CN101299389B - magnetic field forming device - Google Patents
magnetic field forming device Download PDFInfo
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- CN101299389B CN101299389B CN200810074186XA CN200810074186A CN101299389B CN 101299389 B CN101299389 B CN 101299389B CN 200810074186X A CN200810074186X A CN 200810074186XA CN 200810074186 A CN200810074186 A CN 200810074186A CN 101299389 B CN101299389 B CN 101299389B
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Abstract
To provide a magnetic field molding apparatus which certainly sweeps out a compact without having a negative effect on the quality of the compact, and improves productivity. A sweeping mechanism 30 is disposed opposite to a feeder box 20 across a cavity 11 to reduce the amount of move of the sweeping mechanism 30 and suppress the maximum acceleration of a sweeping action. This reduces impact applied on a compact 100 and shortens a cycle time. In addition, it is preferable that the sweeping mechanism 30 and the feeder box 20 are each operated independently to allow the sweeping mechanism 30 to operate properly without being restrained by the operation of the feeder box 20 to further suppress the maximum acceleration of the sweeping action.
Description
Technical field
The present invention relates to the powder forming device that when forming ferrimagnet etc. with the dry pressing method, uses.
Background technology
As magnet, for ferrite (sintering) magnet that creates main flow,, achieve ferriteization with carrying out pre-burning after the proportioning mixing of raw material with regulation, then the pre-burning body that obtains is ground into submicron-scale, just obtains the material powder of forming by ferrite particle.Then, material powder is put in the die cavity of magnetic field forming device, in magnetic field, carried out compression molding (below be called magnetic forming) and obtain formed body, obtain ferrimagnet by this formed body of sintering then.
Magnetic forming is generally divided, and has to make the dry pressing that forms after the material powder drying and material powder made pulp-like and the wet forming that forms.
In magnetic field forming device, with the formed body depanning from mould that is shaped after finishing, and under the situation that the mode with dry type forms, the depanning of formed body is often carried out (for example, with reference to patent documentation 1) by the feed tank that is used for supply material powder in die cavity.
Promptly as shown in Figure 9, in order in die cavity 1, to supply with material powder, the feed tank 2 that makes lower opening cover die cavity 1 above the position and from reciprocating motion between the position that die cavity 1 is kept out of the way to the side.And cover die cavity 1 above the position, in die cavity 1, supply with material powder in the feed tank 2 from the opening of below.At this moment, feed tank 2 is provided with chuck mechanism 3, is used for formed body 100 depannings that previous magnetic forming circulation is shaped.And in next magnetic forming circulation, in order to carry out the supply of material powder in die cavity 1, when feed tank 2 from position that die cavity 1 is kept out of the way to the side when advance in the position of the top that covers die cavity 1, release from the position of die cavity 1 by chuck mechanism 3 in the formed body 100 that preceding 1 time magnetic forming circulation is shaped, carry out the depanning action.
About the raising of production efficiency, all require all the time for all production scenes.
In magnetic field forming device, be improved in order to make production efficiency, thereby per 1 circulation needed time (below be called the productive temp time) of magnetic forming is shortened, need to accelerate the action (speed and acceleration) of feed tank 2 and chuck mechanism 3.But consequently, formed body 100 is impacted etc., thereby formed body 100 cracks sometimes or breach etc.
In addition, when carrying out the depanning action, formed body 100 and die surface friction, thereby the formed body 100 of also damaging sometimes.
Moreover in the magnetic field forming device that uses magnetic field, if formed body 100 depannings (release) and insufficient, then under the effect in magnetic field, formed body 100 also might be pulled back to die cavity 1 side.Therefore, in order to make formed body 100 depannings effectively, if the released amount that chuck mechanism 3 is produced increases, then the problem of Cun Zaiing is the shift motion increasing of chuck mechanism 3, thereby the productive temp time lengthening, if desire well formed body 100 to be released, then formed body 100 suffered impacts strengthen.
