CN105562684A - Mold for preparing permanent magnetic ferrite - Google Patents
Mold for preparing permanent magnetic ferrite Download PDFInfo
- Publication number
- CN105562684A CN105562684A CN201511020276.7A CN201511020276A CN105562684A CN 105562684 A CN105562684 A CN 105562684A CN 201511020276 A CN201511020276 A CN 201511020276A CN 105562684 A CN105562684 A CN 105562684A
- Authority
- CN
- China
- Prior art keywords
- regulating wheel
- mold
- permanent
- locking tooth
- core bar
- 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.)
- Granted
Links
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 26
- 230000001105 regulatory effect Effects 0.000 claims description 32
- 238000003754 machining Methods 0.000 abstract description 2
- 230000001174 ascending effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910000828 alnico Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
Abstract
The invention belongs to the technical field of machining, and particularly relates to a mold for preparing permanent magnetic ferrite. The technical problem that design in the prior art is not reasonable is solved. The mold for preparing the permanent magnetic ferrite comprises an upper mold rod and a lower mold base. The upper mold rod and a pressure device are connected. A mold hole is formed in the lower mold base. A core rod capable of vertically ascending and descending is arranged in the mold hole in a penetrating manner. The core rod is sleeved with a barrel-shaped body in a sliding manner. The upper end of the barrel-shaped body is located in annular space, the lower end of the annular space is closed through the barrel-shaped body, and therefore an annular mold cavity is formed. The core rod is sleeved with an adjusting wheel. The adjusting wheel and the core rod are in threaded connection. When the adjusting wheel ascends or descends relative to the core rod, the depth of the annular mold cavity can be adjusted, and the lower end of the core rod is connected with a demolding drive device. The mold has the beneficial effects that after the equipment is adjusted according to needs, products with different thicknesses can be produced, and the product quality is stable; and assembling is easy, and the work stability is good.
Description
Technical field
The invention belongs to Machining Technology field, particularly relate to a kind of permanent-magnet ferrite and prepare mould.
Background technology
Permanent magnet is a kind of alnico magnets, can be natural products, also can by manually manufacturing.Extensively with dry electronics, electrically, machinery, transport, in the every field such as medical treatment and daily necessities.Mold use can accelerate the production of product greatly, but the product structure poor stability that current mould is produced, and the product needed for different size uses different moulds, increases the production cost of product.In order to solve prior art Problems existing, people have carried out long-term exploration, propose solution miscellaneous.
Such as, Chinese patent literature discloses a kind of mould [application number: 201320876794.9] preparing permanent ferrite prefiring material multiple aperture blank, comprises mould and is made up of mold and bed die two parts; Mold overall structure is cuboid, and has four measure-alike grooves, and between adjacent two grooves, limit spacing is 120mm, and four grooves are distributed in mold symmetrically and evenly; Bed die is made up of substrate and four guide rail columns, and substrate overall structure is cuboid, and four guide rail column overall structures are measure-alike cuboid, and the limit spacing between two adjacent guide rail columns is 120.05mm, and four guide rail columns are distributed in bed die symmetrically and evenly.The advantage of this invention: the quantity delivered that improve oxygen in sintering process, ensure that the sintering quality of same batch products; Reduce the kiln sintering time cycle simultaneously, make technique reasonable more economically.
Above-mentioned scheme improves the subproblem of prior art to a certain extent, but the program also at least exists following defect: design unreasonable, complex structure, assemble loaded down with trivial details, the technical problem that the product stability produced can differ from.
Summary of the invention
The object of the invention is for the problems referred to above, provide one to be easy to assembling, good operating stability, after can adjusting equipment as required, produce the different product of thickness and the permanent-magnet ferrite of constant product quality prepares mould simultaneously.
For achieving the above object, present invention employs following technical proposal: this permanent-magnet ferrite is prepared mould and comprised tringle and die shoe, described upper tringle is connected with upper tringle can being driven to be elevated thus realize the pressure apparatus that product suppresses, die shoe is provided with nib, being equipped with in nib can the core bar of vertical lifting, and form annular space between nib inwall and core bar outer wall, on described core bar, slip cap is connected to cylindrical body, the upper end of described cylindrical body be positioned at annular space and by annular space lower end closed thus formed annular die cavity, core bar is socketed with and is positioned at below cylindrical body and cylindrical body is installed with regulating wheel thereon, described regulating wheel is threaded with core bar and can adjusts the degree of depth of annular die cavity when regulating wheel to rise relative to core bar or declines, described core bar lower end with core bar can be driven to be elevated thus demoulding drive unit product compressing in annular die cavity being ejected annular die cavity is connected.
Prepare in mould at above-mentioned permanent-magnet ferrite, described regulating wheel to rotate and the lockable mechanism that regulating wheel can be made to move axially is connected with preventing regulating wheel circumference.
