CN200939655Y - Down-ejecting magnetic field forming die - Google Patents
Down-ejecting magnetic field forming die Download PDFInfo
- Publication number
- CN200939655Y CN200939655Y CN 200620107164 CN200620107164U CN200939655Y CN 200939655 Y CN200939655 Y CN 200939655Y CN 200620107164 CN200620107164 CN 200620107164 CN 200620107164 U CN200620107164 U CN 200620107164U CN 200939655 Y CN200939655 Y CN 200939655Y
- Authority
- CN
- China
- Prior art keywords
- die
- counterdie
- magnetic field
- under magnetic
- pressing under
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a forming mould with down top structure used for wet magnetic forming of permanent magnetic ferrite, which comprises an upper die (3), a concave die (5) and a lower die (6) adapted to the upper die, a magnetic coil (4) which is arranged at the lateral of the upper die (3), and the utility model is characterized in that the lower side of the concave die (5) is fixed and connected with a support plate (10) which is connected with a prop (12), the lower die (6) is arranged at the centre of the adapted concave die (5) and is connected with a down top pillar (8) through a lower die fixed plate (7), a guide bush (11) is arranged between the presented down top pillar (8) and the support plate (10). The mould improves the stability of mould, at the same time, the forming qualified rate of complex shaped products pressing is improved, structures are simplified and the production cost is reduced.
Description
Technical field
The utility model relates to the employed pressing under magnetic field mould of a kind of magnetic material industry.Especially relate to a kind of mould that is used for the lower top type structure of permanent-magnet ferrite product wet method pressing under magnetic field.
Background technology
Produce the magnet product that high-performance permanent magnetic ferrite material is made, all adopt the blank of wet method pressing under magnetic field technology compacted products, could obtain good magnetic property like this.The wet method pressing under magnetic field mould of permanent-magnet ferrite product mainly adopts floating structure at present, is that " a kind of pulling-down type motor magnetic tile mould " (patent No. 93225109.9) and patent name are " mould of magnetic ferrites product " (patent No. CN200420023852.4) as the disclosed patent name of Chinese patent.Because die is that floating type state (being supported by guide pillar) can be up and down, and all be that counterdie is fixed, the course of work that patrix and die press down simultaneously, poor stability, the mould that exists mould pull easily, higher to the required precision of mould bases; In addition, qualification rate is lower when suppressing complex-shaped product (as tile-shaped magnet).Therefore, floating type molding effect is poor, does not reach desirable requirement.
As mentioned above, there is following deficiency in prior art: floating type die working method make the poor stability of mould, mould pull easily, higher to the required precision of mould bases; In addition, qualification rate is lower when suppressing complex-shaped product (as tile-shaped magnet), and floating type molding effect is poor, does not reach desirable requirement
Summary of the invention
The utility model solved prior art exist the poor stability of mould, mould pull easily, to the required precision problem of higher of mould bases.
In addition, use this novel lower problem of qualification rate when suppressing complex-shaped product (as tile-shaped magnet) that has also solved the prior art existence.
The utility model provides a kind of pressing under magnetic field mould of lower top type structure of the wet method pressing under magnetic field that is used for the permanent-magnet ferrite product, it effectively raises the stability of mould, also improved simultaneously the moulding qualification rate of complex-shaped product, designs simplification has reduced production cost.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: a kind of lower top type pressing under magnetic field mould, the field coil that comprise patrix, the die suitable with it and counterdie and the patrix outside is provided with, described patrix and upper mould fixed plate and the upper die plate of being located between the two link into an integrated entity, the counterdie fixed head of described counterdie and fixing counterdie and the following fore-set that supports the two are connected, the described counterdie outside is provided with suitable die, it is characterized in that described die downside is fixedly connected by the gripper shoe that the die backing plate is connected with pillar.Field coil in the utility model can be arranged on the outside of die, when field coil is fixed on (being overhead) on the patrix, moves with the upper cylinder moved cross beam of hydraulic press; Can be installed in also that (being underneath type) maintains static on the gripper shoe; Twin coil work can also be set up and down simultaneously.Field coil is by magnetizing power supply power supply, in forming process the product blank carried out orientation and magnetizes and demagnetize.When mold work, patrix rises to the press upper limit, counterdie returns to the press lower limit, reinforced and add filter paper and filter cloth in concave die cavity at die joint (being the junction of patrix and die), the descending matched moulds of patrix, simultaneously magnetize and open in magnetic field, and that die is fixed on the gripper shoe is motionless, and counterdie jack-up is suppressed, when reaching setting pressure, press power enters the pressurize time-delay, magnetize and stop this moment, and demagnetization is opened and delayed time and stops, upper die and lower die (on, following oil cylinder) release simultaneously, the patrix backhaul, counterdie continues jack-up, and blank demoulding this moment is got base and finished a compacting work period; In the process of this reinforced moulding, on the die joint of patrix and die, add filter course, help draining and prevent to expect that powder escapes, and die does not float with the shaping work process all the time, can avoid original problem like this because die floats the problem includes: the mould poor stability, pull easily, to the problems such as required precision height of mould bases, it has improved the stability of mould, has improved the moulding qualification rate when suppressing complex-shaped product simultaneously, simplify mould structure, reduced production cost.