Patent documentation 1: the spy opens flat 5-269718 communique
Summary of the invention
The present invention is based on above-mentioned technical task and finishes, and its purpose is to provide a kind of magnetic field forming device, and it can be carried out to the depanning of body effectively and can not bring harmful effect to quality, simultaneously production efficiency is improved.
Based on such purpose, the present invention relates to a kind of magnetic field forming device, it is characterized in that, comprising: mold, it has the die cavity of packing material powder; Feed tank, the side that it is configured in die cavity, move to the opening that covers the die cavity top the position and in die cavity the packing material powder; Knock-out gear, it is configured in the opposite side of die cavity, and clamping material powder and is obtained formed body by press molding in mold in magnetic field, and this formed body is left the position and depanning from what die cavity was transported to opposite side.
Like this, when the mode of die cavity with clamping makes feed tank dispose opposed to each other mutually with knock-out gear, compare in the situation that the same side of die cavity is wholely set with feed tank and knock-out gear, then the knock-out gear shift motion amount that is used for depanning reduces.So if the identical time is carried out depanning in the cost of both situations, then the former situation can reduce the acceleration that is used to move.In addition, if carry out the depanning action with identical peak acceleration, then the needed time of the former situation depanning shortens, thereby brings the shortening of productive temp time.
The depanning action of passing through the formed body that material powder that feed tank carries out carries out to the filling action of die cavity and by knock-out gear so also can wait by means of flexible cylinder body to be carried out, but is preferably set to punching machine that undertaken by cam drive, so-called.
The depanning action of the formed body that the material powder that is undertaken by feed tank carries out to the filling action of die cavity and by knock-out gear both can make its action integrally synchronously, also can distinguish action independently.In the latter case, the action of knock-out gear can not be subjected to the restriction of feed tank action, therefore, the peak acceleration of action is further reduced.
In addition, when adopting knock-out gear to be carried out to the depanning of body, preferably under the state that formed body is left from the base plate that is arranged at around the mold, carry formed body.For formed body is left from base plate, the mechanism of the formed body lifting that makes clamping both can be set on knock-out gear, also can with knock-out gear clamping formed body the time, make the upper surface of the counterdie that constitutes mold outstanding to the top of base plate.
According to the present invention, be configured in the opposition side of feed tank by the mode that knock-out gear die cavity with clamping, just can reduce the amount of movement of knock-out gear.If amount of movement is reduced,, also can reduce its translational speed and acceleration even then be carried out to the depanning action of body with the same time.If the speed and the acceleration of depanning action are reduced, then can reduce impact that formed body is applied, thereby can be suppressed to the damage etc. of body.In other words, even the maximum of translational speed and acceleration is with former identical, also may in than the short in the past time, carries out the depanning action, thereby can cause the shortening of productive temp time.
In addition, if the action of knock-out gear and feed tank is carried out independently, then the action of knock-out gear is not subjected to the restriction of feed tank action and can reaches optimum state, thereby can further suppress to be used for the acceleration of depanning, so that above-mentioned effect is more obvious.
In addition, when adopting knock-out gear to be carried out to the depanning of body, because formed body is in the state that leaves from base plate, so formed body does not contact with base plate in the depanning action, thereby can prevent the scuffing of formed body etc.
So, in the present invention, may be carried out to the depanning of body effectively and can not bring harmful effect, simultaneously production efficiency is improved quality.
Description of drawings
Fig. 1 is the end view of formation of the magnetic field forming device of expression the present embodiment.
Fig. 2 is the plane graph of magnetic field forming device.
Fig. 3 is expression feed tank and the knock-out gear action flow chart when integrally moving.
Fig. 4 is the flow chart of expression hookup 3.
Fig. 5 is the figure of expression for the cam-operated opportunity (camtiming) of the action that realizes Fig. 3 and Fig. 4.
Fig. 6 is expression feed tank and the knock-out gear action flow chart when moving independently.
Fig. 7 is the flow chart of expression hookup 6.
Fig. 8 is the figure of expression for the cam-operated opportunity of the action that realizes Fig. 6 and Fig. 7.
