CN120089513B

CN120089513B - A molding equipment and process for iron-silicon-aluminum magnetic powder cores

Info

Publication number: CN120089513B
Application number: CN202510541335.2A
Authority: CN
Inventors: 贾义勇; 王世辉; 陆添翼; 杨大勇; 江沐风
Original assignee: Langfeng New Materials Inner Mongolia Co ltd; Longfeng New Materials Heze Co ltd
Current assignee: Langfeng New Materials Inner Mongolia Co ltd; Longfeng New Materials Heze Co ltd
Priority date: 2025-04-28
Filing date: 2025-04-28
Publication date: 2025-10-31
Anticipated expiration: 2045-04-28
Also published as: CN120089513A

Abstract

The invention relates to a device and a process for forming a sendust magnetic powder core, wherein the device comprises a fixed plate, a supporting plate is arranged above the fixed plate through a spring rod, and a mounting plate and a sliding plate are sequentially arranged above the supporting plate. The fixed plate is provided with an extrusion device, and the extrusion device comprises an extrusion mechanism and a vibration mechanism. The invention can solve the following problems in the process of molding the sendust materials in the prior art by arranging the vibration mechanism, wherein before the sendust powder is extruded and molded, the inside and outside of the sendust powder are leveled through vibration, so that the uniformity of particle distribution of the sendust powder is greatly improved, and secondly, by arranging a plurality of groups of die rings which are matched with the extrusion device, the sendust powder of the die rings can be extruded and molded at the same time, and compared with the traditional single-piece production mode only using a single die, the die rings can extrude a plurality of magnetic powder blanks at the same time, so that the whole production period is greatly shortened.

Description

Iron-silicon-aluminum magnetic powder core forming equipment and process thereof

Technical Field

The invention relates to the field of sendust material forming devices, in particular to sendust magnetic powder core forming equipment and a sendust magnetic powder core forming process.

Background

The Fe-Si-Al magnetic powder core is made of ‌% of iron, 9% of silicon and 6% of aluminum ‌ alloy powder, and a distributed air gap structure soft magnetic material is formed through insulating coating, compression molding and other processes. Small amounts of other elements such as zirconium, niobium, etc. are also typically added to improve the properties of the material. The microstructure is composed of fine magnetic particles which are surrounded by an insulating layer to reduce eddy current losses.

The performance of the sendust powder core as a key soft magnetic material for high frequency power electronics is highly dependent on the powder filling uniformity prior to press forming. The vibration leveling process aims to eliminate powder stacking gaps and improve consistency of filling density through mechanical vibration, so that permeability stability and high-frequency loss characteristics of the magnetic powder core are improved. However, the traditional vibration leveling device can only locally vibrate the surface layer of the powder in the die, and the iron silicon aluminum powder has poor fluidity and high inter-particle friction coefficient, so that the inner layer powder is difficult to realize fluidization movement, the vibration energy is unevenly distributed, and the leveling effect difference between the inner layer and the outer layer is large.

In the prior art, as disclosed in the patent with publication number CN119489190a, a device for forming iron-silicon material and a method for using the same are disclosed, which uses a mode of setting a compacting mechanism, a forming mechanism, a pushing mechanism and a vibrating mechanism in cooperation, so as to facilitate vibration compaction of powder entering a die cavity of a die, reduce the uneven texture of a pressed parison, enable the parison to be compressed bidirectionally, and improve the convenience of blanking the compacted parison.

However, while this technique improves some of the original problems, there are still aspects that require further optimization to better meet the actual detection needs.

1. Before the powder in the die cavity is compacted, the device is vibrated and leveled through the vibration mechanism, so that the compaction mechanism is convenient to be used for carrying out compaction treatment subsequently, however, gaps exist in the powder possibly caused by external vibration, and the powder cannot be fully filled in all corners and fine gaps of the die cavity. Because the powder has uneven particle size and different shapes, larger particles can displace due to vibration inertia in the vibration process, gaps are formed at the original positions of the larger particles, and fine particles are difficult to completely fill the gaps in the limited vibration time.