Prepare in mould at above-mentioned permanent-magnet ferrite, described lockable mechanism comprises frame and described die shoe is erected in frame, frame is provided with at least one locking tooth and described locking tooth one end and frame are hinged, described regulating wheel is provided with and is somely uniformly distributed and axially extended teeth groove at circumferencial direction, and the described end of locking tooth and the shape of teeth groove adapt and can be stuck in teeth groove and the end of locking tooth after locking tooth rotates and vertically can slide along teeth groove.
Prepare in mould at above-mentioned permanent-magnet ferrite, be provided with between described locking tooth and frame and can prevent the end of locking tooth from departing from the elastic holding structure of teeth groove when the end of locking tooth is positioned at teeth groove.
Prepare in mould at above-mentioned permanent-magnet ferrite, described elastic holding structure is arranged on locking tooth and frame to be hinged the torsion spring located.
Prepare in mould at above-mentioned permanent-magnet ferrite, described regulating wheel extend to outside frame at least partially.
Prepare in mould at above-mentioned permanent-magnet ferrite, between described cylindrical body lower end and regulating wheel, be provided with plane bearing.
Prepare in mould at above-mentioned permanent-magnet ferrite, described cylindrical body lower end is provided with annular retaining ring, is provided with spring in cylindrical body outer race, and one end of described spring acts on annular retaining ring, and the other end acts on die shoe.
Prepare in mould at above-mentioned permanent-magnet ferrite, described nib is arranged on hardness and is greater than on the die sleeve of die shoe, and described die sleeve and die shoe removably connect.
Compared with prior art, the advantage that this permanent-magnet ferrite prepares mould is: after 1, can adjusting equipment as required, produces the different product of thickness and constant product quality.2. be easy to assembling, good operating stability.
Accompanying drawing explanation
Fig. 1 is structural representation provided by the invention.
Fig. 2 is part-structure schematic diagram provided by the invention.
Fig. 3 is part-structure schematic diagram provided by the invention.
In figure, upper tringle 1, die shoe 2, pressure apparatus 3, nib 4, core bar 5, annular space 6, cylindrical body 7, annular die cavity 8, regulating wheel 9, demoulding drive unit 10, lockable mechanism 11, frame 12, locking tooth 13, teeth groove 14, annular retaining ring 15, spring 16, die sleeve 17.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
As Figure 1-3, comprise tringle 1 and die shoe 2, described upper tringle 1 is connected with upper tringle 1 can being driven to be elevated thus realize the pressure apparatus 3 that product suppresses, die shoe 2 is provided with nib 4, being equipped with in nib 4 can the core bar 5 of vertical lifting, and form annular space 6 between nib 4 inwall and core bar 5 outer wall, on described core bar 5, slip cap is connected to cylindrical body 7, the upper end of described cylindrical body 7 be positioned at annular space 6 and by annular space 6 lower end closed thus formed annular die cavity 8, core bar 5 is socketed with and is positioned at below cylindrical body 7 and cylindrical body 7 is installed with regulating wheel 9 thereon, described regulating wheel 9 is threaded with core bar 5 and can adjusts the degree of depth of annular die cavity 8 when regulating wheel 9 to rise relative to core bar 5 or declines, described core bar 5 lower end with core bar 5 can be driven to be elevated thus the demoulding drive unit 10 product compressing in annular die cavity 8 being ejected annular die cavity 8 is connected.
Concrete, described regulating wheel 9 with can prevent regulating wheel 9 circumference from rotating and the lockable mechanism 11 that regulating wheel 9 can be made to move axially is connected.Described lockable mechanism 11 comprises frame 12 and described die shoe 2 is erected in frame 12, frame 12 is provided with at least one locking tooth 13 and described locking tooth 13 one end and frame 12 are hinged, described regulating wheel 9 is provided with and is somely uniformly distributed and axially extended teeth groove 14 at circumferencial direction, and the end of described locking tooth 13 and the shape of teeth groove 14 adapt and can be stuck in the teeth groove 14 and end of locking tooth 13 after locking tooth 13 rotates and vertically can slide along teeth groove 14.
Further, be provided with between described locking tooth 13 and frame 12 and can prevent the end of locking tooth 13 from departing from the elastic holding structure of teeth groove 14 when the end of locking tooth 13 is positioned at teeth groove 14.Described elastic holding structure is arranged on locking tooth 13 and frame 12 to be hinged the torsion spring located.Extending at least partially outside frame 12 of described regulating wheel 9.Plane bearing is provided with between described cylindrical body 7 lower end and regulating wheel 9.Described cylindrical body 7 lower end is provided with annular retaining ring 15, is provided with spring 16 in cylindrical body 7 outer race, and one end of described spring 16 acts on annular retaining ring 15, and the other end acts on die shoe 2.Described nib 4 is arranged on hardness and is greater than on the die sleeve 17 of die shoe 2, and described die sleeve 17 removably connects with die shoe 2.
