape, the first lower column body is arranged above the second lower column body, the lower extrusion column comprises a first lower extrusion part and a second lower extrusion part arranged below the first lower extrusion part, and the first lower extrusion part and the second lower extrusion part are integrally formed.
Further, the second U-shaped groove is formed in the first lower extrusion portion, the third U-shaped groove is formed in the second lower extrusion portion and the first lower post, and the post-shaped grooves are formed in the first lower post and the second lower post.
Further, the diameter of the second lower cylinder is larger than the diameter of the first lower cylinder.
Further, the well stick includes the base and locates the portion of stretching into of base top, stretch into the portion from last to including shaping portion and connecting portion down, the base with the post-shaped groove phase-match, connecting portion with third U-shaped groove phase-match, shaping portion with first U-shaped groove and second U-shaped groove phase-match.
Furthermore, the height of the base is equal to the depth of the cylindrical groove, the length of the connecting part is equal to the depth of the third U-shaped groove, and the length of the forming part is larger than the depth of the second U-shaped groove.
Further, the female die further comprises a female die body and a gland arranged above the female die body, a corner cleaning is arranged at the joint of the female die body and the gland, threads are arranged on the outer side wall of the female die body, and the forming cavity penetrates through the female die body and the gland.
Further, the upper base comprises a first upper column body and a second upper column body which are arranged in a ladder shape, and the first upper column body is arranged above the second upper column body.
Further, the second upper cylinder is larger than the diameter of the first upper cylinder.
The utility model relates to a magnetic core press forming die's beneficial effect: the utility model has the advantages of simple structure, high durability and convenient use, use through the cooperation of adopting female type, the upper mold, lower type and well stick, the quantity of the position control shaping intracavity powder of adjustable lower type in the press forming process guarantees the off-the-shelf homogeneity of magnetism, and through be equipped with the air discharge duct on the lateral wall of the last extrusion post of upper type, can increase the discharge amount of shaping intracavity air, reduce the pressure of shaping intracavity, thereby reduce powder and well stick, the upper mold, wearing and tearing between the lower type, the life of mould has been prolonged, the maintenance and the use cost of mould have been reduced.
Drawings
Fig. 1 is a cross-sectional view of a magnetic core press forming die master of the present invention;
fig. 2 is a top view of a magnetic core compression molding die master of the present invention;
fig. 3 is a top view of a magnetic core press forming upper mold of the present invention;
fig. 4 is a side view of the upper mold of the magnetic core press forming mold of the present invention;
fig. 5 is a top view of a lower mold of a magnetic core press forming mold according to the present invention;
fig. 6 is a side view of a lower mold of a magnetic core press forming mold according to the present invention;
FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6;
fig. 8 is a side view of a rod in a magnetic core press forming mold according to the present invention;
FIG. 9 is a cross-sectional view taken along line B-B of FIG. 8;
fig. 10 is a schematic view of a three-dimensional structure of a magnetic core processed by the magnetic core press forming die of the present invention.
The above reference numerals: 1-female body, 2-gland, 3-chamfer, 4-thread, 5-forming cavity, 6-upper base, 61-first upper column, 62-second upper column, 7-upper extrusion column, 8-first U-shaped groove, 9-exhaust groove, 10-lower base, 101-first lower column, 102-second lower column, 11-lower extrusion column, 111-first lower extrusion portion, 112-second lower extrusion portion, 12-second U-shaped groove, 13-third U-shaped groove, 14-column groove, 15-base, 16-extension portion, 161-forming portion, 162-connecting portion, 17-core body, 18-U-shaped groove.
Detailed Description
The present invention is further described with reference to the following drawings and examples, but these embodiments do not limit the scope of the present invention in any way.
Example 1
The utility model provides a magnetic core compression moulding mould, includes female type, cope match, drag match and well stick, female type includes female type body 1 and locates gland 2 of female type body 1 top, female type body 1 is equipped with clear angle 3 with gland 2's junction, and is equipped with screw thread 4 on its lateral wall, gland 2's diameter is greater than female type body 1's diameter, female type body 1 and gland 2 inside are equipped with the shaping chamber 5 that runs through, in cope match and drag match insert female type from the upper end and the lower extreme of shaping chamber 5 respectively, the powder that is located shaping chamber 5 is by cope match and drag match.
The upper mold comprises an upper base 6 and an upper extrusion column 7, the upper base 6 comprises a first upper column body 61 and a second upper column body 62 which are arranged in a ladder shape, the first upper column body 61 is arranged above the second upper column body 62, the upper extrusion column 7 is arranged above the first upper column body 61, and the second upper column body 62 is larger than the diameter of the first upper column body 61. The upper base 6 and the upper extrusion column 7 are provided with penetrating upper molding rod cavities which sequentially penetrate the upper extrusion column 7, the first upper column 61 and the second upper column 62 and are first U-shaped grooves 8, and the upper molding rod cavities are convenient for inserting the middle rod into the upper mold.