2. The device only uses a single die to press and shape the raw materials, and can directly act on each workpiece in a single-piece production mode, so that the quality difference between different workpieces is obvious. To realize batch consistency control, each influencing factor needs to be accurately controlled, however, because the factors are interwoven and have complex influence, the difficulty of batch consistency control is obviously greatly increased, and the whole batch of products can be difficult to reach the uniform high-quality standard.

Therefore, under the above stated viewpoints, there is still room for optimizing the iron-silicon material molding apparatus and the method of using the same in the prior art. The vibration compaction effect of the powder in the die can be improved, a plurality of workpieces can be manufactured at one time, and the manufacturing yield ‌ is improved.

Disclosure of Invention

In order to solve the problems, the invention provides a device and a process for forming the sendust core.

In one aspect, a sendust magnetic powder core former includes the fixed plate, and the fixed plate top is provided with the backup pad through the spring beam, and the backup pad top has set gradually mounting panel and slide.

The fixed plate is provided with an extrusion device, and the extrusion device comprises an extrusion mechanism and a vibration mechanism.

The extrusion mechanism comprises a working groove formed in the mounting plate, a plurality of groups of die rings are arranged in the working groove at equal intervals, a plurality of extrusion columns are arranged on the sliding plate at equal intervals, and extrusion rings are sleeved on the extrusion columns in a sliding manner.

The vibration mechanism comprises a rotating shaft which is arranged inside the extrusion column in a rotating way, an extension groove is formed inside the extrusion column, the rotating shaft is rotatably arranged inside the extension groove, extension blocks are arranged on the rotating shaft along the axis of the rotating shaft at equal intervals, a plurality of groups of extension blocks are arranged on the extension blocks, and a plurality of fixing blocks corresponding to the extension blocks are arranged on the inner wall of the extension groove along the axis of the extension groove at equal intervals.

Preferably, the extension block is of a spring telescopic structure, and one end of the extension block opposite to the fixed block is provided with a matched abutting inclined plane.

Preferably, the vibration mechanism further comprises a vibration block, the vibration block is arranged in the working groove in a sliding mode, the vibration blocks are connected through connecting rods, and the connecting rods are connected with the inner wall of the working groove through springs.

Preferably, the vibration mechanism further comprises a plurality of driving grooves penetrating through the connecting rod, a plurality of triangular blocks are mounted inside the driving grooves at equal intervals along the height direction of the driving grooves, L-shaped mounting rods are arranged on the sliding plates, and one ends of the mounting rods, which are shorter, are in movable fit with the triangular blocks.

Preferably, a fixed ring is further installed above the extrusion ring on the extrusion column, a pushing motor is embedded in the fixed ring, a first screw rod is connected to an output shaft of the pushing motor, and the extrusion ring is in threaded connection with the first screw rod.

Preferably, the pushing motors at four corners of the mounting plate are double-shaft motors, a second screw rod is arranged on an output shaft of the pushing motors, which is close to the sliding plate, and is rotationally connected with the fixed ring, the second screw rod penetrates through the fixed ring to be in threaded connection with the synchronous rod, a square pushing ring is arranged above the mounting plate and is connected with the synchronous rods, and the pushing ring is in sliding contact with the mounting plate and is movably abutted to the supporting plate.

Preferably, the fixing plate is further provided with a fixing piece for fixing the supporting plate, the fixing piece comprises an inserting block, the inserting block is arranged in a sliding mode through the supporting rod, the inserting block is of a spring telescopic structure, and the supporting plate is provided with an inserting groove which is movably inserted into the inserting block.

Preferably, the driving screws are symmetrically arranged on the fixing plate along the width direction of the fixing plate, push rods are arranged on the two driving screws in a threaded mode, a conveying belt is arranged on one side of the length direction of the fixing plate, and the lower bottom surface of each push rod is in sliding contact with the upper bottom surface of the supporting plate.

Preferably, the supporting rod is provided with a matching block along the height direction, the matching block is of a spring telescopic structure, and one side, opposite to the pushing rod, of the matching block is provided with a matched abutting inclined plane.

