CN105666936A - Die for manufacturing magnet ring - Google Patents
Die for manufacturing magnet ring Download PDFInfo
- Publication number
- CN105666936A CN105666936A CN201610194003.2A CN201610194003A CN105666936A CN 105666936 A CN105666936 A CN 105666936A CN 201610194003 A CN201610194003 A CN 201610194003A CN 105666936 A CN105666936 A CN 105666936A
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- CN
- China
- Prior art keywords
- ring
- magnetic
- magnet
- magnetic field
- magnet ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
- B30B15/022—Moulds for compacting material in powder, granular of pasta form
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The invention discloses a die for manufacturing a magnet ring. The die is molded at a time and is excellent in magnet ring performance. The die comprises a fixed die body and a movable die body arranged below the fixed die body, a magnetic field orientation device is arranged between the fixed die body and the movable die body and comprises an outer magnetism conductive check ring and an inner magnetism-free check ring, and an annular space formed between the outer check ring and the inner check ring is filled with a magnetic field orientation magnet; the magnetic field orientation magnet is formed by at least three fan-shaped rare earth magnet bodies in a surrounding manner, and the polarities of the rare earth magnet bodies are the same; a magnetism conductive mold core is arranged in the movable die body, and a radiation magnetic field composed of the outer magnetism conductive check ring, the orientation magnet and the magnetism conductive mold core is used for conducting orientation on the magnet ring. The die has the beneficial effects that the magnetic field orientation device can enable ferrite magnetic powder in a magnetic plastic material to be arranged according to requirements, and therefore it is guaranteed that the performance of the magnet ring is excellent.
Description
Technical field
The present invention relates to a kind of mould for the manufacture of magnet ring.
Background technology
Traditional magnet ring rushes magnetic machine by injection moulding or sintering magnet ring to rush magnetic acquisition, but gained magnet ring performance is general, if not reaching service requirements, just adopting bonding rare earth to magnetize and obtaining, but production cost just adds a lot.
Summary of the invention
Technical problem to be solved by this invention is: the mould for the manufacture of magnet ring providing a kind of once shaped and magnet ring excellent property.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of mould for the manufacture of magnet ring, comprise cover half and it is arranged on the dynamic model below cover half, magnetic field orientating device it is provided with between described fixed half and moving half, magnetic field orientating device comprises leads the outer back-up ring of magnetic and without magnetic inner shield ring, it is filled with magnetic field orientating magnetite in the annular space formed between outer back-up ring and inner shield ring, magnetic field orientating magnetite is centered around by least three fan-shaped rare earth magnetites and is formed together, the polarity of all rare earth magnetites is identical, it is provided with in dynamic model and leads magnetic-type core, lead the outer back-up ring of magnetic, orientation magnetite and lead magnetic-type core and form a radiation field magnet ring is carried out orientation.
The thickness of described rare earth magnetite is equal with inner shield ring height, the lower surface of cover half and the spacing >=2.3mm of inner shield ring upper surface, leads the upper surface of magnetic-type core and the distance >=2.3mm of inner shield ring lower surface.
The invention has the beneficial effects as follows: utilize magnetic field orientating device to be arranged on request by the ferromagnetic oxide powder in magnetic moulding material, thus ensure the excellent property of gained magnet ring, adopt common magnetic moulding material just can produce the performance magnet ring suitable with Agglutinate neodymium-iron-boron magnet ring, thus greatly reduce material cost.
Accompanying drawing explanation
Fig. 1 is the structure iron of the present invention for the manufacture of the mould of magnet ring;
Fig. 2 is the structure iron of magnetic field orientating device in Fig. 1;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is A place partial enlargement figure in Fig. 1.
In figure: 1, cover half, 2, dynamic model, 3, outer back-up ring, 4, inner shield ring, 5, rare earth magnetite, 6, lead magnetic-type core, 7, guide pillar, 8, magnet ring cavity, the 9, first step, the 10, the 2nd step.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the invention scheme is described in detail.
