CN105225817A - The secondary powder feeding manufacture method of inductor and structure thereof - Google Patents
The secondary powder feeding manufacture method of inductor and structure thereof Download PDFInfo
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- CN105225817A CN105225817A CN201410234571.1A CN201410234571A CN105225817A CN 105225817 A CN105225817 A CN 105225817A CN 201410234571 A CN201410234571 A CN 201410234571A CN 105225817 A CN105225817 A CN 105225817A
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Abstract
A kind of secondary powder feeding manufacture method of inductor and structure thereof, when making, matched moulds on mould in board driving de-material module displacement to lower die block, board drive powder feeding base plate to slide in this de-material module again and carry out first time fill out powder in middle mould after, powder feeding base plate and de-ly expect that namely module is back to original position.Then, be placed in by coil tablet on middle mould, board drives matched moulds on de-material module displacement to middle mould again, and now board drives powder feeding base plate slide in this de-material module and carry out being back to original position again after second time fills out powder again.Finally, the metal dust extruding inserting middle mould is formed the core structure being coated on coil outer after driving upper punch module to be moved to de-material module matched moulds downwards by board.
Description
Technical field
The present invention relates to a kind of inductor maker, particularly relate to a kind of with secondary powder feeding step to make the board of inductor.
Background technology
Traditional knockdown inductor, mainly there is the I-shaped iron core of a manganese-zinc ferrite, by coil winding on this I-shaped iron core, the more I-shaped iron core group being wound with coil is loaded on a section is in the lid of U-shaped, to form knockdown inductor.Because the permeability of this knockdown inductor is high, saturated magnetic force is low, easily saturated in use, cannot resistance to big current, is not therefore used.
Current inductor is all that requirement can resistance to big current, and therefore most inductor is as choke or anti-current device.The making of this inductor utilizes powder compaction to form, leading winding air core coil, air core coil is positioned in mould, iron powder is poured into be pressed into an inductor with this coil in this mould after, the practice of this kind of powder compaction makes permeability low, saturated magnetic force is high, and inductor is not easily saturated in use, can resistance to larger electric current.
The above-mentioned inductor of powder compaction that utilizes is when making, first the coil tablet with multiple coil to be positioned in this lower die block on mould, the die cap of this board driving de-material module is moved in this and mould carries out matched moulds, the through hole frame of this die cap is made to live the die cavity of mould in this, now board drives powder feeding base plate to slide on this die cap, when powder feeding base plate slides, metal dust is filled in the die cavity of mould in this, after metal dust fills in die cavity, in this, mould is subject to the driving of board and produces vibrations or rock dynamic, metal dust can be filled in the die cavity of mould in this smoothly, when this board drives upper punch module to be moved to matched moulds on this die cap again, the metal dust filled in the die cavity of mould in this is extruded the core structure forming this coil coated by the upper extrusion modling bar of this upper punch module and the lower extrusion modling bar of this lower die block, namely complete inductor to make.
Due to the only powder feeding action once of above-mentioned powder feeding base plate, make the amount of the metal dust filled in each die cavity of middle mould unequal, the weight of the inductor causing each extruding to complete is all unequal, cause and fill out powder precise decreasing, and metal dust not easily manufactures, metal dust in the die cavity filling in middle mould or need be rocked and just can make the smooth landing of metal dust in the die cavity of middle mould through vibrations, therefore causes the difficulty in making.
Summary of the invention
So main purpose of the present invention, is to solve tradition disappearance, avoid disappearance to exist, the present invention utilizes secondary powder feeding to make inductor, makes to fill out powder precision and rises, solve powder and make powder difficulty, the error amount of the inductor weight allowing each extruding complete is all in setting range value.