In another aspect, a process for forming a sendust core, the process comprising the steps of:

S1, conveying powder, namely conveying the Fe-Si-Al magnetic powder into a die ring;

S2, vibrating the powder, namely vibrating and leveling the ferrosilicon aluminum magnetic powder through knocking an extrusion column and a die ring;

S3, extrusion molding, namely, an extrusion column and an extrusion ring are matched with the die ring, and the sendust powder in the die ring is extruded and molded through extrusion of the extrusion column and the extrusion ring;

S4, demolding and collecting, namely pushing the sendust powder cores in the die rings to drop onto the supporting plate for uniform collection after extrusion molding;

S5, uniformly collecting, namely pushing the sendust cores on the supporting plate to be close to the conveying belt by utilizing the push rod, and uniformly conveying and collecting the sendust cores through the conveying belt.

In summary, the present application includes at least one of the following beneficial technical effects:

1. According to the invention, the vibration mechanism is arranged, before the sendust powder is extruded and formed, the inside and outside of the sendust powder are leveled through vibration, and the uniformity of the sendust powder particle distribution is greatly improved. After the particles are uniformly distributed, the pressure applied to each part can be more uniformly transferred and distributed in the subsequent extrusion forming process. This avoids the problem of partial region pressure shortage due to partial region pressure concentration caused by uneven distribution of magnetic powder particles.

2. The invention can simultaneously extrude and shape the iron silicon aluminum magnetic powder of the plurality of die rings by arranging the plurality of die rings to be matched with the extrusion device, compared with the traditional single-piece production mode which only uses a single die, the plurality of die rings can extrude a plurality of magnetic powder blanks at the same time, thereby greatly shortening the whole production period, effectively reducing the quality problem caused by individual difference, ensuring the stable quality of the whole batch of products, conforming to the unified high quality standard and improving the public praise and market competitiveness of the products of enterprises.

Drawings

The invention will be further described with reference to the drawings and examples.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the structure of the fixing plate of the present invention.

Fig. 3 is a schematic view of the structure of the pressing mechanism of the present invention.

Fig. 4 is a schematic diagram of the structure of fig. 3a according to the present invention.

Fig. 5 is a schematic view of the structure of the mounting plate of the present invention.

Fig. 6 is a schematic diagram of the structure of the present invention at B in fig. 5.

FIG. 7 is a schematic view of the structure of the inside of the extrusion column of the present invention.

Fig. 8 is a schematic view of a structure for pushing the support plate to move according to the present invention.

FIG. 9 is a schematic view of the structure of the inside of the extrusion ring and the fixing ring of the present invention.

Fig. 10 is a schematic view showing a structure of fixing a support plate according to the present invention.

Fig. 11 is a schematic structural view of the fixing member of the present invention.

Fig. 12 is a schematic diagram of the structure of the feeding of the present invention.

FIG. 13 is a schematic view of the structure of the present invention for controlling the rotation of the output tube.

In the figure, 1, a fixed plate, 10, a supporting plate, 11, a mounting plate, 12, a sliding plate, 2, a squeezing device, 20, a squeezing mechanism, 200, a working groove, 201, a mould ring, 202, a squeezing column, 203, a squeezing ring, 21, a vibrating mechanism, 210, a rotating shaft, 211, an extension groove, 212, an extension block, 213, a fixed block, 214, a vibrating block, 215, a connecting rod, 216, a driving groove, 217, a triangular block, 218, a mounting rod, 30, a fixed ring, 31, a pushing motor, 32, a first screw rod, 40, a second screw rod, 41, a synchronous rod, 42, a pushing ring, 5, a fixing piece, 50, an inserting block, 51, an inserting groove, 60, a driving screw rod, 61, a pushing rod, 62, a conveying belt, 70, a matching block, 80, a supporting plate, 81, an output pipe, 82 and a driving block.

Detailed Description

Embodiments of the present invention are described in detail below with reference to fig. 1 to 13.

The embodiment of the application discloses a sendust powder core forming device and a process thereof, which are mainly applied to the forming process of sendust materials, and can be used for leveling sendust powder entering a die through vibration before the sendust powder core is pressed and formed in technical effect, and the vibration of the die and a pressing piece is utilized to improve the vibration effect compared with the traditional external vibration, so that gaps are not generated between sendust powder and the quality of the subsequent sendust powder core pressing and forming is ensured, and a plurality of sendust powder cores can be synchronously manufactured, so that the yield of a single batch is improved, the process parameters are more stable under the same batch production condition, the performance difference among batches is reduced, and the consistency ‌ of key characteristics such as high saturation magnetic flux density, low loss and the like of the powder cores is ensured.

