CN111463005A - Powder forming machine is used in production of soft magnetic core - Google Patents
Powder forming machine is used in production of soft magnetic core Download PDFInfo
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- CN111463005A CN111463005A CN202010258896.9A CN202010258896A CN111463005A CN 111463005 A CN111463005 A CN 111463005A CN 202010258896 A CN202010258896 A CN 202010258896A CN 111463005 A CN111463005 A CN 111463005A
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- die
- powder
- magnetic core
- soft magnetic
- pressing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
Abstract
The invention relates to the technical field of magnetic core production equipment, and discloses a powder forming machine for producing a soft magnetic core, which comprises shaft sleeves, wherein the middle part of the outer side of each shaft sleeve is fixedly sleeved with a turntable, the bottoms of the inner rings of the two shaft sleeves are respectively fixedly sleeved with a limiting ring, and one inner ring of the upper limiting ring is movably sleeved with an upper pressing rod. This powder forming machine is used in soft magnetic core production lets in gas through the admission line to pressing gasbag inside, the powder of filling is carried out the pre-compaction to mould one, mould two, mould three inside to the pressing gasbag after the inflation, the air output that accomplishes the compaction at last detects, contrast all the other air outputs the difference, can calculate the difference of powder in every mould, through discharging unnecessary powder, can avoid the size between the product of each mould extrusion, weight difference is big, the problem of the not frame of installation when sintering is possible to use after the shrinkage in proportion, the qualification rate and the uniformity of product have been improved.
Description
Technical Field
The invention relates to the technical field of magnetic core production equipment, in particular to a powder forming machine for producing a soft magnetic core.
Background
The soft magnetic ferrite forming process is a key process of magnetic core quality control between powder preparation and nitrogen kiln sintering, and has the main task of pressing finished product powder into a required qualified blank through a press and a die, the quality of the blank directly determines the quality and the qualification rate of a final product, and the quality control of the forming process mainly has three factors, namely the size, the weight and the density of the blank, and in addition, the appearance defects of cracking, layering and burrs of the blank need to be controlled.
The rotary powder forming machine can be used for pressing various blank products such as cylindrical, square and porous products, has high efficiency and high capacity, and is widely applied to the forming process of the soft magnetic ferrite magnetic core; meanwhile, in the prior art, the appearance defects of cracking, layering, burrs and the like of the blank are controlled, the blank needs to be taken out and then manually detected, time and labor are consumed, and a process is added, so that the powder forming machine for producing the soft magnetic core is provided.
Disclosure of Invention
The invention provides a powder forming machine for producing a soft magnetic core, which has the advantages of consistent size and quality of products extruded by a die and solves the problems in the background technology.
The invention provides the following technical scheme: the utility model provides a powder forming machine is used in soft-magnetic core production, includes the axle sleeve, the fixed carousel that has cup jointed, two of the fixed cover in the middle part in the axle sleeve outside the bottom of axle sleeve inner circle all has cup jointed the spacing ring, and one of them inner circle activity that is located the top spacing ring has cup jointed presses the stick, and another inner circle activity that is located the below spacing ring has cup jointed down and presses the stick, on press the stick and press the equal swing joint in one side that the stick kept away from each other to have one to press excellent push rod, the axle sleeve below is provided with the suppression mesa, place the three feeding push pedal that is located on pressing stick one side on the suppression mesa, set up three annular through-hole on the suppression mesa and fixedly cup jointed mould one, mould two, mould three.
Preferably, go up the pressure stick including pressing excellent top, admission line, suppression gasbag, activity shrouding, the cylindricality through-hole has been seted up at the middle part on pressure stick top, and presses excellent top to have the admission line through the joint through the cylindricality, the inside suppression gasbag of having placed of ring groove and draw-in groove has been seted up at the top on pressure stick top, the bottom and the admission line top of suppression gasbag switch-on each other, the top on pressure stick top has been seted up the wedge groove and has been had the activity shrouding through wedge groove fixed mounting.