In order to achieve the above object, the invention provides a kind of secondary powder feeding manufacture method of inductor, mainly there is lower die block, taking off and expect that the board of module, upper punch module and powder feeding base plate carries out inductor making, comprising:
Board to drive in this de-material module displacement to lower die block on mould, carries out matched moulds with mould in this;
Board drives powder feeding base plate to slide in this de-material module, in sliding this powder feeding base plate metal dust is filled in in mould, be namely back to original position after this powder feeding base plate has sent powder, to complete first time powder feeding;
After first time powder feeding, board drives this de-material module to leave middle mould and is back to original position;
Coil tablet is placed on mould;
Board to drive in de-material module displacement to lower die block matched moulds on mould again;
Board drives powder feeding base plate to slide in this de-material module again, and in sliding, metal dust fills in this after mould by this powder feeding base plate, is back to original position again after this powder feeding base plate has sent powder, to complete second time powder feeding;
After secondary powder feeding, the metal dust extruding inserting middle mould is formed the core structure being coated on coil outer after driving upper punch module to be moved to de-material module matched moulds downwards by board.
Wherein, this lower die block has a base and be installed on board and be assembled in middle mould on this base, this base has the lower extrusion modling bar of multiple arrangement in matrix, mould has a plate body in this, this plate body has a boss, this boss has the die cavity that those lower extrusion modling bars are passed.
Wherein, the both sides of this die cavity have the protuberance of different volumes size, and this two protuberance, in order to fix this coil tablet, enables the coil on this coil tablet be positioned on this die cavity.
Wherein, this de-material module has a die cap, this die cap has the through hole of the arrangement in matrix, this through hole to should in mould boss on those passages.
Wherein, this upper punch module is installed on board, it has a pressing plate driven by board, a side of this pressing plate has the upper extrusion modling bar of multiple arrangement in matrix, and on those, extrusion modling pole pair should those through holes on die cap.
Wherein, in board drives die cap of this de-material module to be displaced to mould boss on matched moulds, two protuberances of this boss are lived by the through hole frame of this die cap.
Wherein, through hole institute frame metal dust being filled in this die cap at this powder feeding base plate live in mould die cavity in.
Wherein, in this coil tablet is placed on mould, is located by two protuberances of this boss, make this coil be arranged in this die cavity.
Wherein, in coil tablet is positioned over after mould, matched moulds on the boss that this board drives the die cap of de-material module to be displaced to middle mould again.
Wherein, again drive powder feeding base plate to slide on the through hole of this die cap at board, in the process slided, the through hole institute frame that metal dust is filled in this die cap by this powder feeding base plate live in mould die cavity in.
Wherein, after secondary powder feeding terminates, board drives upper punch module to be moved to downwards and takes off expects that module carries out matched moulds, make the upper extrusion modling bar of this upper punch module be inserted in the through hole of this die cap, with the lower extrusion modling bar in mould in this by insert through hole institute frame live in mould die cavity in metal dust extrude and form the iron core of outer cladding on coil.
In order to achieve the above object, the invention provides a kind of secondary powder feeding structure of inductor, comprising:
Die block once, it has a base and be installed on board and is assembled in middle mould on this base, this base has multiple lower extrusion modling bar through mould in this;
One de-material module, to be installed on board and to be positioned at above this lower die block, it having a die cap, this die cap has the through hole of the arrangement in matrix;
One upper punch module, to be installed on board and to be positioned at above this de-material module, it having a pressing plate driven by board, a side of this pressing plate has multiple upper extrusion modling bar, and on those, extrusion modling pole pair should those through holes on die cap; And,
One powder feeding base plate, to be installed on this board and not in this lower die block, de-material module and upper punch module side;
Wherein, board drives on de-material module displacement to middle mould and carries out matched moulds, board drives powder feeding base plate to slide and carry out first time in this de-material module again and fills out powder after middle mould, namely powder feeding base plate and de-material module are back to original position, coil tablet is placed on middle mould, board to drive on de-material module displacement to middle mould after matched moulds again, board drives powder feeding base plate slide in this de-material module and carry out being back to original position again after second time fills out powder, after now board drives upper punch module to be moved to de-material module matched moulds downwards, the metal dust extruding inserting middle mould is formed the core structure being coated on coil outer.
Wherein, in this, mould is a convex shape, it has a plate body, this plate body has a boss, this boss has the die cavity that those lower extrusion modling bars are passed.
Wherein, the both sides of this die cavity have the protuberance of different volumes size, and this two protuberance, in order to fix this coil tablet, enables the coil on this coil tablet be positioned on this die cavity.
Wherein, this lower extrusion modling bar is matrix arrangement.
Wherein, the through hole on this die cap is to should those die cavitys on boss and those two protuberances.