Embodiment one:

referring to fig. 1, 2, 3 and 7, an sendust core forming apparatus includes a fixing plate 1, a support plate 10 is provided above the fixing plate 1 through a spring rod, and a mounting plate 11 and a sliding plate 12 are sequentially provided above the support plate 10.

The fixing plate 1 is provided with a pressing device 2, and the pressing device 2 includes a pressing mechanism 20 and a vibrating mechanism 21. The sendust powder is compression molded by means of extrusion molding, and gaps between sendust powder are removed by the vibration mechanism 21 before compression.

The extruding mechanism 20 comprises a working groove 200 formed in a mounting plate 11, a plurality of groups of die rings 201 are equidistantly arranged in the working groove 200, guide grooves corresponding to the die rings 201 are formed in the bottom of the mounting plate 11, the bottom surface of the mounting plate 11 is movably abutted against the upper surface of a supporting plate 10, under an initial state, the bottom surface of the mounting plate 11 is always abutted against the upper surface of the supporting plate 10, sendust powder can be conveyed into the die rings 201 and falls onto the supporting plate 10 through the guide grooves, a plurality of extruding columns 202 are equidistantly arranged on a sliding plate 12, and extruding rings 203 are sleeved on the extruding columns 202 in a sliding manner. The fixing plate 1 is provided with a mounting frame, the mounting frame is provided with a cylinder, the telescopic end of the cylinder is connected with the sliding plate 12, the cylinder controls the lifting of the sliding plate 12 to drive the extrusion column 202 and the extrusion ring 203 to descend, the extrusion column 202 and the extrusion ring 203 are matched with the die ring 201, the sendust powder in the die ring 201 is extruded and molded through extrusion of the extrusion column 202 and the extrusion ring 203, and the extruded sendust powder core is annular.

The vibration mechanism 21 comprises a rotating shaft 210 rotatably arranged in the extrusion column 202, an extension groove 211 is formed in the extrusion column 202, the rotating shaft 210 is rotatably arranged in the extension groove 211, extension blocks 212 are arranged on the rotating shaft 210 along the axis of the rotating shaft at equal intervals, a plurality of groups of extension blocks 212 are arranged on the rotating shaft 210, and a plurality of fixing blocks 213 corresponding to the extension blocks 212 are arranged on the inner wall of the extension groove 211 along the axis of the extending block at equal intervals.

The extension block 212 is a spring telescopic structure, and one end of the extension block 212 opposite to the fixed block 213 is provided with a matched abutting inclined surface.

According to the invention, the rotation of the rotating shaft 210 is controlled by external driving, when the rotating shaft 210 rotates, the extension block 212 on the rotating shaft 210 synchronously follows the rotation, when the inclined surface on the extension block 212 contacts with the inclined surface on the fixed block 213, the fixed block 213 reversely drives the extension block 212 to shrink, when the extension block 212 continuously rotates, the extension block 212 loses the limitation of the fixed block 213, the extension block 212 instantaneously stretches under the acting force of a spring, the telescopic end of the extension block 212 instantaneously contacts with the inner wall of the extrusion column 202, the effect of driving the extrusion column 202 to vibrate is achieved, and during the descending process of the extrusion column 202, the iron silicon aluminum magnetic powder in the die ring 201 is vibrated and leveled by the vibration of the extrusion column 202.

Referring to fig. 4, 5 and 6, namely, a schematic structural diagram of driving the mold ring 201 to vibrate and level the sendust powder further, specifically, the vibration mechanism 21 further includes a vibration block 214, the vibration block 214 is slidably disposed in the working groove 200, the vibration blocks 214 are connected through a connecting rod 215, and the connecting rod 215 is connected with the inner wall of the working groove 200 through a spring.

