CN201449885U - Soft magnetic ferrite magnetic core forming mould - Google Patents
Soft magnetic ferrite magnetic core forming mould Download PDFInfo
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- CN201449885U CN201449885U CN200920046794XU CN200920046794U CN201449885U CN 201449885 U CN201449885 U CN 201449885U CN 200920046794X U CN200920046794X U CN 200920046794XU CN 200920046794 U CN200920046794 U CN 200920046794U CN 201449885 U CN201449885 U CN 201449885U
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Abstract
The utility model discloses a soft magnetic ferrite magnetic core forming mould. A middle mould can axially set a distance in a sliding mode, and is radially stopped and positioned on a mould frame, the upper side of the middle mould is provided with a forming groove, the lower side of the middle mould is respectively provided with a lower punching hole 1 and a lower punching hole 2, and the upper ends of the lower punching hole 1 and the lower punching hole 2 are communicated with the forming groove of the middle mould. The lower end of a lower punch 1 is fixedly arranged on the mould frame, and the upper end of the lower punch 1 is axially inserted in the lower punching hole 1of the middle mould in a sliding mode. The lower end of a lower punch 2 can axially set a distance in a sliding mode and is radially stopped and positioned on the mould frame, and the upper end of the lower punch 2 is axially inserted in the lower punching hole 2 of the middle mould in a sliding mode. The lower end of an upper punch is axially inserted in the forming groove at the upper side of the middle mould in a sliding mode. The lower punch 1 and the lower punch 2 are respectively and oppositely pressed with the upper punch to form a support and a central post of a product, i.e. the size and the density of the support and the central post are respectively controlled, and an air gap of the centre post is arranged in advance so that the thickness of the support of the product is only grinded in the subsequent grinding procedure without grinding the centre post, the scrappage of the products reduced, and the labor cost is saved.
Description
Technical field
The utility model relates to a kind of metal molding die, particularly a kind of mould for molding magnetic core of soft ferrite.
Background technology
In recent years, the trend of field apparatus components such as computer, video recording and communication apparatus is to do littler and littler, also just more and more higher to magnetic core small size and high-precision requirement simultaneously, especially higher for the requirement of the accuracy of magnetic core air gap, tradition air gap class magnetic core processing method is by adjusting small-sized air gap grinder station, and operating personnel carry out the air gap attrition process one by one to product.General air gap class magnetic core commonly used, its preparation technology is many by rotary moulding board straight forming, after high temperature sintering, semi-finished product size attrition process, adopts the small hand grinder need process air gap part attrition process air gap to it.This kind air gap class magnetic core producing process generally will pass through green compact moulding, sintering, attrition process, air gap processing technology, the defective that this air gap processing method exists is: it is bigger influenced by human factor in the magnetic core air gap course of processing, magnetic core air gap dimensional accuracy is restive, properties of product have been influenced, the product yield is lower, while product process flow complexity, cost of labor is higher, production capacity is lower, labor strength is big, waste time and energy, in air gap processing, inevitably have the problems such as waste of raw material.
The utility model content
In order to remedy above deficiency, the utility model provides a kind of mould for molding magnetic core of soft ferrite, uses this mould can preset magnetic ferrites magnetic core air gap, makes things convenient for controlling magnet ferrite core size of gaps, improve the precision and the yield of product, reduced cost of labor.
The utility model for the technical scheme that solves its technical problem and adopt is: a kind of mould for molding magnetic core of soft ferrite, comprise upper punch, middle mould, next dashes, following two punch and mould bases, to use direction to be benchmark, in mold shaft be positioned on the mould bases to setpoint distance radial stop slidably, middle mould upside is provided with shaping groove, should be respectively equipped with next punching and following two punch hole by middle mould downside, this next punching and following two punch hole upper end are communicated with the shaping groove of middle mould, next sweeps away end and is fixedly arranged on the mould bases, next rushes to end and axially slidably is inserted in next punching of middle mould, the following two punch lower end axially slidably the setpoint distance radial stop be positioned on the mould bases, the following two punch top axial slidably is inserted in the following two punch hole of middle mould, the upper punch lower end axially slidably is inserted in the shaping groove of middle mould upside, the upper punch upper end detachably is fixedly arranged on the hold-down devices of pressure forming machine, mould bases detachably is fixedly arranged on the workbench of pressure forming machine, during use, powder is filled and presented in the shaping groove of middle mould, on be punched under the drive of the hold-down devices of pressure forming machine and move downward, material powder in the shaping groove of upper punch lower end centering mould carries out the precompressed setting-up time, upper punch then, in mould and following two punch together respectively correspondence move downward upper punch and set its position, middle mould desired location and following two punch desired location, this moment, upper punch was dashed with next respectively, middle mould and following two punch produce pressing, product pin and center pillar are pressed into setting size and density, because it is separate with following two punch that next dashes, therefore effectively guaranteed the adjustable of column dimension and density in the product, be that the center pillar height is lower than the pin height, preset the air gap of center pillar.