Wherein, these die cap both sides have multiple joining hole, those joining holes are connected to the multiple guide rods on board, drive by board at those guide rods, matched moulds on the boss making those guide rods drive this die cap to be moved to middle mould downwards.
Wherein, this powder feeding base plate has an elongated base plate, this elongated base plate has a delivery outlet, a side of this elongated base plate has a housing, and this enclosure interior is hollow form, and and forms an accommodation space between this elongated base plate.
Wherein, on this, extrusion modling bar is matrix arrangement.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
The schematic flow sheet of the secondary powder feeding structure of Fig. 1 making inductor of the present invention;
The stereoscopic decomposing schematic representation of the secondary powder feeding structure of Fig. 2 making inductor of the present invention;
Secondary powder feeding structure action one schematic diagram of Fig. 3 making inductor of the present invention;
Fig. 4 board of the present invention makes secondary powder feeding action two schematic diagram of inductor;
Fig. 5 board of the present invention makes secondary powder feeding action three schematic diagram of inductor;
Fig. 6 board of the present invention makes secondary powder feeding action four schematic diagram of inductor;
Fig. 7 board of the present invention makes secondary powder feeding action five schematic diagram of inductor;
Fig. 8 board of the present invention makes secondary powder feeding action six schematic diagram of inductor;
Fig. 9 inductor schematic appearance of the present invention.
Wherein, Reference numeral
Step 100 ~ 114
Lower die block 1
Base 11
Lower extrusion modling bar 111
Only high post 112
Middle mould 12
Plate body 121
Boss 122
Die cavity 123
Two protuberance 123a, 123b
Perforation 124
Through hole 125
De-material module 2
Die cap 21
Through hole 22
Block 23
Guide pillar 24
Liner skidding 25
Sliding members 26
Flexible member 27
Joining hole 28
Upper punch module 3
Pressing plate 31
Upper extrusion modling bar 32
Storage tank 33
Powder feeding base plate 4
Elongated base plate 41
Delivery outlet 42
Housing 43
Accommodation space 44
Coil tablet 5
Coil 51
Core structure 6
Embodiment
Hereby the technical content and a detailed description for the present invention, now coordinate accompanying drawing to be described as follows:
Refer to Fig. 1, the schematic flow sheet of the secondary powder feeding structure of making inductor of the present invention.As shown in the figure: the secondary powder feeding manufacture method of inductor of the present invention, mainly in there is lower die block, taking off the board of material module, upper punch module and powder feeding base plate (also known as cold press, in the present invention with board be called for short) on carry out secondary powder feeding make inductor, first, as step 100, matched moulds on the boss that board drives die cap of this de-material module to be displaced to middle mould, makes two protuberances of this boss be lived by the through hole frame of die cap.
Step 102, board drives powder feeding base plate to slide on the through hole of this die cap, and in the process slided, ferrite material powder is filled in this through hole institute frame and lives in the die cavity of boss by this powder feeding base plate, namely original position is back to, to complete first time powder feeding action after this powder feeding base plate has sent powder.
Step 104, after first time, powder feeding terminated, board drives the die cap of this de-material module to leave middle mould and is back to original position.
Step 106, is placed in this coil tablet on two protuberances of boss, makes this coil be arranged in the die cavity of this two protuberance.
Step 108, in coil tablet is positioned over after mould, the boss that this board drives the die cap of de-material module to be displaced to middle mould again carries out matched moulds.
Step 110, board drives powder feeding base plate to slide on the through hole of this die cap again, in the process slided, in the die cavity that the through hole institute frame that ferrite material powder is filled in this die cap by this powder feeding base plate is lived, namely original position is back to, to complete second time powder feeding action after this powder feeding base plate has sent powder.
Step 112, after secondary powder feeding terminates, board driving upper punch module is moved to this de-material module downwards and carries out matched moulds, in the through hole making the upper extrusion modling bar of this upper punch module be inserted into this die cap and die cavity, together with the lower extrusion modling bar in mould in this, metal dust inserted in the die cavity of boss is extruded the core structure being formed and be coated on coil outer.
Step 114, after extruding completes, this board can take off the inductor extruded and carry out hot pressing to the hot press of next procedure after driving this upper punch module and this de-material module to be back to original position.