Through the inside slip of control connecting rod 215 in working tank 200, take vibrating piece 214 to slide in working tank 200, can constantly strike mould ring 201 when vibrating piece 214 slides, make mould ring 201 vibrate through striking, further improve the flattening efficiency of sendust magnetic powder.

Through the synchronous cooperation of extension piece 212 and vibrating piece 214, before to sendust compression moulding, all level sendust through the vibration to inside and outside sendust, improve sendust particle distribution's homogeneity, guarantee sendust core's preparation quality.

Referring to fig. 4, 5 and 6, which are schematic structural views of the control link 215 sliding in the working groove 200, the vibration mechanism 21 further includes a plurality of driving grooves 216 penetrating through the connecting link 215, a plurality of triangular blocks 217 are equidistantly installed in the driving grooves 216 along the height direction thereof, an L-shaped mounting rod 218 is provided on the slide plate 12, and a shorter end of the mounting rod 218 is movably engaged with the triangular blocks 217.

During the descending process of the slide plate 12, the mounting rod 218 on the slide plate 12 gradually approaches the triangular block 217 in the driving groove 216, when the shorter end of the mounting plate 11 contacts the triangular block 217, the mounting rod 218 presses the triangular block 217 to force the triangular block 217 to slide, and then the connecting rod 215 is forced to slide, when the mounting rod 218 enters a gap between two adjacent triangular blocks 217, the triangular block 217 loses the extrusion force of the connecting rod 215, the connecting rod 215 also loses the extrusion force at the moment, the connecting rod 215 returns to the initial state under the action of a spring, and during the sliding process, the vibrating block 214 on the mounting rod 218 knocks the die ring 201 under the action of the spring.

By installing a plurality of triangular blocks 217 in the driving groove 216, the vibrating blocks 214 on the connecting rod 215 are forced to strike the mold ring 201 for a plurality of times by utilizing the cooperation of the triangular blocks 217 and the installation rods 218, and the sendust powder in the mold ring 201 is leveled by vibration.

Referring to fig. 8 and 9, a schematic structure diagram of blanking a molded sendust core is shown, specifically, a fixed ring 30 is further installed above an extrusion ring 203 on an extrusion column 202, a pushing motor 31 is embedded in the fixed ring 30, a first screw 32 is connected to an output shaft of the pushing motor 31, and the extrusion ring 203 is in threaded connection with the first screw 32.

After the sendust core is extruded, the sendust core needs to be pushed out of the mold ring 201 for uniform collection.

Through pushing motor 31, control screw one 32 rotates, and extrusion ring 203 that this moment can be followed the direction of extrusion post 202 and is moved to backup pad 10 under the drive of screw one 32, and in this process, extrusion ring 203 can promote the direction removal of the interior sendust magnetic powder core of mould ring 201 to backup pad 10, and the sendust magnetic powder core of being released mould ring 201 can drop to backup pad 10 and unify the collection.

Referring to fig. 8 and 9, namely, a schematic structural diagram for controlling the support plate 10to descend is shown, specifically, a pushing motor 31 at four corners of the mounting plate 11 is a double-shaft motor, a second screw 40 is arranged on an output shaft of the pushing motor 31, which is close to the sliding plate 12, the second screw 40 is rotationally connected with the fixed ring 30, the second screw 40 is connected with a synchronizing rod 41 through the fixed ring 30 in a threaded manner, a square pushing ring 42 is arranged above the mounting plate 11, the pushing ring 42 is connected with a plurality of synchronizing rods 41, and the pushing ring 42 is in sliding contact with the mounting plate 11 and is in movable contact with the support plate 10.

Because the sendust core needs to be pushed out of the mold ring 201 and placed on the supporting plate 10, the supporting plate 10 is driven to synchronously descend in the descending process of the sendust core, so that the supporting plate 10 is prevented from moving, and the descending of the sendust core is blocked.

In the process that the sendust magnetic powder core is pushed out, the pushing motors 31 at four corners of the mounting plate 11 synchronously drive the screw rods II 40 to rotate, at the moment, the synchronizing rod 41 in threaded connection with the screw rods II 40 can descend under the driving of the screw rods II 40, in the descending process of the synchronizing rod 41, the pushing ring 42 is driven to descend, the pushing ring 42 pushes the support plate 10 and the sendust magnetic powder core to synchronously move until the sendust magnetic powder core is completely pushed out by the die ring 201, and the sendust magnetic powder core can be placed on the support plate 10 to wait for subsequent unified collection.