Preferably, the middle part of the first die is provided with a burr removing ring, one side of the first die is provided with a side wall hole, the periphery of one side of the first die is fixedly provided with a powder collecting box, and the first die is communicated with the powder collecting box through the side wall hole on one side of the first die.
Preferably, the burr removing ring is an annular metal block made of a frosted material, and the diameter and the aperture of the burr removing ring are identical to those of the mold.
Preferably, the second die, the third die and the first die are respectively production dies of three different blanks.
The invention has the following beneficial effects:
1. this powder forming machine is used in soft magnetic core production lets in gas through the admission line to pressing gasbag inside, the powder of filling is carried out the pre-compaction to mould one, mould two, mould three inside to the pressing gasbag after the inflation, the air output that accomplishes the compaction at last detects, contrast all the other air outputs the difference, can calculate the difference of powder in every mould, through discharging unnecessary powder, can avoid the size between the product of each mould extrusion, weight difference is big, the problem of the not frame of installation when sintering is possible to use after the shrinkage in proportion, the qualification rate and the uniformity of product have been improved.
2. This powder make-up machine is used in soft-magnetic core production presses excellent push rod to make through the drive and goes up to press the stick, press the stick down and move towards the top uniformly, and the in-process that presses the stick to remove the stick and drive preliminary compaction powder through the burr remove the ring can polish preliminary fashioned dysmorphism powder post to and pack the crackle, and there is appearance defect influence use and aesthetic measure blank after avoiding burning.
3. This powder forming machine is used in soft magnetic core production through at final compaction in-process, uses the carousel to drive the spacing ring and rotates, to last pressure stick and the peripheral formation vibrations of pushing down stick one side, forms the impact force when the extrusion powder and carries out the compaction, has solved the problem that the finished product fault appears and has avoided the blank after firing to have appearance defects.
Drawings
FIG. 1 is an overall schematic view of the present invention;
FIG. 2 is a schematic view of the inside of the upper press bar of the present invention.
In the figure: 1. a shaft sleeve; 2. a turntable; 3. a limiting ring; 4. pressing the rod upwards; 41. pressing the top end of the rod; 42. an air intake duct; 43. pressing the air bag; 44. a movable closing plate; 5. pressing the rod downwards; 6. a rod pressing push rod; 7. pressing the table top; 8. a feeding push plate; 9. a first mould; 10. a second die; 11. a third mold; 12. a burr removal ring; 13. a powder collection box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a powder forming machine for producing a soft magnetic core comprises shaft sleeves 1, a turntable 2 is fixedly sleeved in the middle of the outer side of each shaft sleeve 1, limiting rings 3 are fixedly sleeved at the bottoms of the inner rings of the two shaft sleeves 1, an upper pressing rod 4 is movably sleeved in one of the inner rings of the upper limiting ring 3, the upper pressing rod 4 comprises a pressing rod top end 41, an air inlet pipeline 42, a pressing air bag 43 and a movable sealing plate 44, a cylindrical through hole is formed in the middle of the pressing rod top end 41, the air inlet pipeline 42 is clamped and connected to the pressing rod top end 41 through the cylindrical through hole, an annular clamping groove is formed in the top of the pressing rod top end 41, the pressing air bag 43 is placed in the clamping groove, the bottom of the pressing air bag 43 is communicated with the top end of the air inlet pipeline 42, a wedge groove is formed in the top of the pressing rod top end 41, the movable sealing plate 44 is fixedly installed, one side of the upper pressing rod 4 and one side of the lower pressing rod 5 which are far away from each other are movably connected with a pressing rod push rod 6, a pressing table surface 7 is arranged below the shaft sleeve 1, three feeding push plates 8 which are positioned on one side of the upper pressing rod 4 are placed on the pressing table surface 7, three annular through holes are formed in the pressing table surface 7, a first die 9, a second die 10 and a third die 11 are respectively and fixedly sleeved through the three annular through holes, a burr removing ring 12 is arranged in the middle of the first die 9, the burr removing ring 12 is an annular metal block made of frosted materials, the diameter and the aperture of the burr removing ring 12 are completely the same as those of the first die 9, one side of the first die 9 is provided with a side wall hole, and the periphery of one side of the first, and the first die 9 is communicated with the powder collecting box 13 through a side wall hole on one side of the first die, and the second die 10, the third die 11 and the first die 9 are production dies of three different blanks respectively.