As choosing is arranged, described upper mould fixed plate and upper die plate are provided with the draining duct, it connects to form by through hole on the upper die plate and the transverse drainage through hole on the upper mould fixed plate, described transverse drainage through hole also is linked together with drain connection, described patrix is provided with the plurality of rows water hole, and described osculum communicates with described drainpipe.Moisture in the forming process in the slip sees through filter paper and the filter cloth on the die joint earlier, arrives intercommunicating pore by osculum then, again by intercommunicating pore discharge water moisture content.
As preferably, described die is provided with die cavity, and described die cavity and described counterdie are suitable, and described counterdie is positioned at the centre of die backing plate, and described fore-set down places in the middle of the guide pin bushing and be suitable with it.This down under fore-set and the hydraulic press to be installed the piston rod of oil cylinder is connected, and the guide pin bushing that is provided with between described fore-set down and the gripper shoe can play the effect of protecting dip mold, and outward appearance is succinctly attractive in appearance.
As choosing is arranged, the aperture, osculum lower end that described patrix is provided with contacts with the entity place and the die cavity place of described die respectively, is provided with filter course between described patrix and the described die touching position.This filter course can be the combination of filter paper and filter cloth; And aperture, osculum lower end contacts with the entity place of described die and die cavity place respectively and can make things convenient for that the moisture content in the slip sees through filtering layer in the forming process, enters into drainage channel by osculum again.
As preferably, the gap location between described die and the described counterdie is provided with the counterdie sealing ring.It can prevent that counterdie from escaping powder, and described counterdie sealing ring material is elastomers such as rubber or ox-hide.
As preferably, the die cavity bottom that is provided with in the described die is provided with the material feeding groove, and described material feeding groove is communicated with the cavity in the middle of described die cavity and the described die backing plate; Described gripper shoe is provided with the material feeding duct, and described material feeding duct is communicated with by cavity and material feeding groove in the middle of the described die backing plate with described die cavity.Like this when mould when adopting automatic injection forming, be provided with the material feeding groove in the die cavity on the described die, described gripper shoe is provided with the material feeding duct, helps slip and is injected in the concave die cavity.
As preferably, mould is respectively equipped with die backing plate sealing ring between described die backing plate and described die, the described gripper shoe contact-making surface when adopting automatic injection forming; Be provided with down the fore-set sealing ring between described fore-set down and the described guide pin bushing.These sealing rings can play the effect that prevents to escape powder.
The utility model is skillfully constructed, simplicity of design, rational in infrastructure, in forming process, die is maintained static, effectively raise the stability of mould, thereby make increase the service life of mould, also improved the moulding qualification rate of suppressing complex-shaped product, reduced production cost, remarkable in economical benefits.
Description of drawings
Fig. 1 is the structural representation of the utility model at a kind of lower top type pressing under magnetic field mould of hand charge state compacted under.
Fig. 2 is the structural representation of the utility model at a kind of lower top type pressing under magnetic field mould of automatic slip casting state compacted under.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described further.