Such as Fig. 1, Fig. 2, shown in Fig. 3, mould for the manufacture of magnet ring of the present invention, comprise cover half 1 and it is arranged on the dynamic model 2 below cover half 1, it is provided with magnetic field orientating device between described cover half 1 and dynamic model 2, magnetic field orientating device comprises leads the outer back-up ring 3 of magnetic and without magnetic inner shield ring 4, it is filled with magnetic field orientating magnetite in the annular space formed between outer back-up ring 3 and inner shield ring 4, magnetic field orientating magnetite is centered around by least three fan-shaped rare earth magnetites 5 and is formed together, the polarity of all rare earth magnetites 5 is identical, it is provided with in dynamic model 2 and leads magnetic-type core 6, lead the outer back-up ring 3 of magnetic, orientation magnetite and lead magnetic-type core 6 and form a radiation field magnet ring is carried out orientation.Radially oriented anisotropy magnet ring can be produced. Lead and in magnetic-type core 6, it is provided with guide pillar 7, upper end and the cover half 1 of guide pillar 7 offset, the upper surface leading magnetic-type core 6 is stretched in inner shield ring 4, lead upper end outside surface and inner shield ring 4 contacted inner surfaces of magnetic-type core 6, lead the internal surface of magnetic-type core 6 and the outside surface laminating of guide pillar 7, the lower end of cover half 1 stretches in inner shield ring 4 and has gap between this end sidewall of cover half 1 and inner shield ring 4 upper end inwall, inner shield ring 4 inwall, the upper surface leading magnetic-type core 6, form magnet ring cavity 8 between the upper end outside surface of guide pillar 7 and the lower surface of cover half 1. Cover half 1 and dynamic model 2 adopt non-magnetic material, and guide pillar 7 adopts height to lead the material of rate.
As shown in Figure 4, described inner shield ring 4 lower end inner wall is provided with the first step 9, guide pillar 7 outer wall is provided with the 2nd step 10, the upper surface leading the upper surface of magnetic-type core 6, the upper surface of the first step 9 and the 2nd step 10 is put down together, lead the outside surface of magnetic-type core 6 and the internal surface laminating of the first step 9, lead the internal surface of magnetic-type core 6 and the outside surface laminating of the 2nd step 10. The benefit arranged like this is leading magnetic-type core 6 when upwards releasing magnet ring, leads magnetic-type core 6 and only produces friction with the first step 9 and the 2nd step 10, and can not with inner shield ring 4 inwall and guide pillar 7 outside surface friction. The surface of friction of the first step 9 and the 2nd step 10 is not the forming surface of magnet ring, and the magnet ring forming surface at the outside surface place of the inwall of inner shield ring 4 and guide pillar 7 can not produce abrasion with leading magnetic-type core 6 to rub, so can not the sizing of magnet ring be had an impact.
The thickness of described rare earth magnetite 5 is highly equal with inner shield ring 4, the lower surface of cover half 1 and the spacing >=2.3mm of inner shield ring 4 upper surface, leads the upper surface of magnetic-type core 6 and the distance >=2.3mm of inner shield ring 4 lower surface. The both ends of the surface of such magnet ring are also in the magnetic field that rare earth magnetite 5 produces completely, thus ensure the arrangement of the magnetic in magnet ring further rationally, obtain the magnet ring of excellent property.
The working process of the present invention is: when producing, rare earth magnetite 5 can produce a closed radiation magnetic circuit, when the magnetic moulding material melted is entered after in magnet ring cavity 8 by the gap between cover half 1 and inner shield ring 4, ferromagnetic oxide powder in magnetic moulding material, by radial radiation arrangement in magnet ring cavity 8 under the effect of radiation magnetic circuit, just obtains the magnet ring of excellent property after waiting magnetic moulding material to cool.
Claims (2)
1. for the manufacture of the mould of magnet ring, comprise cover half and it is arranged on the dynamic model below cover half, it is characterized in that: between described fixed half and moving half, be provided with magnetic field orientating device, magnetic field orientating device comprises leads the outer back-up ring of magnetic and without magnetic inner shield ring, it is filled with magnetic field orientating magnetite in the annular space formed between outer back-up ring and inner shield ring, magnetic field orientating magnetite is centered around by least three fan-shaped rare earth magnetites and is formed together, the polarity of all rare earth magnetites is identical, it is provided with in dynamic model and leads magnetic-type core, lead the outer back-up ring of magnetic, orientation magnetite and lead magnetic-type core and form a radiation field magnet ring is carried out orientation.