Further improvement as a kind of mould of the present utility model, in mold shaft to the structure that setpoint distance radial stop slidably is positioned on the mould bases be: be provided with first cylinder and a middle mould baffle plate, the cylinder body lower end of this first cylinder is fixedly arranged on the mould bases, the piston rod upper end of first cylinder is connected with middle mould lower surface, middle mould baffle plate is fixed positioned on the mould bases of middle mould below setpoint distance, when first cylinder piston rod moves upward under gas pressure, middle mould also moves upward, can insert the material powder in the concave groove of middle mould this moment, in upper punch presses down during mould, middle mould also moves downward, after middle mould moves downward middle mould desired location, in the mould lower end only peak in the mould baffle plate, can't move downward again, this moment, upper punch and next were dashed, following two punch is finished the powder compacting jointly.
Further improvement as a kind of mould of the present utility model, the structure that the axial slidably setpoint distance radial stop in following two punch lower end is positioned on the mould bases is: be provided with at least one second cylinder and following two punch baffle plate, the cylinder body lower end of this second cylinder is fixedly arranged on the mould bases, the piston rod upper end of this second cylinder is fixed positioned in the following two punch lower end, the following two punch baffle plate is fixed positioned on the mould bases of following two punch below setpoint distance, when on rush at when motion, when the piston rod of second cylinder of following two punch moves downward the following two punch desired location under pressure, the following two punch lower end only peaks at the following two punch baffle plate, can't move downward, upper punch and following two punch are finished powder jointly and are suppressed compacting size and the density that guarantees the product center pillar at this moment again.
Further improvement as a kind of mould of the present utility model, the quantity of second cylinder is two, is symmetrically distributed in the following two punch both sides, so just guarantees the following two punch stress balance, it is crooked to prevent that following two punch from taking place, and effectively guarantees the size and the density accuracy of compacting center pillar.
Further improvement as a kind of mould of the present utility model, middle mould baffle plate and following two punch baffle plate lower end are equipped with the external screw thread of preseting length, be provided with first gear and second gear, first gear is provided with internal thread, the middle mould baffle plate and the external screw thread of following two punch baffle plate lower end and the internal thread activity of first gear are connected with a joggle, first gear and the engagement of second gear teeth, second gear is fixed positioned on the mould bases, like this as long as regulate the second gear rotational angle, second gear just drives first gear by engagement and rotates, mould baffle plate and following two punch baffle plate moved up and down during first gear rotated and just drives, thereby play the fine setting effect that centering mould and following two punch move downward the position, further guaranteed the size precision of product.
Useful technique effect of the present utility model is: the utility model in use in, next forms the pin and the center pillar of product to pressure towards and upper punch independent with following two punch, next dashes and following two punch does not interfere with one another, can distinguish the size and the density of control pin and center pillar, realized that the height of green compact center pillars is lower than the height of pin, thereby preset the center pillar air gap, make product in follow-up grinding magnetic core size operation, only need to grind magnetic ferrite magnetic core pin thickness to setting size, center pillar then need not to grind, reduced product scrappage, saved cost of labor.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Embodiment: a kind of mould for molding magnetic core of soft ferrite, comprise upper punch 1, middle mould 2, next dashes 3, following two punch 4 and mould bases 5, to use direction to be benchmark, in mould 2 axially slidably the setpoint distance radial stop be positioned on the mould bases 5, middle mould 2 upsides are provided with shaping groove 21, should be respectively equipped with next punching 22 and following two punch hole 23 by middle mould 2 downsides, this next punching 22 and following two punch hole 23 upper ends are communicated with the shaping groove 21 of middle mould 2, next dashes 3 lower ends and is fixedly arranged on the mould bases 5, next dashes 3 top axials and slidably is inserted in next punching 22 of middle mould, following two punch 4 lower ends axially slidably the setpoint distance radial stop be positioned on the mould bases 5, following two punch 4 top axials slidably are inserted in the following two punch hole 23 of middle mould, upper punch 1 lower end axially slidably is inserted in the shaping groove 21 of middle mould upside, upper punch 1 upper end detachably is fixedly arranged on the hold-down devices of pressure forming machine, mould bases 5 detachably is fixedly arranged on the workbench of pressure forming machine, during use, powder is filled and presented in the shaping groove 21 of middle mould 2, upper punch 1 is moving downward under the drive of the hold-down devices of pressure forming machine, material powder in the shaping groove 21 of upper punch 1 lower end centering mould 2 carries out the precompressed setting-up time, upper punch then, in mould and following two punch 4 together respectively correspondence move downward upper punch and set its position, middle mould desired location and following two punch desired location, this moment, upper punch was dashed with next respectively, middle mould and following two punch produce pressing, product pin and center pillar are pressed into setting size and density, because next is separate with following two punch 4 towards 3, therefore effectively guaranteed the adjustable of column dimension and density in the product, be that the center pillar height is lower than the pin height, preset the air gap of center pillar.