Embodiment 1.See Fig. 1, the lower top type pressing under magnetic field mould of this routine a kind of hand charge, comprise the field coil 4 that patrix 3, the die 5 suitable with it and counterdie 6 and patrix 3 outsides are provided with, wherein, field coil 4 can be fixed on (overhead) on the patrix, can be installed in also that (underneath type) maintains static on the gripper shoe 10, twin coil work can also be set up and down simultaneously; Described patrix 3, upper mould fixed plate 1 and the upper die plate of being located between the two 2 are formed the top die parts, and upper mould fixed plate 1 is connected with hydraulic press upper cylinder moved cross beam to be installed; Described counterdie 6, fixedly the counterdie fixed head 7 of counterdie 6 and the following fore-set 8 that supports the two are formed the dip mold parts, following fore-set 8 places in the middle of the gripper shoe 10, be provided with guide pin bushing 11 between following fore-set 8 and the gripper shoe 10, play the effect of stablizing counterdie 6, counterdie 6 by bolt and counterdie fixed head 7 and down fore-set 8 be connected, following fore-set 8 is connected with the following oil cylinder piston bar of hydraulic press to be installed; Described die 5, mould part during fixedly the gripper shoe 10 of die 5 and die backing plate 9 and pillar 12 are formed are fixed on die 5 and die backing plate 9 on the gripper shoe 10 by bolt, again by pillar with middle mould partial fixing on the workbench of hydraulic press to be installed; Wherein, the contact-making surface of patrix 3 and die 5 is a die joint, adds filter course 15 in pressing process, can be the combination of filter paper and filter cloth, helps draining and prevents to expect that powder escapes; Be provided with counterdie sealing ring 19 between described die 5 and the described counterdie 6, prevent that counterdie 6 from escaping powder; Described die 5 is provided with die cavity 14, and described die cavity 14 and counterdie 6 are suitable, and counterdie 6 is positioned at the centre of die backing plate 9, and the piston rod of oil cylinder is connected under following fore-set 8 and the hydraulic press to be installed.Described top die is provided with drain connection 13, it couples together by the transverse drainage through hole 18 on intercommunicating pore on the upper die plate 2 17 and the upper mould fixed plate 1, described patrix 3 is provided with plurality of rows water hole 16, and described osculum 16 communicates with described drainage hole 17.Aperture, described osculum 16 lower end contacts with the die cavity place with the entity place of die 5 respectively, so that the moisture content in the slip is discharged in the forming process.
During mold work, patrix 3 rises to the press upper limit, counterdie 6 returns to the press lower limit, reinforced and on die joint, add filter course 15 in the die cavity of die 5, patrix 3 descending matched moulds, magnetize and open in magnetic field simultaneously, and (die 5 and die backing plate 9 are by being bolted on the gripper shoe 10 because of die maintains static, be fixed on the hydraulic press workbench by pillar 12 again), counterdie 6 jack-up are suppressed, and enter the pressurize time-delay when press power reaches setting pressure, and magnetizing simultaneously stops, demagnetization is opened and is delayed time and stops, patrix 3 and counterdie 6 (on, following oil cylinder) release simultaneously, patrix 3 backhauls, counterdie 6 continues jack-up, the blank demoulding is got base and is finished a compacting work period.
After using the utility model lower top type pressing under magnetic field mould, speed up at the condition compacted under of same materials and prescription, the moulded blank defective reduces, and the blank qualification rate improves, and the stability of production and uniformity in product performance improve.
Embodiment 2.See Fig. 2, the lower top type pressing under magnetic field mould of a kind of automatic slip casting of this example, comprise the field coil 4 that patrix 3, the die 5 suitable with it and counterdie 6 and patrix 3 outsides are provided with, wherein, field coil 4 can be fixed on (overhead) on the patrix, can be installed in also that (underneath type) maintains static on the gripper shoe 10, twin coil work can also be set up and down simultaneously; Described patrix 3, upper mould fixed plate 1 and the upper die plate of being located between the two 2 are formed the top die parts, and upper mould fixed plate 1 is connected with hydraulic press upper cylinder moved cross beam to be installed; Described counterdie 6, fixedly the counterdie fixed head 7 of counterdie 6 and the following fore-set 8 that supports the two are formed the dip mold parts, following fore-set 8 places in the middle of the gripper shoe 10, be provided with guide pin bushing 11 between following fore-set 8 and the gripper shoe 10, play the effect of stablizing counterdie 6, be provided with down fore-set sealing ring 22 between guide pin bushing 11 and the following fore-set 8, prevent down that fore-set 8 escapes powder, counterdie 6 by bolt and counterdie fixed head 7 and down fore-set 8 be connected, following fore-set 8 is connected with the following oil cylinder piston bar of hydraulic press to be installed; Described die 5, the fixedly gripper shoe 10 of die 5 and die backing plate 9 and the middle mould part that pillar 12 is formed, by bolt die 5 and die backing plate 9 are fixed on the gripper shoe 10, be fixed on the workbench of hydraulic press to be installed by pillar again, be provided with material feeding groove 20 in the die cavity 14 on the described die 5, material feeding groove 20 communicates with the cavity of die backing plate 9 centres; Wherein, the contact-making surface of patrix 3 and die 5 is a die joint, adds filter paper and filter cloth in pressing process, helps draining and prevents to expect that powder escapes; Be respectively equipped with die backing plate sealing ring 21 between described die backing plate 9 and die 5 and the gripper shoe 10, prevent that die backing plate 9 from escaping powder; Described gripper shoe 10 is provided with material feeding duct 23, and die cavity 14 is connected by cavity in the middle of material feeding groove 20 and the die backing plate 9 and the material feeding duct 23 on the gripper shoe 10, helps slip and injects die cavity 14; Described die 5 is provided with die cavity 14, and described die cavity 14 and described counterdie 6 are suitable, and counterdie 6 is positioned at the centre of die backing plate 9, and the piston rod of oil cylinder is connected under described down fore-set 8 and the hydraulic press to be installed.Described top die is provided with drain connection 13, it couples together by the transverse drainage through hole 18 on intercommunicating pore on the upper die plate 2 17 and the upper mould fixed plate 1, described patrix 3 is provided with plurality of rows water hole 16, osculum 16 communicates with drainage hole 17, aperture, described osculum 16 lower end contacts with the die cavity place with the entity place of described die 5 respectively, so that the moisture content in the slip is discharged in the forming process.