In the present embodiment, the different product of thickness can be produced by the height adjusting cylindrical body 7, whole process is convenient, efficient, and substantially reduce the production cycle of product and save a large amount of production costs, lockable mechanism 11 further improves the stability of equipment, when needing regulating wheel 9 not rotate in producing, put down lockable mechanism 11, locking tooth 13 is engaged with the teeth groove 14 of regulating wheel 9, now, regulating wheel 9 can continue to move vertically, improves stability.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ the terms such as tringle 1, die shoe 2, pressure apparatus 3, nib 4, core bar 5, annular space 6, cylindrical body 7, annular die cavity 8, regulating wheel 9, demoulding drive unit 10, lockable mechanism 11, frame 12, locking tooth 13, teeth groove 14, annular retaining ring 15, spring 16, die sleeve 17 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (9)
1. a permanent-magnet ferrite prepares mould, comprise tringle (1) and die shoe (2), described upper tringle (1) is connected with upper tringle (1) can being driven to be elevated thus realize the pressure apparatus (3) that product suppresses, die shoe (2) is provided with nib (4), being equipped with in nib (4) can the core bar (5) of vertical lifting, and form annular space (6) between nib (4) inwall and core bar (5) outer wall, it is characterized in that, the upper slip cap of described core bar (5) is connected to cylindrical body (7), the upper end of described cylindrical body (7) be positioned at annular space (6) and by annular space (6) lower end closed thus formed annular die cavity (8), core bar (5) is socketed with and is positioned at cylindrical body (7) below and cylindrical body (7) is installed with regulating wheel (9) thereon, described regulating wheel (9) is threaded with core bar (5) and can adjusts the degree of depth of annular die cavity (8) when regulating wheel (9) rises relative to core bar (5) or declines, described core bar (5) lower end with core bar (5) can be driven to be elevated thus the demoulding drive unit (10) product compressing in annular die cavity (8) being ejected annular die cavity (8) is connected.
2. permanent-magnet ferrite according to claim 1 prepares mould, it is characterized in that, described regulating wheel (9) to rotate and the lockable mechanism (11) that regulating wheel (9) can be made to move axially is connected with preventing regulating wheel (9) circumference.
3. permanent-magnet ferrite according to claim 2 prepares mould, it is characterized in that, described lockable mechanism (11) comprises frame (12) and described die shoe (2) is erected in frame (12), frame (12) is provided with at least one locking tooth (13) and described locking tooth (13) one end and frame (12) are hinged, described regulating wheel (9) is provided with and is somely uniformly distributed and axially extended teeth groove (14) at circumferencial direction, the end of described locking tooth (13) and the shape of teeth groove (14) adapt and vertically can slide along teeth groove (14) when being stuck in teeth groove (14) and the end of locking tooth (13) after locking tooth (13) rotates.
4. permanent-magnet ferrite according to claim 3 prepares mould, it is characterized in that, be provided with between described locking tooth (13) and frame (12) and can prevent the end of locking tooth (13) from departing from the elastic holding structure of teeth groove (14) when the end of locking tooth (13) is positioned at teeth groove (14).
5. permanent-magnet ferrite according to claim 4 prepares mould, it is characterized in that, described elastic holding structure to be hinged the torsion spring located for being arranged on locking tooth (13) and frame (12).
6. permanent-magnet ferrite according to claim 3 prepares mould, it is characterized in that, described regulating wheel (9) extend to frame (12) at least partially outward.
7. the permanent-magnet ferrite according to claim 1 or 2 or 3 or 4 or 5 or 6 prepares mould, it is characterized in that, is provided with plane bearing between described cylindrical body (7) lower end and regulating wheel (9).
8. the permanent-magnet ferrite according to claim 1 or 2 or 3 or 4 or 5 or 6 prepares mould, it is characterized in that, described cylindrical body (7) lower end is provided with annular retaining ring (15), spring (16) is provided with in cylindrical body (7) outer race, one end of described spring (16) acts on annular retaining ring (15), and the other end acts on die shoe (2).