Referring to fig. 10 and 11, that is, a schematic structural diagram of fixing the support plate 10 after the support plate 10 descends, specifically, a fixing piece 5 for fixing the support plate 10 is further provided on the fixing plate 1, the fixing piece 5 includes an insert block 50, the insert block 50 is slidably disposed through a support rod, the insert block 50 is of a spring telescopic structure, and an insert groove movably inserted into the insert block 50 is provided on the support plate 10.

When the supporting plate 10 descends, the inserting grooves on the supporting plate 10 gradually approach the inserting blocks 50, the inserting blocks 50 shrink under the extrusion action of the supporting plate 10, and when the inserting blocks 50 correspond to the inserting grooves, the inserting blocks 50 are inserted into the inserting grooves under the action of the springs to fix the supporting plate 10.

The extrusion ring 203 at this time returns to the initial position under the action of the pushing motor 31, and the pushing ring 42 also rises synchronously, so that the supporting plate 10 is not interfered any more, and the supporting plate 10 is also fixed under the cooperation of the inserting block 50 and the inserting groove, so that the follow-up collection of the sendust cores on the supporting plate 10 is facilitated.

Referring to fig. 10 and 11, which are schematic diagrams of a structure for uniformly collecting sendust cores on a support plate 10, specifically, driving screws 60 are symmetrically installed on a fixing plate 1 along the width direction of the fixing plate, push rods 61 are arranged on the two driving screws 60 in a threaded manner, a conveying belt 62 is arranged on one side of the fixing plate 1 in the length direction, and the lower bottom surface of the push rods 61 is in sliding contact with the upper bottom surface of the support plate 10.

The driving screw 60 is controlled to rotate by external driving, at this time, the push rod 61 on the driving screw 60 gradually approaches the supporting plate 10 under the action of the driving screw 60, slides on the supporting plate 10, pushes the sendust powder core on the supporting plate 10 to approach the conveying belt 62, and is conveyed and collected uniformly through the conveying belt 62 after moving to the conveying belt 62.

Referring to fig. 10 and 11, which are schematic structural views of the support plate 10 for controlling the support plate to return to an initial state, specifically, a matching block 70 is provided on the support plate along the height direction thereof, the matching block 70 is of a spring telescopic structure, and a side of the matching block 70 opposite to the push rod 61 is provided with a matched abutting inclined surface.

When the push rod 61 approaches the conveyer belt 62, the inclined surface on the push rod 61 can press the matching block 70 to drive the matching block 70 to stretch, after the push rod 61 continuously moves, the matching block 70 loses the extrusion force of the push rod 61 to restore to an elongation state, when the push rod 61 is far away from the conveyer belt 62, the push rod 61 can be matched with the straight surface of the matching block 70 to drive the matching block 70 to integrally slide, the inserting block 50 can be driven to synchronously slide at the moment, the matching of the inserting block 50 with the inserting groove is driven to be canceled, the supporting plate 10 returns to the initial height under the action of the spring rod, and the supporting plate is contacted with the mounting plate 11 again.

Embodiment two:

Referring to fig. 4, in order to ensure that the sendust can accurately enter the mold ring 201, in accordance with the first embodiment;

Referring to fig. 12 and 13, that is, a schematic structural diagram of pouring sendust into the mold ring 201 is shown, specifically, a support plate 80 is further provided on the mounting frame above the slide plate 12, a plurality of output pipes 81 corresponding to the mold ring 201 are rotatably provided on the support plate 80, a plurality of through slots corresponding to the output pipes 81 are provided on the slide plate 12, and the output pipes 81 pass through the through slots and are provided with discharge pipes.

Spiral grooves are formed in the inner walls of the through grooves, and driving blocks 82 matched with the spiral grooves are mounted on the outer walls of the output pipes 81.

The sendust enters the discharge pipe through the output pipe 81, and is then conveyed into the die ring 201 by the discharge pipe for the next extrusion forming operation.