During mold work, die joint to die 5 adds filter paper and filter cloth, patrix 3 is by the quick descending matched moulds of press upper limit (counterdie 6 is in the press lower limit), this moment magnetizes and opens in magnetic field, the material feeding time-delay also stops, (die 5 and die backing plate 9 are by being bolted on the gripper shoe 10 because of die maintains static, connect by pillar 12 again and be fixed on the hydraulic press workbench), counterdie 6 jack-up are suppressed, when reaching setting pressure, press power enters pressurize time-delay (suction of material feeding this moment cylinder is that next material feeding is prepared), magnetize simultaneously and stop, demagnetization is opened and is delayed time and stops, patrix 3 and counterdie 6 (on, following oil cylinder) release simultaneously, patrix 3 backhauls, counterdie 6 continues jack-up, the blank demoulding is got base and is finished a compacting work period.
After using the utility model lower top type pressing under magnetic field mould, speed up at the condition compacted under of same materials and prescription, the moulded blank defective reduces, and the blank qualification rate improves, and the stability of production and uniformity in product performance improve.
Claims (10)
1, a kind of lower top type pressing under magnetic field mould, comprise patrix (3), die suitable (5) and counterdie (6) with it, and the field coil (4) that is provided with outside the patrix (3), described patrix (3) and upper mould fixed plate (1) and the upper die plate of being located between the two (2) link into an integrated entity, the counterdie fixed head (7) of described counterdie (6) and fixing counterdie (6) and the following fore-set (8) that supports the two are connected, described counterdie (6) outside is provided with suitable die (5), it is characterized in that described die (5) downside is fixedly connected by the gripper shoe (10) that die backing plate (9) is connected with pillar (12).
2, lower top type pressing under magnetic field mould according to claim 1, it is characterized in that described upper mould fixed plate (1) and upper die plate (2) are provided with the draining duct, it connects to form by through hole (17) on the upper die plate (2) and the transverse drainage through hole (18) on the upper mould fixed plate (1), described transverse drainage through hole (18) also is linked together with drain connection (13), described patrix (3) is provided with plurality of rows water hole (16), and described osculum (16) communicates with described drainpipe (13).
3, lower top type pressing under magnetic field mould according to claim 1, it is characterized in that described die (5) is provided with die cavity (14), described die cavity (14) and described counterdie (6) are suitable, described counterdie (6) is positioned at the centre of die backing plate (9), and described fore-set (8) down places guide pin bushing (11) middle and suitable with it.
4, according to claim 1 or 2 or 3 described lower top type pressing under magnetic field moulds, it is characterized in that osculum (16) aperture, lower end that described patrix (3) is provided with contacts with the entity place and the die cavity place of described die (5) respectively, is provided with filter course (15) between described patrix (3) and described die (5) touching position.
5, according to claim 1 or 3 described lower top type pressing under magnetic field moulds, it is characterized in that the gap location between described die (5) and the described counterdie (6) is provided with counterdie sealing ring (19).
6, according to claim 1 or 2 or 3 described lower top type pressing under magnetic field moulds, it is characterized in that die cavity (14) bottom that is provided with in the described die (5) is provided with material feeding groove (20), described material feeding groove (20) is communicated with the cavity in the middle of described die cavity (14) and the described die backing plate (9).