Refer to Fig. 2, the stereoscopic decomposing schematic representation of the secondary powder feeding structure of making inductor of the present invention, and see also Fig. 6.As shown in the figure: the secondary powder feeding structure of making inductor of the present invention, is installed on board, comprises: die block 1, de-material module 2, upper punch module 3 and a powder feeding base plate 4 once.
This lower die block 1, it has one to be installed on base on board 11 and and to be assembled in middle mould 12 on this base 11, this base 11 has the lower extrusion modling bar 111 of multiple arrangement in matrix, the both sides of those lower extrusion modling bars 111 have multiple only high posts 112, only should have collision prevention function by high post 112, strike middle mould 12 to prevent this de-material module 2 from too pressing down.Separately, in this, mould 12 is in a convex shape, it has a plate body 121, this plate body 121 has a boss 122, this boss 122 has multiple correspondence and makes the die cavity 123 that those lower extrusion modling bars 111 pass, the both sides of this die cavity 123 have protuberance 123a, 123b (as shown in Figure 6) of different volumes size, and this two protuberance 123a, 123b, in order to fix this coil tablet 5, make the coil 51 on this coil tablet 5 can be positioned on this die cavity 123.Again, have for those only high post 112 multiple perforation 124 of passing on boss 122 both sides of this plate body 121, the both sides of those perforation 124 have the through hole 125 that aperture is greater than this perforation 124 aperture.
This de-material module 2, has a die cap 21, this die cap 21 has the through hole 22 of the arrangement in matrix, and this through hole 22 is to should those die cavitys 123 on boss 122 and those two protuberances 123a, 123b.Separately, through hole 22 both sides of this die cap 21 have multiple block 23, those blocks 23 respectively has the guide pillar 24 that runs through die cap 21 and block 23, the two ends of those guide pillars 24 are respectively configured with a liner skidding 25, this liner skidding 25 has multiple sliding members 26, and there is with this lower die block 1 in reciprocal flexible member 27 between this liner skidding 25 and this block 23 in its one end of those guide pillars 23, those guide pillars 24 form cross guide pillar with this block 23, when this die cap 21 is shifted, can precise displacement be positioned on the boss 122 of mould 12 in this.Again, guide pillar 24 both sides of die cap 21 has multiple joining hole 28, those joining holes 28 groups accept multiple guide rod (not shown) that board drives, and when those guide rods drive by board, those guide rods drive this die cap 21 to be moved on the boss 122 of middle mould 12 downwards.
This upper punch module 3, is installed on board, it has a pressing plate 31 driven by board, a side of this pressing plate 31 has the upper extrusion modling bar 32 of multiple arrangement in matrix, and on those, extrusion modling bar 32 is to should those through holes 22 on die cap 21.Separately, there is the storage tank 33 that those guide pillars 24 of multiple confession enter on those extrusion modling bar 32 both sides of this pressing plate 31.
This powder feeding base plate 4, be installed on this board, it has an elongated base plate 41, this elongated base plate 41 has a delivery outlet 42, one side of this elongated base plate 41 has a housing 43, this housing 43 inside is hollow form, and and form an accommodation space 44 between this elongated base plate 41, this accommodation space 44 is to load this metal dust.
Refer to Fig. 3 ~ Fig. 9, the action one to six of the secondary powder feeding structure of making inductor of the present invention and inductor schematic appearance.As shown in the figure: during making inductor of the present invention, the boss 122 that board drives the die cap 21 of de-material module 2 to be displaced to middle mould 12 carries out matched moulds, two protuberance 123a, 123b of this boss 122 are lived by through hole 22 frame of this die cap 21, now board drives powder feeding base plate 4 to slide on the through hole 22 of this die cap 21, in the process slided, ferrite material powder fills in the die cavity 123 that this through hole 22 frames live by this powder feeding base plate 4, namely original position is back to, to complete first time powder feeding action after this powder feeding base plate 4 has sent powder.