2. the mould for the manufacture of magnet ring according to claim 1, it is characterized in that: the thickness of described rare earth magnetite is equal with inner shield ring height, the lower surface of cover half and the spacing >=2.3mm of inner shield ring upper surface, lead the upper surface of magnetic-type core and the distance >=2.3mm of inner shield ring lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610194003.2A CN105666936B (en) | 2016-03-31 | 2016-03-31 | For manufacturing the mould of magnet ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610194003.2A CN105666936B (en) | 2016-03-31 | 2016-03-31 | For manufacturing the mould of magnet ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105666936A true CN105666936A (en) | 2016-06-15 |
| CN105666936B CN105666936B (en) | 2017-11-10 |
Family
ID=56224819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610194003.2A Active CN105666936B (en) | 2016-03-31 | 2016-03-31 | For manufacturing the mould of magnet ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105666936B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110460211A (en) * | 2019-07-16 | 2019-11-15 | 宁波韵升粘结磁体有限公司 | A kind of mold being molded permanent magnet for manufacturing anisotropy |
| CN111415795A (en) * | 2019-12-31 | 2020-07-14 | 上海三环磁性材料有限公司 | Anisotropic bonded ferrite plane bipolar orientation magnetization mold |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007191787A (en) * | 2005-12-19 | 2007-08-02 | Nissan Motor Co Ltd | Die for high temperature pressure molding, method for producing magnet, and magnet |
| CN201799607U (en) * | 2010-09-08 | 2011-04-20 | 横店集团东磁股份有限公司 | Molding die for pressing magnetic powder into multi-pole radial product |
| CN102416471A (en) * | 2012-01-09 | 2012-04-18 | 湖南航天工业总公司 | Pressing mold for manufacturing amplitude/multi-polar oriented whole permanent magnetic ring |
| CN202377532U (en) * | 2012-01-09 | 2012-08-15 | 湖南航天工业总公司 | Pressing die for preparing radial direction-oriented integrated permanent magnet ring |
| CN204196309U (en) * | 2014-07-31 | 2015-03-11 | 广州聚森精密模具有限公司 | Magnet ring forming mould tool |
| CN205395255U (en) * | 2016-03-31 | 2016-07-27 | 张家港倍恩特磁塑科技有限公司 | A mould for making magnetic ring |
-
2016
- 2016-03-31 CN CN201610194003.2A patent/CN105666936B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007191787A (en) * | 2005-12-19 | 2007-08-02 | Nissan Motor Co Ltd | Die for high temperature pressure molding, method for producing magnet, and magnet |
| CN201799607U (en) * | 2010-09-08 | 2011-04-20 | 横店集团东磁股份有限公司 | Molding die for pressing magnetic powder into multi-pole radial product |
| CN102416471A (en) * | 2012-01-09 | 2012-04-18 | 湖南航天工业总公司 | Pressing mold for manufacturing amplitude/multi-polar oriented whole permanent magnetic ring |
| CN202377532U (en) * | 2012-01-09 | 2012-08-15 | 湖南航天工业总公司 | Pressing die for preparing radial direction-oriented integrated permanent magnet ring |
| CN204196309U (en) * | 2014-07-31 | 2015-03-11 | 广州聚森精密模具有限公司 | Magnet ring forming mould tool |
| CN205395255U (en) * | 2016-03-31 | 2016-07-27 | 张家港倍恩特磁塑科技有限公司 | A mould for making magnetic ring |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110460211A (en) * | 2019-07-16 | 2019-11-15 | 宁波韵升粘结磁体有限公司 | A kind of mold being molded permanent magnet for manufacturing anisotropy |
| CN110460211B (en) * | 2019-07-16 | 2022-02-15 | 宁波韵升粘结磁体有限公司 | Mold for manufacturing anisotropic injection molding permanent magnet |
| CN111415795A (en) * | 2019-12-31 | 2020-07-14 | 上海三环磁性材料有限公司 | Anisotropic bonded ferrite plane bipolar orientation magnetization mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105666936B (en) | 2017-11-10 |
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