And an exhaust groove 9 is formed in the side wall of the upper extrusion column 7, and the exhaust groove 9 is communicated with the upper molding rod cavity. Because the air in the forming cavity 5 persists, when the upper die and the lower die relatively extrude the powder in the forming cavity 5, the pressure in the space formed by the upper die, the lower die, the middle rod and the forming cavity 5 continuously increases, the exhaust duct 9 communicated with the upper die rod cavity is arranged on the side wall of the upper extrusion column 7, when the upper die and the lower die extrude the powder, the air can be discharged from the exhaust duct 9, the air discharge amount is increased, the friction damage of the powder to the middle rod, the upper die and the lower die is reduced, the service life of the middle rod is prolonged, and therefore the maintenance and the use cost of the die are reduced.
The lower die comprises a lower base 10 and a lower extrusion column 11, wherein the lower base 10 comprises a first lower column body 101 and a second lower column body 102 which are arranged in a ladder shape, the first lower column body 101 is arranged above the second lower column body 102, the lower extrusion column 11 is arranged above the first lower column body 101, and the diameter of the second lower column body 102 is larger than that of the first lower column body 101. The lower base 10 and the lower extrusion column 11 are provided with a lower through rod cavity, and the lower through rod cavity sequentially penetrates through the lower extrusion column 11, the first lower column 101 and the second lower column 102. The upper mold rod cavity and the lower mold rod cavity are corresponding in position, and the middle rod sequentially penetrates through the lower mold rod cavity and the upper mold rod cavity from bottom to top of the bottom of the second lower column 102.
The lower-profile rod cavity comprises a second U-shaped groove 12, a third U-shaped groove 13 and a cylindrical groove 14 which are communicated with each other from top to bottom and are sequentially enlarged in size, the structure and the size of the cross section of the first U-shaped groove 8 are the same as those of the cross section of the second U-shaped groove 12, and the shape of the cross section of the third U-shaped groove 13 is the enlarged shape of the cross section of the first U-shaped groove 8.
The lower extrusion column 11 includes a first lower extrusion portion 111 and a second lower extrusion portion 112 disposed below the first lower extrusion portion 111, and the first lower extrusion portion 111 and the second lower extrusion portion 112 are integrally formed. The second u-shaped groove 12 is formed on the first lower extrusion part 111, the third u-shaped groove 13 is formed on the second lower extrusion part 112 and the first lower post 101, and the post-shaped groove 14 is formed on the first lower post 101 and the second lower post 102.
The middle rod comprises a base 15 and an extending part 16 arranged above the base 15, the extending part 16 comprises a forming part 161 and a connecting part 162 from top to bottom, the base 15 is matched with the column-shaped groove 14, the connecting part 162 is matched with the third u-shaped groove 13, the forming part 161 is matched with the first u-shaped groove 8 and the second u-shaped groove 12, and the cross sections of the forming part 161 and the first u-shaped groove 8 and the second u-shaped groove 12 are the same.
The height of the base 15 is equal to the depth of the column-shaped groove 14, the length of the connecting part 162 is equal to the depth of the third u-shaped groove 13, and the length of the forming part 161 is greater than the depth of the second u-shaped groove 12, so that the forming part 161 can be inserted into the second u-shaped groove 12 from bottom to top from the first u-shaped groove 8 of the lower form, and the formed core has a u-shaped groove 18.
The utility model relates to a magnetic core compression moulding mould's theory of operation and application method:
when the utility model works, the female die is installed, the lower die is inserted into the forming cavity 5 from the bottom of the female die upwards, and the middle rod is inserted into the lower die from the bottom of the lower die upwards, so that the base 15 of the middle rod is positioned in the column-shaped groove 14 to play a role of limiting, the connecting part 162 is positioned in the third U-shaped groove 13, and the forming part 161 is inserted into the second U-shaped groove 12 and extends out of a part upwards; the powder is filled in the forming cavity 5, the upper die is inserted into the forming cavity 5 from the top of the female die downwards, the part of the forming part 161 which is inserted into the second U-shaped groove 12 and extends upwards is inserted into the first U-shaped groove 8, the upper die and the lower die extrude the powder between the upper die and the lower die oppositely, and a large amount of air can be discharged in the extrusion process by arranging the air discharge groove 9 on the side wall of the upper extrusion column 7, so that the abrasion of the die is avoided;
by means of the opposite extrusion of the upper and lower forms, the powder is pressed between the upper and lower forms into a block-shaped core body 17, and because a middle rod is also inserted between the upper and lower forms, and the cross section of the forming part 161 of the middle rod is the same as that of the first U-shaped groove 8 and the second U-shaped groove 12, a through U-shaped groove 18 is formed on the core body 17, and then a green body for manufacturing the finished core is pressed;
and after the press forming is finished, the upper mold moves upwards to be separated from the female mold, the lower mold moves upwards to push the green body for manufacturing the finished magnetic core out of the female mold, and then sintering is carried out to obtain the finished magnetic core.