After first time, powder feeding terminated, board drives this de-material module 2 to leave middle mould 12 and is back to original position, now this coil tablet 5 can be placed on boss 122 by operator, is located, make this coil 51 be arranged in this die cavity 123 by two protuberance 123a, 123b of this boss 122.Be positioned over the die cavity 123 of boss 122 at coil tablet 5 after, the boss 122 that this board drives the die cap 21 of de-material module 2 to be displaced to middle mould 12 again carries out matched moulds, board drives powder feeding base plate 4 to slide on the through hole 22 of this die cap 21 again, in the process slided, in the die cavity 123 that through hole 22 frames that ferrite material powder is filled in this die cap 21 by this powder feeding base plate 4 are lived, namely this powder feeding base plate 4 is back to original position, to complete second time powder feeding action.
After secondary powder feeding terminates, board drives upper punch module 3 to bottom offset, make the upper extrusion modling bar 31 of this upper punch module 3 be inserted in this through hole 22, together with the lower extrusion modling bar 111 in mould in this 12, the metal dust inserted in die cavity 123 that through hole 22 frames live is extruded and form the core structure 6 of outer cladding in coil 51 outside.After extruding completes, this board can take off inductor to the another next stop extruded and carry out hot pressing after driving this upper punch module 3 and this de-material module 2 to be back to original position.
Due to above-mentioned secondary powder feeding program, make the metal dust inserted in the die cavity on the boss of middle mould disperse average and fill out the rising of powder precision, solve powder and make powder difficulty, the error amount of the inductor weight allowing each extruding complete is all in setting range value.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the present invention.
Claims (19)
1. a secondary powder feeding manufacture method for inductor, mainly has lower die block, is taking off and expect that the board of module, upper punch module and powder feeding base plate carries out inductor making, it is characterized in that, comprise step:
A), board to drive in this de-material module displacement to lower die block on mould, carries out matched moulds with mould in this;
B), board drives powder feeding base plate to slide in this de-material module, in sliding this powder feeding base plate metal dust is filled in in mould, be namely back to original position after this powder feeding base plate has sent powder, to complete first time powder feeding;
C), after first time powder feeding, board drives this de-material module to leave middle mould and is back to original position;
D), coil tablet is placed on mould;
E), board to drive in de-material module displacement to lower die block matched moulds on mould again;
F), board drives powder feeding base plate to slide in this de-material module again, and in sliding, metal dust fills in this after mould by this powder feeding base plate, is back to original position again after this powder feeding base plate has sent powder, to complete second time powder feeding;
G), after secondary powder feeding, the metal dust extruding inserting middle mould is formed the core structure being coated on coil outer after driving upper punch module to be moved to de-material module matched moulds downwards by board.
2. secondary powder feeding manufacture method according to claim 1, it is characterized in that, step lower die block a) has a base and be installed on board and be assembled in middle mould on this base, this base has the lower extrusion modling bar of multiple arrangement in matrix, mould has a plate body in this, this plate body has a boss, this boss has the die cavity that those lower extrusion modling bars are passed.
3. secondary powder feeding manufacture method according to claim 2, is characterized in that, the both sides of this die cavity have the protuberance of different volumes size, and this two protuberance, in order to fix this coil tablet, enables the coil on this coil tablet be positioned on this die cavity.
4. secondary powder feeding manufacture method according to claim 3, is characterized in that, step de-material module a) has a die cap, this die cap to have in matrix the through hole of arrangement, this through hole to should in mould boss on those passages.
5. secondary powder feeding manufacture method according to claim 4, it is characterized in that, step g) upper punch module be installed on board, it has a pressing plate driven by board, one side of this pressing plate has the upper extrusion modling bar of multiple arrangement in matrix, on those, extrusion modling pole pair should those through holes on die cap.
6. secondary powder feeding manufacture method according to claim 5, is characterized in that, step a) in board drive die cap of this de-material module to be displaced to middle mould boss on matched moulds, two protuberances of this boss are lived by the through hole frame of this die cap.
7. secondary powder feeding manufacture method according to claim 6, is characterized in that, in step b) in this powder feeding base plate through hole institute frame of metal dust being filled in this die cap live in mould die cavity in.
8. secondary powder feeding manufacture method according to claim 7, is characterized in that, in steps d) in this coil tablet is placed on middle mould, by this boss two protuberances locate, make this coil be arranged in this die cavity.
9. secondary powder feeding manufacture method according to claim 8, is characterized in that, in step e) after coil tablet is positioned over middle mould, matched moulds on the boss that this board drives the die cap of de-material module to be displaced to middle mould again.