Fig. 9 be the expression before feed tank and knock-out gear integrally are set the time action flow chart.
Figure 10 is the flow chart of expression hookup 9.
Figure 11 is the figure of expression for the cam-operated opportunity of the action that realizes Fig. 9 and Figure 10.
Symbol description:
10 magnetic field forming devices, 11 die cavitys
12 formers, 13 counterdies
14 patrixes, 15 main shafts
16 base plates, 20 feed tanks
21,31 lobe plates, 22,32 crank connecting link (arm-link) mechanisms
30 knock-out gears, 34,35 jaws
100 formed bodies
Embodiment
Based on embodiment shown in the drawings, just the present invention is described in detail below.
The ferrimagnet that the formed body that is formed by the magnetic field forming device of the present embodiment obtains through burning till is preferably set to: with the ferrite with structure of hexagonal crystal is principal phase, be expressed as A when containing the material that is selected from least a kind of element among Sr, Ba, Ca and the Pb and must contains Sr, to be selected from least a kind of element among rare earth element (containing Y) and the Bi and with La be must element material be expressed as R, and when Co or Co and Zn be expressed as M, contain A, R, Fe and M;
When by formula (1) A
1-xR
x(Fe
12-yM
y)
zO
19During (x, y, z are molal quantity) expression, then satisfy following condition:
0.04≤x≤0.5
0.04≤y≤0.5
0.7≤z≤1.2
1≤(x/y)
Such ferrimagnet can be made by following operation.
In addition, the manufacturing process of the ferrimagnet shown in the present embodiment only is an example eventually, undoubtedly, and can in addition suitable change.
(the generation operation of feedstock composition)
When making ferrimagnet, at first with the proportioning mixed material powder of regulation.As raw material, can use oxide powder or by burning till the compound that becomes oxide, for example powder such as carbonate, hydroxide, nitrate.As the example of material powder more specifically, Fe is arranged
2O
3Powder, SrCO
3Powder, SiO
2Powder, CaCO
3Powder.Weighing Fe
2O
3Powder and SrCO
3Powder makes Fe and Sr reach the ratio (mol ratio) of regulation, and then adds the SiO of ormal weight in this mixture
2Powder and CaCO
3Powder just obtains feedstock composition.
(pre-burning operation)
Adopt pulverizing mill etc. to carry out the wet mixed of stipulated time and carry out granulation the feedstock composition that obtains, make its dry back carry out the pre-burning of stipulated time, just obtain the pre-burning body thus with set point of temperature.
(pulverizing process)
Then, the pre-burning body that obtains is pulverized in the coarse crushing operation, just obtained the preburning powder of forming by ferrite particle.In the coarse crushing operation, carry out coarse crushing with roll mill (roll mill) etc.
Then in this preburning powder, add suitable additive, in the broken operation of micro mist, be ground into submicron-scale, obtain the main micro mist comminuted powder that constitutes by the ferrite of plumbite type.The broken operation of coarse crushing operation and micro mist can either be carried out in the mode of wet type, also can carry out in the mode of dry type.But the pre-burning body generally is made of particle, thereby preferably carries out coarse crushing in the mode of dry type, and it is broken then to carry out micro mist in the mode of wet type.At this moment, with the particle diameter below the pre-burning body coarse crushing one-tenth regulation, allocate the pulverizing slurry that contains meal flour and decentralized medium then in the broken operation of micro mist in the coarse crushing operation, it is broken to use this slurry to carry out until the micro mist of the following particle diameter of regulation.
In the pre-burning body of coarse crushing, for example add Fe
2O
3Powder, La (OH)
3Powder, Co
3O
4Powder, SiO
2Powder, CaCO
3Powder is as being used to improve the additive of magnetic characteristic, and it is broken also can to adopt pulverizing mill etc. to carry out micro mist.In addition, when pulverizing with slurry, allotment can make water etc. as decentralized medium.
Then, the slurry that contains the micro mist comminuted powder is dewatered, adjust the concentration of solid constituent thus, in annealing furnace etc., it is carried out drying afterwards.
