CN220420430U - Powder upward punching convex CORE mechanism - Google Patents

Abstract

The utility model belongs to the technical field of inductance processing, and particularly relates to a powder upward stamping convex CORE mechanism, which comprises a supporting component, wherein the supporting component comprises a workbench, a base fixed at the upper end of the workbench, guide rods fixed at four corners of the base of a navigation section of the workbench, and a fixing plate fixed at the top of the guide rods and parallel to the workbench. Meanwhile, the coil is limited, and bad coil leakage at the side surface of the product is avoided. The consistency and the process stability of the product are greatly improved.

Description

Powder upward punching convex CORE mechanism

Technical Field

The utility model belongs to the technical field of inductance processing, and particularly relates to a powder upward punching convex CORE mechanism.

Background

The inductor is an element capable of converting electric energy into magnetic energy and storing the magnetic energy, and plays an important role in a circuit; the process sequence of the small integrated inductor is that firstly, magnetic material powder is filled into a mould cavity to be pre-pressed into a flat core, then an insulating coil is placed above the middle mould flat core, then the magnetic material powder is filled into the mould for the second time, finally, the finished product is formed by stamping and forming, the coil is not centered after the forming due to the fact that the coil cannot be limited in the middle mould (as shown in fig. 14) in the prior art, and serious appearance defect of a leakage coil can occur on the side face of the finished product after the forming. In addition, the magnetic permeability of the inductance magnetic core is related to the forming pressure, and the higher the pressure is, the higher the density of the magnetic core powder material is, the higher the magnetic permeability is, and the inductance value of a finished product is further improved. However, the insulating layer of the coil is easy to be pierced by the powder with too high pressure, so that the short circuit between the layers occurs in the coil, and the use safety risk exists.

To solve the above problem, a powder upward pressing convex CORE mechanism is proposed in the present application.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a powder upward punching convex CORE mechanism, which has the characteristics of improving the processing precision and avoiding the occurrence of short circuit.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a protruding CORE mechanism of powder upwards punching press, includes supporting component, supporting component includes the workstation and fixes the base in the workstation upper end to and fix the guide bar at workstation navigation section base four corners position and fix at the guide bar top and with the parallel fixed plate of workstation, still be connected with the conveyer belt on the supporting component, install well mould subassembly on the base, be equipped with between workstation, the guide bar with well mould subassembly complex undershoot subassembly, be provided with between fixed plate and the guide bar and dash the subassembly, the powder subassembly is filled in still installing at undershoot subassembly top, install demoulding mechanism in the undershoot subassembly.

As a preferable technical scheme of the powder upward stamping convex CORE mechanism, the middle die assembly comprises a movable plate sliding on the upper end of a base through a sliding pin, a middle die holder fixed on the top of the base, an undershoot limiting block arranged on the upper end of the middle die holder, a connecting seat arranged on the upper end of the middle die holder through an undershoot reset spring, a middle die limiting block arranged on the upper surface of the connecting seat, and a middle die reset spring arranged between the movable plate and the connecting seat, wherein the upper end of the middle die holder is fixedly provided with a lower inner punch, the upper end of the connecting seat is fixedly provided with a lower punch, and the top of the movable plate is fixedly provided with a middle die plate.

As a preferable technical scheme of the powder upward punching convex CORE mechanism, the lower punch penetrates through the movable plate and the middle punch, the lower inner punch penetrates through the lower punch, a middle die cavity is formed between the middle punch and the lower punch under the reset action force of the lower punch reset spring and the middle die reset spring, and a lower punch cavity is formed between the lower punch and the lower inner punch.

As a preferable technical scheme of the powder upward punching convex CORE mechanism, the lower punching assembly comprises a supporting sliding rod fixed at the bottom of a workbench, a lower punching cylinder fixed at the telescopic end of the supporting sliding rod, and an upper die cover fixed at the top of the lower punching cylinder and sliding on a guide rod, wherein the center position of the upper die cover is matched with a middle die plate.