10. secondary powder feeding manufacture method according to claim 9, it is characterized in that, in step f) in board again drive powder feeding base plate to slide on the through hole of this die cap, in the process slided, the through hole institute frame that metal dust is filled in this die cap by this powder feeding base plate live in mould die cavity in.
11. secondary powder feeding manufacture methods according to claim 10, it is characterized in that, in step g) after secondary powder feeding terminates, board drives upper punch module to be moved to downwards and takes off expects that module carries out matched moulds, make the upper extrusion modling bar of this upper punch module be inserted in the through hole of this die cap, with the lower extrusion modling bar in mould in this by insert through hole institute frame live in mould die cavity in metal dust extrude and form the iron core of outer cladding on coil.
The secondary powder feeding structure of 12. 1 kinds of inductors, is characterized in that, comprising:
Die block once, it has a base and be installed on board and is assembled in middle mould on this base, this base has multiple lower extrusion modling bar through mould in this;
One de-material module, to be installed on board and to be positioned at above this lower die block, it having a die cap, this die cap has the through hole of the arrangement in matrix;
One upper punch module, to be installed on board and to be positioned at above this de-material module, it having a pressing plate driven by board, a side of this pressing plate has multiple upper extrusion modling bar, and on those, extrusion modling pole pair should those through holes on die cap; And,
One powder feeding base plate, to be installed on this board and not in this lower die block, de-material module and upper punch module side;
Wherein, board drives on de-material module displacement to middle mould and carries out matched moulds, board drives powder feeding base plate to slide and carry out first time in this de-material module again and fills out powder after middle mould, namely powder feeding base plate and de-material module are back to original position, coil tablet is placed on middle mould, board to drive on de-material module displacement to middle mould after matched moulds again, board drives powder feeding base plate slide in this de-material module and carry out being back to original position again after second time fills out powder, after now board drives upper punch module to be moved to de-material module matched moulds downwards, the metal dust extruding inserting middle mould is formed the core structure being coated on coil outer.
13. secondary powder feeding structures according to claim 12, it is characterized in that, in this, mould is a convex shape, it has a plate body, this plate body has a boss, this boss has the die cavity that those lower extrusion modling bars are passed.
14. secondary powder feeding structures according to claim 13, it is characterized in that, the both sides of this die cavity have the protuberance of different volumes size, and this two protuberance, in order to fix this coil tablet, enables the coil on this coil tablet be positioned on this die cavity.
15. secondary powder feeding structures according to claim 14, is characterized in that, this lower extrusion modling bar is matrix arrangement.
16. secondary powder feeding structures according to claim 15, is characterized in that, the through hole on this die cap is to should those die cavitys on boss and those two protuberances.
17. secondary powder feeding structures according to claim 16, it is characterized in that these die cap both sides have multiple joining hole, those joining holes are connected to the multiple guide rods on board, drive by board at those guide rods, matched moulds on the boss making those guide rods drive this die cap to be moved to middle mould downwards.
18. secondary powder feeding structures according to claim 17, is characterized in that this powder feeding base plate has an elongated base plate, this elongated base plate has a delivery outlet, one side of this elongated base plate has a housing, and this enclosure interior is hollow form, and and forms an accommodation space between this elongated base plate.
19. secondary powder feeding structures according to claim 18, is characterized in that, on this, extrusion modling bar is matrix arrangement.
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| CN201410234571.1A CN105225817A (en) | 2014-05-29 | 2014-05-29 | The secondary powder feeding manufacture method of inductor and structure thereof |
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| CN107068375B (en) * | 2017-02-22 | 2018-11-16 | 湧德电子股份有限公司 | Make the sectional die of inductor |
| CN112519130A (en) * | 2020-12-08 | 2021-03-19 | 昆山玛冀电子有限公司 | Mould for manufacturing injection molding inductor |
| CN114899001A (en) * | 2022-05-13 | 2022-08-12 | 深圳市固电电子有限公司 | Powder forming method, controller and powder forming system |
| CN114899001B (en) * | 2022-05-13 | 2024-03-15 | 深圳市固电电子有限公司 | Powder forming method, controller and powder forming system |
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