Then, the powder that obtains is made its corpusculed by atomizing etc., just obtain fine-particle powder (material powder).
(magnetic forming operation)
The fine-particle powder that use obtains carries out magnetic forming, just obtains the formed body of regulation shape.At this moment, preferably make the formed body that obtains have the interior density of prior setting range.
Magnetic forming adds the magnetic field of prescribed strength in the direction parallel or vertical with compression aspect.
(firing process, manufacturing procedure)
The formed body of making is like this burnt till with rated condition, just obtain sintered body.Then sintered body is processed into the size of regulation, just obtains ferrimagnet as product.
In the present embodiment, formed ferrimagnet for example bends to its section and roughly is " C " font.Such ferrimagnet by be arranged on revolving coil around, just constitute magnet in the motor of packing into etc.
In the above-mentioned magnetic forming operation in above-mentioned operation, use Fig. 1, magnetic field forming device 10 shown in Figure 2.
Magnetic field forming device 10 is thereby that fine-particle powder is filled in the die cavity 11, makes the ferrite particle orientation form the device of the ferrimagnet of regulation shape by impose compression molding in magnetic field.
Die cavity 11 is formed by former 12 section configuration with regulation, that have pass through openings and the counterdie 13 that inserts the pass through openings of former 12 from the below.Above this die cavity 11, be equipped with the patrix 14 that can insert the pass through openings of former 12 from the top.Constitute mold by these formers 12, counterdie 13, patrix 14.
Moreover, for to being filled into the magnetic field that fine-particle powders in the die cavity 11 apply prescribed direction, as the coil of magnetic field applying unit suitably be configured in counterdie 13, patrix 14, former 12 etc. around (omitting among the figure).
Cam that at least one side of counterdie 13 and patrix 14 drives with the rotation that is accompanied by main shaft 15 and linkage etc. are as drive source, can make counterdie 13 and patrix 14 mutually near and the direction left on move, can in die cavity 11, carry out press molding thus to fine-particle powder.
Around former 12, be provided with the base plate 16 that is in same level with the upper surface of former 12.In addition, the feed tank 20 that is used in die cavity 11 supplying with fine-particle powder is set to and can moves along the upper surface of base plate 16.
As the mechanism that the upper surface that is used to make feed tank 20 along base plate 16 moves, for example the mechanism that is had comprises: the lobe plate 21 that drives by main shaft 15 rotations, and have toggle 22 to the follower 22a of this lobe plate 21 profilings.
By means of such mechanism, thereby make toggle 22 actions in the outer peripheral face profiling of lobe plate 21 by making lobe plate 21 rotate follower 22a, feed tank 20 on base plate 16, the position of the upper opening that covers die cavity 11, with the position of keeping out of the way the side in order not disturb the action in the patrix 14 insertion die cavitys 11 from die cavity 11 between carry out reciprocating action.
At this, feed tank 20 is in lower opening, in the position of the upper opening that covers die cavity 11, carries out the supply of particulate powder by particulate powder in the feed tank 20 are dropped in the die cavity 11 to die cavity 11.In addition,, slide along die cavity 11 upper ends by the bottom of feed tank 20 and to wipe fine-particle powder in the die cavity 11 off, thereby carry out the weight feed of fine-particle powder from the action of die cavity 11 when keep out of the way the side by feed tank 20.
In addition, as shown in Figure 2, on base plate 16, set out mold mechanism 30, be used to make through formed body 100 depannings of magnetic forming operation be transported to subsequent handling.
Knock-out gear 30 is set to: can advance and retreat towards approaching, as to leave die cavity 11 direction on base plate 16 along guide rail 33.This knock-out gear 30 has the jaw 34 and 35 that can open and close for clamping formed body 100, can clamping formed body 100 between jaw 34 and 35.
The mechanism that such knock-out gear 30 is had comprises: rotate the lobe plate 31 that drives by main shaft 15, and have the toggle 32 to the follower 32a of this lobe plate 31 profilings.