The structure that the middle mould 2 axial slidably setpoint distance radial stops of described mould are positioned on the mould bases 5 is: be provided with first cylinder 24 and a middle mould baffle plate 25, the cylinder body lower end of this first cylinder 24 is fixedly arranged on the mould bases 5, the piston rod upper end of first cylinder 24 is connected with middle mould 2 lower surfaces, middle mould baffle plate 25 is fixed positioned on the mould bases 5 of middle mould 2 below setpoint distances, when first cylinder, 24 piston rods move upward under gas pressure, middle mould 2 also moves upward, can insert the material powder in the concave groove 21 of middle mould this moment, in upper punch 1 presses down during mould 2, middle mould 2 also moves downward, after middle mould 2 moves downward middle mould desired location, mould baffle plate 25 during middle mould 2 lower ends only peak at, can't move downward, upper punch 1 dashes 3 with next at this moment again, following two punch 4 is finished the powder compacting jointly.
The structure that the axial slidably setpoint distance radial stop in following two punch 4 lower ends of described mould is positioned on the mould bases 5 is: be provided with at least one second cylinder 41 and following two punch baffle plate 42, the cylinder body lower end of this second cylinder 41 is fixedly arranged on the mould bases 5, the piston rod upper end of this second cylinder 41 is fixed positioned in following two punch 4 lower ends, following two punch baffle plate 42 is fixed positioned on the mould bases 5 of following two punch 4 below setpoint distances, when upper punch 1 to when motion, when the piston rod of second cylinder 41 of following two punch 4 moves downward the following two punch desired location under pressure, following two punch 4 lower ends only peak at following two punch baffle plate 42, can't move downward, upper punch 1 is finished powder jointly with following two punch 4 and is suppressed compacting size and the density that guarantees the product center pillar at this moment again.
The quantity of second cylinder 41 of described mould is two, is symmetrically distributed in following two punch 4 both sides, so just guarantees following two punch 4 stress balances, and it is crooked to prevent that following two punch 4 from taking place, and effectively guarantees the size and the density accuracy of compacting center pillar.
The middle mould baffle plate 25 of described mould and following two punch baffle plate 42 lower ends are equipped with the external screw thread 63 of preseting length, be provided with first gear 61 and second gear 62, first gear 61 is provided with internal thread, the middle mould baffle plate 25 and the external screw thread 63 of following two punch baffle plate 42 lower ends and the internal thread activity of first gear 61 are connected with a joggle, first gear 61 and the engagement of second gear, 62 teeth, second gear 62 is fixed positioned on the mould bases 5, like this as long as regulate second gear, 62 rotational angles, second gear 62 just drives first gear 61 by engagement and rotates, mould baffle plate 25 and following two punch baffle plate 42 moved up and down during first gear 61 rotated and just drives, thereby play the fine setting effect that centering mould 2 and following two punch 4 move downward the position, further guaranteed the size precision of product.
Claims (5)
1. mould for molding magnetic core of soft ferrite, it is characterized in that: comprise upper punch (1), middle mould (2), next dashes (3), following two punch (4) and mould bases (5), to use direction to be benchmark, in mould (2) axially slidably the setpoint distance radial stop be positioned on the mould bases (5), middle mould (2) upside is provided with shaping groove (21), should be respectively equipped with next punching (22) and following two punch hole (23) by middle mould (2) downside, this next punching (22) and following two punch hole (23) upper end are communicated with the shaping groove (21) of middle mould (2), next dashes (3) lower end and is fixedly arranged on the mould bases (5), next dashes (3) top axial and slidably is inserted in next punching (22) of middle mould, following two punch (4) lower end axially slidably the setpoint distance radial stop be positioned on the mould bases (5), in the following two punch hole (23) of mould, upper punch (1) lower end axially slidably was inserted in the shaping groove (21) of middle mould upside during following two punch (4) top axial slidably was inserted in.
2. a kind of mould as claimed in claim 1, it is characterized in that: middle mould (2) axially slidably the structure that is positioned on the mould bases (5) of setpoint distance radial stop be: be provided with first cylinder (24) and a middle mould baffle plate (25), the cylinder body lower end of this first cylinder (24) is fixedly arranged on the mould bases (5), the piston rod upper end of first cylinder (24) is connected with middle mould (2) lower surface, and middle mould baffle plate (25) is fixed positioned on the mould bases (5) of middle mould (2) below setpoint distance.