The working principle comprises the following steps: pre-pressing, namely driving a pressing rod push rod 6 to push the pressing rod 4 and a pressing rod 5 to respectively slide towards the directions close to a first die 9, a second die 10 and a third die 11, when the pressing rod 4 and the pressing rod 5 simultaneously move to the two ends of the first die 9, the second die 10 and the third die 11, stopping driving the pressing rod push rod 6, starting a ventilation device connected with a gas inlet pipeline 42 to introduce gas into a pressing air bag 43 through the gas inlet pipeline 42, and synchronously extruding powder filled in the first die 9, the second die 10 and the third die 11 through the expanded pressing air bag 43;
step two: when the quality is equal, after the pressing air bag 43 completely presses the powder of the first die 9, the second die 10 and the third die 11, the air volume of the final pressing is detected, the difference is obtained by comparing the rest air volumes, the height of the powder which is discharged by the rest dies compared with the final pressing die is calculated according to the difference and the cross sectional areas of different dies, the pressing rod 5 is moved downwards according to the numerical value to expose the side wall holes of the first die 9, the second die 10 and the third die 11 which are communicated with the powder collecting box 13, the air difference is supplemented, and the rest powder is extruded, so that the powder in each die reaches the equal quality standard;
step three: deburring, the ventilating device connected with the air inlet pipeline 42 is opened again, the ventilating device is enabled to discharge air inside the pressing air bag 43 outwards and suck the air inlet pipeline 42 into the top end 41 of the pressing rod, the movable sealing plate 44 is ejected by an internal spring to seal the port of the top end 41 of the pressing rod after the supporting of the pressing air bag 43 is lost, then the pressing rod push rod 6 is driven to enable the upper pressing rod 4 and the lower pressing rod 5 to move upwards uniformly, the lower pressing rod 5 drives the preliminarily compacted powder to pass through the burr removing ring 12 in the moving process, the preliminarily formed special-shaped powder column is polished, burrs on the outer surface of the preliminarily formed special-shaped powder column are removed, and cracks possibly existing on the outer surface of the preliminarily formed powder column are filled in the moving process;
step four: the press forming, go up and press excellent 4, press 5 unified upsides of stick to remove until supreme pressure stick 4 reachs mould 9 down, mould two 10, three 11 top port departments of mould stop, start and press excellent push rod 6 to make it impel and press excellent 4, press 5 each other to be close to and carry out the compaction to the dysmorphism powder post of preliminary shaping between the two, open the inside motor of make-up machine simultaneously, make carousel 2 drive spacing ring 3 and rotate, to the peripheral vibrations that form of pressing excellent 4 and 5 one side of stick down, form the impact force and carry out the compaction when extruding the powder, avoid the problem of fault to appear in the finished product.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a powder forming machine is used in production of soft magnetic core, includes axle sleeve (1), its characterized in that: the middle part of the outer side of the shaft sleeves (1) is fixedly sleeved with a turntable (2), the bottoms of the inner rings of the two shaft sleeves (1) are fixedly sleeved with limiting rings (3), wherein an upper pressing rod (4) is movably sleeved on the inner ring of one of the upper limiting rings (3), and the inner ring of the other lower limiting ring (3) is movably sleeved with a pressing rod (5), one sides of the upper pressing rod (4) and the lower pressing rod (5) which are far away from each other are movably connected with a pressing rod push rod (6), a pressing table board (7) is arranged below the shaft sleeve (1), three feeding push plates (8) positioned at one side of the upper pressing rod (4) are arranged on the pressing table board (7), three annular through holes are formed in the pressing table board (7) and are respectively and fixedly sleeved with a first die (9), a second die (10) and a third die (11).