By means of such mechanism; thereby make toggle 32 actions in the outer peripheral face profiling of lobe plate 31 by making lobe plate 31 rotate follower 32a; knock-out gear 30 on base plate 16, in the position of taking out the formed body 100 on the die cavity 11, be used for will taking-up formed body 100 be transported between the depanning position on the transporter etc. of subsequent handling and carry out reciprocating action.
And, in the position of taking out the formed body 100 on the die cavity 11, jaw 34 and 35 closures and clamping formed body 100 is opened jaw and 34 and 35 in the position that makes formed body 100 depannings, thus formed body 100 is unclamped.In addition, when the formed body 100 on employing jaw 34 and the 35 clamping die cavitys 11, make the upper surface of counterdie 13 move to the top of base plate 16, thus, when the formed body 100 by jaw 34 and 35 clampings moves to the depanning position, can prevent that formed body 100 from being scratched by counterdie 13 and base plate 16.
But above-mentioned feed tank 20 and knock-out gear 30 are respectively with respect to die cavity 11 advance and retreat.At this moment, the advance and retreat action of feed tank 20 and knock-out gear 30 is integrally carried out.In the case, above-mentioned lobe plate 21 and 31 is identical mechanism.
Flow process when Fig. 3 and Fig. 4 represent that feed tank 20 and knock-out gear 30 are integrally advanced and retreat.In addition, Fig. 5 makes feed tank 20 and knock-out gear 30 integrally the advance and retreat lobe plate 21 in when action and 31 curve (figure of representing cam-operated opportunity) as described above.
Shown in Fig. 3 (a), make before the feed tank 20 so that to die cavity 11 in the supply material powder, shown in Fig. 3 (b), feed tank 20 is retreated then.At this moment, knock-out gear 30 synchronously advances to die cavity 11 with the backward movement of feed tank 20, in the standby of the front of die cavity 11.
Then, shown in Fig. 3 (c), while apply magnetic field by the material powder pressurization in counterdie 13 and 14 pairs of die cavitys of patrix 11, to carry out magnetic forming.Be shaped after the end, when patrix 14 is risen, make the upper surface of counterdie 13 rise to the level that is not less than base plate 16.Then shown in Fig. 4 (a), make knock-out gear 30 advance to the position of die cavity 11, with clamping formed body 100.
Then, shown in Fig. 4 (b), knock-out gear 30 is retreated, make formed body 100, and move to and be used to transporter 200 that is transported to subsequent handling etc. from die cavity 11 depannings.
In this depanning action, feed tank 20 is advanced, so that supply with next circulation molding material powder, turn back to the state of Fig. 3 (a) then to die cavity 11, thus the release of 1 circulation.After, carry out same actuation cycle repeatedly, be formed into body 100 successively.
In addition, the action of the advance and retreat of feed tank 20 and knock-out gear 30 also can independently be carried out.In the case, above-mentioned lobe plate 21 and 31 will be independent structures separately.
Flow process when Fig. 6 and Fig. 7 represent that the advance and retreat action of feed tank 20 and knock-out gear 30 is independently carried out.In addition, Fig. 8 is lobe plate 21 and 31 a curve (figure of representing cam-operated opportunity) under this situation.
Shown in Fig. 6 (a), make before the feed tank 20 and then and supply with material powder to die cavity 11, shown in Fig. 6 (b), feed tank 20 is retreated then.
Then, shown in Fig. 6 (c), while apply magnetic field by the material powder pressurization in counterdie 13 and 14 pairs of die cavitys of patrix 11, to carry out magnetic forming.At this moment, knock-out gear 30 carry out magnetic forming during, may be advanced to die cavity 11 near.
Be shaped after the end, when patrix 14 is risen, make the upper surface of counterdie 13 rise to the level that is not less than base plate 16.Then shown in Fig. 7 (a), make knock-out gear 30 advance to the position of die cavity 11, with clamping formed body 100.