Wherein, the discharging pipe is the form of buckling, guarantees that the discharge port of discharging pipe can aim at the inside of mould ring 201.

In the process of descending the slide plate 12, the spiral groove on the penetrating groove on the slide plate 12 can drive the output pipe 81 to rotate so as to drive the discharge pipe to rotate, so that the discharge end on the discharge pipe deflects, and the extrusion column 202 is prevented from colliding with the discharge pipe in the descending process.

In addition, the invention also provides a molding process of the sendust powder core, which comprises the following steps:

s1, the Fe-Si-Al magnetic powder enters the discharging pipe through the output pipe 81 and is conveyed into the die ring 201 through the discharging pipe,

S2, lifting the cylinder control slide plate 12 brings the extrusion column 202 and the extrusion ring 203 to descend, in the descending process, the rotating shaft 210 in the extrusion column 202 rotates, the extending block 212 on the rotating shaft 210 drives the extrusion column 202 to vibrate under the action of the fixing block 213, the sendust magnetic powder in the die ring 201 is vibrated and leveled, and synchronously, the mounting rod 218 on the slide plate 12 is matched with the triangular block 217 in the descending process of the slide plate 12, and the vibrating block 214 on the mounting rod 218 is forced to knock the die ring 201.

S3, the extrusion column 202 and the extrusion ring 203 are matched with the die ring 201, and the sendust powder in the die ring 201 is extruded and molded through extrusion of the extrusion column 202 and the extrusion ring 203.

S4, after extrusion molding, the first screw rod 32 is controlled to rotate through the pushing motor 31, so that the extrusion ring 203 is driven to push the sendust core in the die ring 201 to move towards the direction of the supporting plate 10, and the sendust core pushed out of the die ring 201 can fall onto the supporting plate 10 to be collected uniformly.

S5, synchronously, the pushing motors 31 at four corners of the mounting plate 11 synchronously rotate the second screws 40, the second screws 40 drive the synchronizing rods 41 to descend and drive the push rings 42 to descend, and the push rings 42 push the support plate 10 and the sendust cores to synchronously move until the sendust cores are completely pushed out of the die ring 201, and the sendust cores are placed on the support plate 10.

S6, when the supporting plate 10 descends, the inserting grooves in the supporting plate 10 gradually approach the inserting blocks 50, the inserting blocks 50 shrink under the extrusion action of the supporting plate 10, and when the inserting blocks 50 correspond to the inserting grooves, the inserting blocks 50 are inserted into the inserting grooves under the action force of the springs to fix the supporting plate 10.

S7, controlling the driving screw 60 to rotate by utilizing external driving, wherein the push rod 61 on the driving screw 60 gradually approaches the supporting plate 10 under the action of the driving screw 60, slides on the supporting plate 10, pushes the sendust core on the supporting plate 10 to approach the conveying belt 62, and uniformly conveys and collects the sendust core through the conveying belt 62 after the sendust core moves onto the conveying belt 62.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the embodiments are to be considered in all respects as illustrative and not restrictive.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A molding equipment for iron-silicon-aluminum magnetic powder cores, comprising a fixing plate (1), characterized in that:

A support plate (10) is provided above the fixed plate (1) via a spring rod, and an mounting plate (11) and a sliding plate (12) are arranged above the support plate (10) in sequence.

A pressing device (2) is provided on the fixed plate (1). The pressing device (2) includes a pressing mechanism (20) and a vibration mechanism (21).

The extrusion mechanism (20) includes a working groove (200) opened on the mounting plate (11), a number of mold rings (201) are equidistantly arranged inside the working groove (200), and a number of extrusion columns (202) are equidistantly installed on the slide plate (12), and an extrusion ring (203) is slidably sleeved on the extrusion column (202).

The vibration mechanism (21) includes a rotating shaft (210) rotatably disposed inside the extrusion column (202). An extension groove (211) is provided inside the extrusion column (202). The rotating shaft (210) is rotatably mounted inside the extension groove (211). Extension blocks (212) are equidistantly disposed on the rotating shaft (210) along its axis. Multiple sets of extension blocks (212) are provided. Multiple fixing blocks (213) corresponding to the extension blocks (212) are equidistantly disposed on the inner wall of the extension groove (211) along its axis.