2. The powder molding machine for producing a soft magnetic core according to claim 1, wherein: go up pressure stick (4) including pressure stick top (41), admission line (42), suppression gasbag (43), activity shrouding (44), the cylindricality through-hole has been seted up at the middle part of pressure stick top (41), and presses stick top (41) to have admission line (42) through the joint through the cylindricality, annular clamping groove and the inside suppression gasbag (43) of having placed of draw-in groove have been seted up at the top of pressure stick top (41), the bottom and the admission line (42) top of suppression gasbag (43) switch-on each other, the top of pressure stick top (41) has been seted up the wedge groove and has been had activity shrouding (44) through wedge groove fixed mounting.
3. The powder molding machine for producing a soft magnetic core according to claim 1, wherein: the middle part of the first die (9) is provided with a burr removing ring (12), one side of the first die (9) is provided with a side wall hole, the periphery of one side of the first die (9) is fixedly provided with a powder collecting box (13), and the first die (9) is communicated with the powder collecting box (13) through the side wall hole on one side of the first die.
4. The powder molding machine for producing a soft magnetic core according to claim 2, wherein: the burr removing ring (12) is an annular metal block made of frosted materials, and the diameter and the aperture of the burr removing ring (12) are completely the same as those of the first die (9).
5. The powder molding machine for producing a soft magnetic core according to claim 1, wherein: the second die (10), the third die (11) and the first die (9) are production dies of three different blanks respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010258896.9A CN111463005B (en) | 2020-04-03 | 2020-04-03 | Powder forming machine is used in production of soft magnetic core |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010258896.9A CN111463005B (en) | 2020-04-03 | 2020-04-03 | Powder forming machine is used in production of soft magnetic core |
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| Publication Number | Publication Date |
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| CN111463005A true CN111463005A (en) | 2020-07-28 |
| CN111463005B CN111463005B (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010258896.9A Active CN111463005B (en) | 2020-04-03 | 2020-04-03 | Powder forming machine is used in production of soft magnetic core |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115383116A (en) * | 2022-09-02 | 2022-11-25 | 江西耀润磁电科技有限公司 | Forming and processing equipment and processing method for inductor magnetic core |
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| CN2866125Y (en) * | 2006-02-15 | 2007-02-07 | 南京东部精密机械有限公司 | Prepressing system for middle and small size dry powder press |
| US20090193994A1 (en) * | 2008-02-01 | 2009-08-06 | American Pioneer Powder, Inc. | Tapered compressed powder charge for muzzleloader and black powder firearms |
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| CN208093361U (en) * | 2018-04-24 | 2018-11-13 | 石家庄捷尚机械设备有限公司 | A kind of form forming magnetic core mold |
| CN208215601U (en) * | 2018-05-21 | 2018-12-11 | 东莞昱欣电子有限公司 | A kind of high-accuracy powder former punching die frame |
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2020
- 2020-04-03 CN CN202010258896.9A patent/CN111463005B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2866125Y (en) * | 2006-02-15 | 2007-02-07 | 南京东部精密机械有限公司 | Prepressing system for middle and small size dry powder press |
| US20090193994A1 (en) * | 2008-02-01 | 2009-08-06 | American Pioneer Powder, Inc. | Tapered compressed powder charge for muzzleloader and black powder firearms |
| CN102837351A (en) * | 2012-09-26 | 2012-12-26 | 遵义市亿众纳米科技材料有限公司 | Method for preparing microlite panel by using aluminum hydroxide and aluminum powder and device for realizing method |
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| CN106024366A (en) * | 2016-06-21 | 2016-10-12 | 董开 | Primary molding magnetic field molding method and device |
| CN208093361U (en) * | 2018-04-24 | 2018-11-13 | 石家庄捷尚机械设备有限公司 | A kind of form forming magnetic core mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115383116A (en) * | 2022-09-02 | 2022-11-25 | 江西耀润磁电科技有限公司 | Forming and processing equipment and processing method for inductor magnetic core |
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| CN111463005B (en) | 2021-08-24 |
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