After this, shown in Fig. 7 (b), knock-out gear 30 is retreated, make formed body 100 from die cavity 11 depannings.When this depanning action is carried out, feed tank 20 is advanced, so that supply with next circulation molding material powder, turn back to the state of Fig. 6 (a) then to die cavity 11, thus the release of 1 circulation.
At this, for ease of relatively, to shown in Figure 9, feed tank 2 and chuck mechanism 3 incorporate situations with previous mode are also studied.
Flow process when Fig. 9 and Figure 10 represent to make feed tank 2 and chuck mechanism 3 integrated.In addition, Figure 11 is the curve (figure of representing cam-operated opportunity) of the lobe plate under this situation.
Shown in Fig. 9 (a), feed tank 2 and chuck mechanism 3 are advanced, supply with material powder from feed tank 2 to die cavity 1, shown in Fig. 9 (b), feed tank 2 and chuck mechanism 3 are retreated then.At this moment, comparison diagram 3 and situation shown in Figure 6, not only feed tank 2, even chuck mechanism 3 also must be kept out of the way the rear from die cavity 1, so its displacement increases.
Then shown in Fig. 9 (c), while apply magnetic field by the material powder pressurization in counterdie 13 and 14 pairs of die cavitys of patrix 11, to carry out magnetic forming.After be shaped finishing, patrix 14 is risen, shown in Figure 10 (a), make chuck mechanism 3 advance to the position of die cavity 11, with clamping formed body 100.
After this, shown in Figure 10 (b), chuck mechanism 3 is advanced, make formed body 100 from die cavity 1 depanning.Just be in the state of Fig. 9 (a) thus, thus the release of 1 circulation.When this advances, make feed tank 2 rest on the position of die cavity 1, to carry out supply to the material powder of die cavity 1.And at this moment, chuck mechanism 3 must move by side to opposite side and carry out the depanning action from one of die cavity 1, therefore, the situation of comparison diagram 4 and Fig. 7, its displacement increases.
Like this; with make feed tank 2 and chuck mechanism 3 incorporate situations and compare with previous mode; just a side of die cavity 11 is the moving range of knock-out gear 30; therefore with must compare from the situation that die cavity one side direction opposite side moves chuck mechanism 3 with previous mode, can reduce the amount of movement of chuck mechanism 30.
Can clearly be seen that the curve chart this cam-operated opportunity from Fig. 5, Fig. 8 and Figure 11.
Like this, by chuck mechanism 30 being configured in a side opposite with feed tank 20, just can reduce the amount of movement of knock-out gear 30 in the mode of clamping die cavity 11.If amount of movement is reduced, even then be carried out to the depanning action of body 100 with the identical time, its translational speed and acceleration also can reduce.Compare with Figure 11, in Fig. 5 and Fig. 8, the slope of the curve chart of expression depanning action reduces.If the speed and the acceleration of depanning action reduce, then can reduce impact that formed body 100 is applied, thereby can be suppressed to the damage etc. of body 100.In other words, even the maximum of translational speed and acceleration is with identical in the past, also can in than the shorter in the past time, carries out the depanning action, thereby can shorten the productive temp time.
In addition; as shown in Figure 6 and Figure 7, if the action of knock-out gear 30 and feed tank 20 is independently carried out, then the side at die cavity 11 can make the action of knock-out gear 30 reach optimization; thereby can further suppress to be used for the acceleration of depanning, above-mentioned effect will be more remarkable.
In addition; when adopting knock-out gear 30 clamping formed bodies 100; make the upper surface of counterdie 13 outstanding to the top of base plate 16; the formed body 100 that is held is in the state of the top of emersion base plate 16; therefore in the depanning action; formed body 100 does not contact with base plate 16, thereby can prevent scuffing to formed body 100 etc.
Like this, in the present invention, can be carried out to the depanning of body 100 effectively and can not produce harmful effect, simultaneously production efficiency is improved quality.
In addition, be illustrated with regard to the structure of magnetic field forming device 10 in the above-described embodiment, but only otherwise break away from purport of the present invention, accept or reject and select the cited structure of above-mentioned embodiment, it all is possible perhaps suitably changing to other structure.