7,, it is characterized in that being respectively equipped with die backing plate sealing ring (21) between described die backing plate (9) and described die (5), described gripper shoe (10) contact-making surface according to claim 1 or 3 described lower top type pressing under magnetic field moulds.
8, according to claim 1 or 2 or 3 described lower top type pressing under magnetic field moulds, it is characterized in that described gripper shoe (10) is provided with material feeding duct (23), described material feeding duct (23) is communicated with by cavity and material feeding groove (20) in the middle of the described die backing plate (9) with described die cavity (14).
9, lower top type pressing under magnetic field mould according to claim 6, it is characterized in that described gripper shoe (10) is provided with material feeding duct (23), described material feeding duct (23) is communicated with by cavity and material feeding groove (20) in the middle of the described die backing plate (9) with described die cavity (14).
10,, it is characterized in that being provided with down fore-set sealing ring (22) between described fore-set (8) down and the described guide pin bushing (11) according to claim 1 or 3 described lower top type pressing under magnetic field moulds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620107164 CN200939655Y (en) | 2006-08-29 | 2006-08-29 | Down-ejecting magnetic field forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620107164 CN200939655Y (en) | 2006-08-29 | 2006-08-29 | Down-ejecting magnetic field forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200939655Y true CN200939655Y (en) | 2007-08-29 |
Family
ID=38745843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620107164 Expired - Fee Related CN200939655Y (en) | 2006-08-29 | 2006-08-29 | Down-ejecting magnetic field forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200939655Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393792B (en) * | 2007-09-19 | 2011-11-09 | 孙立生 | Manufacturing method of permanent magnet body with symmetric magnetic field intensity of right and left arc, and apparatus |
| CN105312561A (en) * | 2015-11-24 | 2016-02-10 | 佛山市康思达液压机械有限公司 | Powder metallurgy mold having quick drainage structure |
-
2006
- 2006-08-29 CN CN 200620107164 patent/CN200939655Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393792B (en) * | 2007-09-19 | 2011-11-09 | 孙立生 | Manufacturing method of permanent magnet body with symmetric magnetic field intensity of right and left arc, and apparatus |
| CN105312561A (en) * | 2015-11-24 | 2016-02-10 | 佛山市康思达液压机械有限公司 | Powder metallurgy mold having quick drainage structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212602446U (en) | Forming device of cement-based stone-like road edge stone | |
| CN211104585U (en) | Forming equipment of imitative stone material type curb of cement base | |
| CN203266881U (en) | Building block mold | |
| CN200939655Y (en) | Down-ejecting magnetic field forming die | |
| CN201064924Y (en) | Die for pressing ceramic tile | |
| CN202021323U (en) | Special core production device of hub reduction gear shell | |
| CN202764134U (en) | Die with automatic cutting sprue in same | |
| CN102294730B (en) | Production method of porous insulation block | |
| CN201736316U (en) | Prefabricated mold of high-speed railway bridge shielding plate component | |
| CN101585246A (en) | Powder forming mould | |
| CN201179546Y (en) | Novel spring pouring head apparatus | |
| CN103357823B (en) | Integrated molding mould of dead head and casting cavity | |
| CN205871012U (en) | Easily box foaming mold utensil of installation puts up | |
| CN205704611U (en) | A kind of leakproof separating type die for heat insulation building block molding | |
| CN205270770U (en) | Molding sand casting is with molding mechanism | |
| CN109201890A (en) | A kind of automobile engine processing mold | |
| CN114506029A (en) | Shaping device for decorative picture frame production | |
| CN206839029U (en) | A kind of resin sand is molded into sand component | |
| CN203236665U (en) | Anti-mold-sticking mold structure based on in-mold decoration technology | |
| CN201913123U (en) | Cold extruding die for double-ended pipe joint | |
| CN203448616U (en) | Integrated molding die of riser and casting cavity | |
| CN210190092U (en) | Grass floor tile does not have groove make-up machine that hangs | |
| CN204382478U (en) | A kind of wall board forming mould | |
| CN220741588U (en) | Pattern block concrete pavement brick plastic mold | |
| CN213082041U (en) | Box mould convenient to drawing of patterns |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Dongyang Fushite Magnetic Industry Co., Ltd. Assignor: Li Lingfeng Contract record no.: 2011330001008 Denomination of utility model: Down-ejecting magnetic field forming die Granted publication date: 20070829 License type: Exclusive License Record date: 20110722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070829 Termination date: 20140829 |
|
| EXPY | Termination of patent right or utility model |