The vibration mechanism (21) also includes a vibration block (214), which is slidably disposed in the working groove (200). Multiple vibration blocks (214) are connected to each other by a connecting rod (215), and the connecting rod (215) is connected to the inner wall of the working groove (200) by a spring.

The vibration mechanism (21) also includes multiple drive slots (216) that pass through the connecting rod (215). Multiple triangular blocks (217) are installed at equal intervals along the height direction inside the drive slots (216). An L-shaped mounting rod (218) is provided on the slide plate (12). The shorter end of the mounting rod (218) is in movable cooperation with the triangular block (217).

2. The iron-silicon-aluminum magnetic powder core forming equipment according to claim 1, characterized in that: the extension block (212) is a spring telescopic structure, and the end of the extension block (212) opposite to the fixed block (213) is set as a matching abutting inclined surface.

3. The iron-silicon-aluminum magnetic powder core forming equipment according to claim 1, characterized in that: a fixing ring (30) is also installed on the extrusion column (202) above the extrusion ring (203), a pusher motor (31) is embedded inside the fixing ring (30), a screw (32) is connected to the output shaft of the pusher motor (31), and the extrusion ring (203) is threadedly connected to the screw (32).

4. The iron-silicon-aluminum magnetic powder core forming equipment according to claim 1, characterized in that: the pusher motors (31) at the four corners of the mounting plate (11) are dual-shaft motors, and a screw second (40) is provided on one output shaft of the pusher motor (31) near the slide plate (12). The screw second (40) is rotatably connected to the fixed ring (30). The screw second (40) passes through the fixed ring (30) and is threadedly connected to the synchronous rod (41). A square push ring (42) is provided above the mounting plate (11). The push ring (42) is connected to multiple synchronous rods (41). The push ring (42) slides in contact with the mounting plate (11) and moves against the support plate (10).

5. The iron-silicon-aluminum magnetic powder core forming equipment according to claim 1, characterized in that: a fixing member (5) for fixing the support plate (10) is also provided on the fixing plate (1), the fixing member (5) includes a plug (50), the plug (50) is slidably set by the support rod, and the plug (50) is a spring telescopic structure, and the support plate (10) is provided with a plug groove for movably plugging into the plug (50).

6. The iron-silicon-aluminum magnetic powder core forming equipment according to claim 1, characterized in that: a drive screw (60) is symmetrically installed on the fixed plate (1) along its width direction, a push rod (61) is provided on the two drive screws (60) with a common thread, a conveyor belt (62) is provided on one side of the fixed plate (1) in the length direction, and the lower bottom surface of the push rod (61) slides in contact with the upper bottom surface of the support plate (10).

7. The iron-silicon-aluminum magnetic powder core forming equipment according to claim 1, characterized in that: a mating block (70) is provided on the support rod along its height direction, the mating block (70) is a spring telescopic structure, and the side of the mating block (70) opposite to the push rod (61) is provided as a mating abutment slope.

8. A process for forming an iron-silicon-aluminum magnetic powder core, using an iron-silicon-aluminum magnetic powder core forming device as described in any one of claims 1-7, characterized in that the forming process includes the following steps:

S1, Powder conveying: conveying iron-silicon-aluminum magnetic powder to the mold ring (201);

S2, Powder Vibration: The iron-silicon-aluminum magnetic powder is vibrated and leveled by striking the extrusion column (202) and the mold ring (201);

S3, Extrusion molding: The extrusion column (202) and the extrusion ring (203) will cooperate with the mold ring (201). Through the extrusion of the extrusion column (202) and the extrusion ring (203), the iron-silicon-aluminum magnetic powder in the mold ring (201) will be extruded into shape.

S4. Demolding and collection: After extrusion molding, push the iron-silicon-aluminum magnetic powder core in the mold ring (201) to fall onto the support plate (10) for unified collection;

S5. Unified collection: The iron-silicon-aluminum magnetic powder core on the support plate (10) is pushed close to the conveyor belt (62) by the push rod (61) and then uniformly transported and collected by the conveyor belt (62).