Claims (9)
1. a magnetic field forming device is characterized in that, comprising:
Mold, it has the die cavity of packing material powder;
Feed tank, the side that it is configured in described die cavity moves to the position of the opening that covers described die cavity top and fill described material powder in described die cavity;
Knock-out gear, it is configured in the opposite side of described die cavity, and the formed body that described material powder obtains by press molding in magnetic field in described mold in clamping, and this formed body is left the position and depanning from what described die cavity was transported to described opposite side;
Wherein, the depanning action of the described formed body that carries out to the filling action of described die cavity and by described knock-out gear of the described material powder that is undertaken by described feed tank is undertaken by cam drive.
2. magnetic field forming device according to claim 1 is characterized in that: the depanning action of the described formed body that the described material powder that is undertaken by described feed tank carries out to the filling action of described die cavity and by described knock-out gear is carried out respectively independently.
3. magnetic field forming device according to claim 1 and 2; it is characterized in that: when adopting described knock-out gear to make described formed body depanning, under the state that described formed body is left from the base plate that is arranged at around the described mold, carry described formed body.
4. magnetic field forming device according to claim 1 is characterized in that: the depanning action that makes the described formed body that the described material powder that undertaken by described feed tank carries out to the filling action of described die cavity and by described knock-out gear synchronously and action integrally.
5. magnetic field forming device according to claim 4 is characterized in that: described filling action and described depanning action are undertaken by same cam drive.
6. magnetic field forming device according to claim 3 is characterized in that: described feed tank is provided with in the mode that can move along the upper surface of described base plate.
7. magnetic field forming device according to claim 3 is characterized in that: described knock-out gear is set to: can be towards approaching, as to leave described die cavity direction advance and retreat on described base plate.
8. magnetic field forming device according to claim 3 is characterized in that:
Described mold comprises: has the section configuration of regulation and has the former of pass through openings, insert the counterdie of described pass through openings from the below, and the patrix that can insert described pass through openings from the top;
When the described formed body of described knock-out gear clamping, make the upper surface of described counterdie be positioned at the top of described base plate.
9. magnetic field forming device according to claim 1 is characterized in that: described knock-out gear has a plurality of jaws that can open and close that are used for the described formed body of clamping, and described formed body in clamping between described jaw.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP046626/2007 | 2007-02-27 | ||
| JP2007046626A JP2008211007A (en) | 2007-02-27 | 2007-02-27 | Magnetic field molding apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101299389A CN101299389A (en) | 2008-11-05 |
| CN101299389B true CN101299389B (en) | 2011-12-28 |
Family
ID=39787054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810074186XA Active CN101299389B (en) | 2007-02-27 | 2008-02-27 | magnetic field forming device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2008211007A (en) |
| CN (1) | CN101299389B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103418791A (en) * | 2012-04-23 | 2013-12-04 | 会田工程技术有限公司 | Device for high-density molding and method for high-density molding of mixed powder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1249742C (en) * | 2001-10-31 | 2006-04-05 | 株式会社新王磁材 | Method of manufacturing permanent magnet and pressing apparatus |
| CN1266303C (en) * | 2000-04-21 | 2006-07-26 | 株式会社新王磁材 | Equipment for pressing powder material, and method for producing rare-earth magnetic using said equipment |
-
2007
- 2007-02-27 JP JP2007046626A patent/JP2008211007A/en not_active Withdrawn
-
2008
- 2008-02-27 CN CN200810074186XA patent/CN101299389B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1266303C (en) * | 2000-04-21 | 2006-07-26 | 株式会社新王磁材 | Equipment for pressing powder material, and method for producing rare-earth magnetic using said equipment |
| CN1249742C (en) * | 2001-10-31 | 2006-04-05 | 株式会社新王磁材 | Method of manufacturing permanent magnet and pressing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101299389A (en) | 2008-11-05 |
| JP2008211007A (en) | 2008-09-11 |
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