9. the permanent-magnet ferrite according to claim 1 or 2 or 3 or 4 or 5 or 6 prepares mould, it is characterized in that, described nib (4) is arranged on hardness and is greater than on the die sleeve (17) of die shoe (2), and described die sleeve (17) and die shoe (2) removably connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020276.7A CN105562684B (en) | 2015-12-30 | 2015-12-30 | Permanent-magnet ferrite prepares mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020276.7A CN105562684B (en) | 2015-12-30 | 2015-12-30 | Permanent-magnet ferrite prepares mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105562684A true CN105562684A (en) | 2016-05-11 |
| CN105562684B CN105562684B (en) | 2017-10-03 |
Family
ID=55873620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511020276.7A Active CN105562684B (en) | 2015-12-30 | 2015-12-30 | Permanent-magnet ferrite prepares mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105562684B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105741656A (en) * | 2016-05-12 | 2016-07-06 | 中国电子科技集团公司第四十一研究所 | Preparation device and method of annular electromagnetic material sample piece |
| CN106975745A (en) * | 2017-05-09 | 2017-07-25 | 长春工业大学 | A kind of self-regulation device for tantalum electric capacity compacting tool set |
| CN110860689A (en) * | 2019-11-28 | 2020-03-06 | 徐州泓吉环锻科技有限公司 | Pressing die for annular powder metallurgy material green body |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6115122B2 (en) * | 1978-06-26 | 1986-04-22 | Mitsubishi Metal Corp | |
| CN2463088Y (en) * | 2001-01-09 | 2001-12-05 | 月村科技股份有限公司 | Powder processing machine |
| US20090257905A1 (en) * | 2007-11-14 | 2009-10-15 | Miba Sinter Austria Gmbh | Compacting Tool |
| CN103691943A (en) * | 2013-12-31 | 2014-04-02 | 昆山优磁电子有限公司 | U-F shaped magnetic-core die |
| CN104475726A (en) * | 2014-12-20 | 2015-04-01 | 扬州市海力精密机械制造有限公司 | Upper inner punching stroke regulating mechanism for mold frame of powder forming machine |
| CN204308195U (en) * | 2014-11-18 | 2015-05-06 | 南通国谊锻压机床有限公司 | A kind of pulverulent product shaping apparatus product height controller |
| CN104966605A (en) * | 2015-07-29 | 2015-10-07 | 安徽万磁电子有限公司 | Forming process of sintered NdFeB tegular magnet and modular mold thereof |
| CN204892944U (en) * | 2015-07-20 | 2015-12-23 | 天津邦特磁性材料有限公司 | Compacting tool set of bonding neodymium iron boron magnetism body |
| CN205237071U (en) * | 2015-12-30 | 2016-05-18 | 浙江省东阳市剑华磁业有限公司 | Permanent magnetic ferrite prepares mould |
-
2015
- 2015-12-30 CN CN201511020276.7A patent/CN105562684B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6115122B2 (en) * | 1978-06-26 | 1986-04-22 | Mitsubishi Metal Corp | |
| CN2463088Y (en) * | 2001-01-09 | 2001-12-05 | 月村科技股份有限公司 | Powder processing machine |
| US20090257905A1 (en) * | 2007-11-14 | 2009-10-15 | Miba Sinter Austria Gmbh | Compacting Tool |
| CN103691943A (en) * | 2013-12-31 | 2014-04-02 | 昆山优磁电子有限公司 | U-F shaped magnetic-core die |
| CN204308195U (en) * | 2014-11-18 | 2015-05-06 | 南通国谊锻压机床有限公司 | A kind of pulverulent product shaping apparatus product height controller |
| CN104475726A (en) * | 2014-12-20 | 2015-04-01 | 扬州市海力精密机械制造有限公司 | Upper inner punching stroke regulating mechanism for mold frame of powder forming machine |
| CN204892944U (en) * | 2015-07-20 | 2015-12-23 | 天津邦特磁性材料有限公司 | Compacting tool set of bonding neodymium iron boron magnetism body |
| CN104966605A (en) * | 2015-07-29 | 2015-10-07 | 安徽万磁电子有限公司 | Forming process of sintered NdFeB tegular magnet and modular mold thereof |
| CN205237071U (en) * | 2015-12-30 | 2016-05-18 | 浙江省东阳市剑华磁业有限公司 | Permanent magnetic ferrite prepares mould |
Non-Patent Citations (1)
| Title |
|---|
| 杨宏亮: "粉末冶金模具设计原理及应用", 《模具制造》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105741656A (en) * | 2016-05-12 | 2016-07-06 | 中国电子科技集团公司第四十一研究所 | Preparation device and method of annular electromagnetic material sample piece |
| CN106975745A (en) * | 2017-05-09 | 2017-07-25 | 长春工业大学 | A kind of self-regulation device for tantalum electric capacity compacting tool set |
| CN110860689A (en) * | 2019-11-28 | 2020-03-06 | 徐州泓吉环锻科技有限公司 | Pressing die for annular powder metallurgy material green body |
| CN110860689B (en) * | 2019-11-28 | 2022-04-29 | 徐州迈斯特机械科技有限公司 | Pressing die for annular powder metallurgy material green body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105562684B (en) | 2017-10-03 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Preparation mold for permanent magnet oxygen Granted publication date: 20171003 Pledgee: Postal Savings Bank of China Limited Dongyang City sub branch Pledgor: DONGYANG JIANHUA MAGNETISM Co.,Ltd. Registration number: Y2024980002763 |
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