As a preferable technical scheme of the powder upward punching convex CORE mechanism, the upper punch assembly comprises a forming cylinder fixed on a fixed plate, a demoulding table fixed at the telescopic end of the forming cylinder, an upper punch plate fixed at the bottom of the demoulding table through a connecting pin, an integrated upper punch formed in the upper punch plate, an upper inner punch positioned in the integrated upper punch, an upper punch cavity formed before the upper inner punch and the integrated upper punch, and an upper punch limiting block fixed at the bottom of the demoulding table.

The powder filling assembly comprises a powder filling metering plate positioned at the top of an upper die cover, a powder falling plate positioned at the upper end of the powder filling metering plate, a powder box bin arranged at the upper end of the powder falling plate, a powder inlet connector connected to the upper end of the powder box bin, a powder box limiting block for arranging the powder filling metering plate, the powder falling plate, the powder box bin and the powder inlet connector on the upper die cover, a powder filling metering hole is further formed in the powder filling metering plate, a powder falling hole is further formed in the powder falling plate as a preferable technical scheme of the powder upward punching convex CORE mechanism, and the demolding mechanism comprises a demolding cylinder fixed on a demolding table and a demolding plate which slides on a guide rod and is connected with the telescopic end of the demolding table, and the bottom of the demolding plate is also fixed with the upper inner punching top.

Compared with the prior art, the utility model has the beneficial effects that: summarizing the defects of the traditional process, the middle mold pre-pressing flat core is changed into the convex core, the center column of the convex core is used as the magnetic core of the coil, so that the magnetic permeability of the magnetic core can be improved before the molding of a finished product, the product inductance characteristic can be met under the condition of low molding pressure, the short circuit risk of the product is avoided, the density of the convex core is uniform, the strength is high, the magnetic permeability of the center column is high, the inductance value of the product meets the requirement, the pressure of the product during molding can be reduced, and the risk of coil short circuit is avoided. Meanwhile, the coil is limited, and bad coil leakage at the side surface of the product is avoided. The consistency and the process stability of the product are greatly improved.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the front view of the present utility model;

FIG. 2 is a schematic view of the structure of FIG. 1 in a partially enlarged manner according to the present utility model;

FIG. 3 is a schematic view of the stamping structure of FIG. 2 according to the present utility model;

FIG. 4 is a schematic view of a half-section of a mold assembly according to the present utility model;

FIG. 5 is a schematic view of the undershoot assembly of the present utility model;

FIG. 6 is a partially exploded view of the upper punch assembly of the present utility model;

FIG. 7 is a schematic exploded view of the powder filling mechanism of the present utility model;

FIG. 8 is a schematic view of a partially enlarged front view of the present utility model after stamping;

FIG. 9 is a partially enlarged schematic illustration of the structure of the portion A of the present utility model;

FIG. 10 is a schematic diagram of the powder filling state according to the present utility model;

FIG. 11 is a schematic view of the structure of the present utility model when a male CORE is stamped;

FIG. 12 is a schematic view of the structure of the present utility model when the mold is released from the mold of FIG. 11;

FIG. 13 is a schematic diagram of an inductance forming step according to the present utility model;

FIG. 14 is a schematic diagram of an inductance forming step in the prior art;

in the figure: 1. a support assembly; 11. a work table; 12. a base; 13. a guide rod; 14. a fixing plate; 2. a conveyor belt; 3. a middle mold assembly; 31. a movable plate; 32. a middle die holder; 33. an undershoot limiting block; 34. undershoot reset spring; 35. a connecting seat; 36. a middle mold limiting block; 37. a middle die return spring; 38. lower inner punching; 39. a lower punch; 310. a middle template; 311. a middle mold cavity; 312. a lower punching cavity; 4. an undershoot assembly; 41. supporting a slide bar; 42. an undershoot cylinder; 43. an upper die cover; 5. an upper punch assembly; 51. a forming cylinder; 52. a demolding table; 53. an upper die plate; 54. integrally punching; 55. upper inner punching; 56. an upper punching cavity; 57. an upper punch limiting block; 6. a powder filling component; 61. powder filling metering plate; 611. filling powder metering holes; 62. a powder falling plate; 621. powder falling holes; 63. a powder box bin; 64. a powder inlet joint; 65. a powder box limiting block; 7. a demoulding mechanism; 71. a demoulding cylinder; 72. removing the template; 8. a powder; 9. a workpiece; 91. a convex CORE; 92. a coil.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-13, the present utility model provides the following technical solutions: the utility model provides a protruding CORE mechanism of powder upwards punching press, including supporting component 1, supporting component 1 includes workstation 11 and fixes the base 12 in workstation 11 upper end, and fix the guide bar 13 at workstation 11 navigation section base 12 four corners position and fix at guide bar 13 top and with the fixed plate 14 of workstation 11 parallel, still be connected with conveyer belt 2 on supporting component 1, install well mould subassembly 3 on the base 12, be equipped with between workstation 11, the guide bar 13 with well mould subassembly 3 complex undershoot subassembly 4, be provided with between fixed plate 14 and the guide bar 13 and dash the subassembly 5, the powder subassembly 6 is still installed at the undershoot subassembly 4 top, install demoulding mechanism 7 in the undershoot subassembly 5.