It will be further understood that the terms "first," "second," and the like, are used herein to describe various elements, but these elements should not be limited by these terms. These terms are only used to distinguish one element from another.
As used herein, the terms "upper," "lower," "left," "right," and the like are used for convenience of description based on the orientation as shown in the figures of the drawings, which may vary from one actual device to another depending on the manner in which the device is arranged.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent changes without departing from the technical scope of the present invention.
Claims (10)
1. The utility model provides a magnetic core compression moulding mould, includes female type, upper mould, lower type and well stick, the shaping chamber that link up about the inside of female type is equipped with, upper mould and lower type insert female type from the both ends in shaping chamber respectively, the upper mould includes the upper base and locates the last extrusion post of upper base top, the lower type includes lower base and locates the lower extrusion post of lower base top, its characterized in that: the utility model discloses a well base is equipped with the exhaust duct on the lateral wall of last extrusion post, be equipped with the last type stick chamber that runs through on upper base and the last extrusion post, be equipped with the lower type stick chamber that runs through on base and the lower extrusion post down, it is corresponding with the position in lower type stick chamber to go up the type stick chamber, the well stick is supreme down to pass down type stick chamber and last type stick chamber in proper order from the bottom of base down, be equipped with the exhaust duct on the lateral wall of going up the extrusion post, the exhaust duct is linked together with last type stick.
2. The magnetic core press-forming die according to claim 1, wherein: the upper U-shaped rod cavity is a first U-shaped groove, the lower U-shaped rod cavity comprises a second U-shaped groove, a third U-shaped groove and a cylindrical groove which are communicated with each other from top to bottom and are sequentially enlarged in size, and the structure and the size of the cross section of the first U-shaped groove are the same as those of the cross section of the second U-shaped groove.
3. The magnetic core press-forming die according to claim 2, wherein: the lower base comprises a first lower column body and a second lower column body which are arranged in a ladder shape, the first lower column body is arranged above the second lower column body, the lower extrusion column comprises a first lower extrusion part and a second lower extrusion part arranged below the first lower extrusion part, and the first lower extrusion part and the second lower extrusion part are integrally formed.
4. A magnetic core press-forming die as claimed in claim 3, wherein: the second U-shaped groove is formed in the first lower extrusion part, the third U-shaped groove is formed in the second lower extrusion part and the first lower column body, and the column-shaped groove is formed in the first lower column body and the second lower column body.
5. A magnetic core press-forming die as claimed in claim 3, wherein: the diameter of the second lower cylinder is larger than that of the first lower cylinder.
6. A magnetic core press-forming die as claimed in claim 3, wherein: the center rod includes the base and locates the portion of stretching into of base top, stretch into the portion from last to including shaping portion and connecting portion down, the base with the post-shaped groove phase-match, connecting portion with third U-shaped groove phase-match, shaping portion with first U-shaped groove and second U-shaped groove phase-match.
7. The magnetic core press-forming die according to claim 6, wherein: the height of the base is equal to the depth of the cylindrical groove, the length of the connecting part is equal to the depth of the third U-shaped groove, and the length of the forming part is larger than the depth of the second U-shaped groove.
8. The magnetic core press-forming die according to claim 1, wherein: the female die further comprises a female die body and a gland arranged above the female die body, a corner cleaning is arranged at the joint of the female die body and the gland, threads are arranged on the outer side wall of the female die body, and the forming cavity penetrates through the female die body and the gland.
9. The magnetic core press-forming die according to claim 1, wherein: the upper base comprises a first upper column body and a second upper column body which are arranged in a step shape, and the first upper column body is arranged above the second upper column body.
10. The magnetic core press-forming die according to claim 9, wherein: the second upper cylinder is larger than the diameter of the first upper cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022141387.6U CN213400855U (en) | 2020-09-27 | 2020-09-27 | Magnetic core compression molding mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022141387.6U CN213400855U (en) | 2020-09-27 | 2020-09-27 | Magnetic core compression molding mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213400855U true CN213400855U (en) | 2021-06-08 |
Family
ID=76183167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022141387.6U Expired - Fee Related CN213400855U (en) | 2020-09-27 | 2020-09-27 | Magnetic core compression molding mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213400855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119116119A (en) * | 2024-10-25 | 2024-12-13 | 博罗县何氏模具制造有限公司 | A processing mold and processing method of ceramic insulator |
-
2020
- 2020-09-27 CN CN202022141387.6U patent/CN213400855U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119116119A (en) * | 2024-10-25 | 2024-12-13 | 博罗县何氏模具制造有限公司 | A processing mold and processing method of ceramic insulator |
| CN119116119B (en) * | 2024-10-25 | 2025-06-13 | 博罗县何氏模具制造有限公司 | A processing mold and processing method of ceramic insulator |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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