3. a kind of mould as claimed in claim 1, it is characterized in that: following two punch (4) lower end axially slidably the structure that is positioned on the mould bases (5) of setpoint distance radial stop be: be provided with at least one second cylinder (41) and following two punch baffle plate (42), the cylinder body lower end of this second cylinder (41) is fixedly arranged on the mould bases (5), the piston rod upper end of this second cylinder (41) is fixed positioned in following two punch (4) lower end, and following two punch baffle plate (42) is fixed positioned on the mould bases (5) of following two punch (4) below setpoint distance.
4. a kind of mould as claimed in claim 3 is characterized in that: the quantity of second cylinder (41) is two, is symmetrically distributed in following two punch (4) both sides.
5. as claim 2 or 3 described a kind of moulds, it is characterized in that: middle mould baffle plate (25) and following two punch baffle plate (42) lower end are equipped with the external screw thread (63) of preseting length, be provided with first gear (61) and second gear (62), first gear (61) is provided with internal thread, the external screw thread (63) of middle mould baffle plate (25) and following two punch baffle plate (42) lower end is connected with a joggle with the internal thread activity of first gear (61), first gear (61) and the engagement of second gear (62) tooth, second gear (62) is fixed positioned on the mould bases (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920046794XU CN201449885U (en) | 2009-06-25 | 2009-06-25 | Soft magnetic ferrite magnetic core forming mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920046794XU CN201449885U (en) | 2009-06-25 | 2009-06-25 | Soft magnetic ferrite magnetic core forming mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201449885U true CN201449885U (en) | 2010-05-05 |
Family
ID=42554607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920046794XU Expired - Fee Related CN201449885U (en) | 2009-06-25 | 2009-06-25 | Soft magnetic ferrite magnetic core forming mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201449885U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151831A (en) * | 2011-03-17 | 2011-08-17 | 越峰电子（昆山）有限公司 | Improved magnetic core forming die |
| CN102218768A (en) * | 2011-04-22 | 2011-10-19 | 江门安磁电子有限公司 | Forming die of Mn-Zn soft magnetic ferrite magnetic core |
| CN102941616A (en) * | 2012-11-22 | 2013-02-27 | 海宁联丰磁业股份有限公司 | Manganese zinc ferrite magnetic core forming framework |
| CN102962880A (en) * | 2012-11-22 | 2013-03-13 | 海宁联丰磁业股份有限公司 | Manganese-zinc ferrite magnetic core molding press |
| CN103691943A (en) * | 2013-12-31 | 2014-04-02 | 昆山优磁电子有限公司 | U-F shaped magnetic-core die |
| CN103736998A (en) * | 2013-12-31 | 2014-04-23 | 昆山优磁电子有限公司 | RH type magnetic core mould |
| CN105845422A (en) * | 2015-02-03 | 2016-08-10 | 胜美达集团株式会社 | Manufacturing method of magnetic element |
-
2009
- 2009-06-25 CN CN200920046794XU patent/CN201449885U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151831A (en) * | 2011-03-17 | 2011-08-17 | 越峰电子（昆山）有限公司 | Improved magnetic core forming die |
| CN102218768A (en) * | 2011-04-22 | 2011-10-19 | 江门安磁电子有限公司 | Forming die of Mn-Zn soft magnetic ferrite magnetic core |
| CN102941616A (en) * | 2012-11-22 | 2013-02-27 | 海宁联丰磁业股份有限公司 | Manganese zinc ferrite magnetic core forming framework |
| CN102962880A (en) * | 2012-11-22 | 2013-03-13 | 海宁联丰磁业股份有限公司 | Manganese-zinc ferrite magnetic core molding press |
| CN102941616B (en) * | 2012-11-22 | 2014-08-06 | 海宁联丰磁业股份有限公司 | Manganese zinc ferrite magnetic core forming framework |
| CN103691943A (en) * | 2013-12-31 | 2014-04-02 | 昆山优磁电子有限公司 | U-F shaped magnetic-core die |
| CN103736998A (en) * | 2013-12-31 | 2014-04-23 | 昆山优磁电子有限公司 | RH type magnetic core mould |
| CN105845422A (en) * | 2015-02-03 | 2016-08-10 | 胜美达集团株式会社 | Manufacturing method of magnetic element |
| CN105845422B (en) * | 2015-02-03 | 2019-07-09 | 胜美达集团株式会社 | A kind of manufacturing method of magnetic element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20170625 |