Specifically, the middle die assembly 3 includes a movable plate 31 sliding on the upper end of the base 12 through a sliding pin, a middle die seat 32 fixed on the top of the base 12, an undershoot limiting block 33 installed on the upper end of the middle die seat 32, a connecting seat 35 installed on the upper end of the middle die seat 32 through an undershoot restoring spring 34, a middle die limiting block 36 installed on the upper surface of the connecting seat 35, and a middle die restoring spring 37 installed between the movable plate 31 and the connecting seat 35, wherein a lower inner punch 38 is fixed on the upper end of the middle die seat 32, a lower punch 39 is fixed on the upper end of the connecting seat 35, a middle die plate 310 is fixed on the top of the movable plate 31, the lower punch 39 penetrates through the movable plate 31 and the middle die plate 310, the lower inner punch 38 penetrates through the lower punch 39, and the middle die plate 310, the lower punch 38 and the lower punch 39 are under the restoring force of the undershoot restoring spring 34 and the middle die restoring spring 37, a middle die cavity 311 is formed between the middle die plate 310 and the lower punch 39, and a lower punch cavity 312 is formed between the lower punch 39 and the lower inner punch 38; the upper punch assembly 5 comprises a forming cylinder 51 fixed on a fixed plate 14, a demoulding table 52 fixed on the telescopic end of the forming cylinder 51, an upper punch plate 53 fixed at the bottom of the demoulding table 52 through a connecting pin, an integral upper punch 54 formed in the upper punch plate 53, an upper inner punch 55 positioned in the integral upper punch 54, an upper punch cavity 56 formed in front of the upper inner punch 55 and the integral upper punch 54, and an upper punch limiting block 57 fixed at the bottom of the demoulding table 52, wherein the forming cylinder drives the integral upper punch and the upper inner punch to move downwards simultaneously during punching in the embodiment, and the elastic capability of a middle die reset spring and a lower punch reset spring is utilized, when the integral upper punch and the middle die are contacted, the force is transmitted, the middle die and the lower punch are firstly subjected to downward movement to limit, then are subjected to punching forming, and the reset spring is utilized to reset after the force is removed, so that continuous action is realized.

Specifically, the undershoot assembly 4 includes a support slide bar 41 fixed at the bottom of the working table 11, an undershoot cylinder 42 fixed at the telescopic end of the support slide bar 41, and an upper die cover 43 fixed at the top of the undershoot cylinder 42 and sliding on the guide bar 13, and the center position of the upper die cover 43 is matched with the middle die plate 310.

Specifically, the powder filling assembly 6 includes a powder filling metering plate 61 located at the top of the upper die cover 43, a powder falling plate 62 located at the upper end of the powder filling metering plate 61, a powder box bin 63 installed at the upper end of the powder falling plate 62, and a powder inlet connector 64 connected to the upper end of the powder box bin 63, and further includes a powder box limiting block 65 for installing the powder filling metering plate 61, the powder falling plate 62, the powder box bin 63 and the powder inlet connector 64 on the upper die cover 43, wherein the powder filling metering plate 61 is further provided with a powder filling metering hole 611, and the powder falling plate 62 is further provided with a powder falling hole 621.

Specifically, the demolding mechanism 7 includes a demolding cylinder 71 fixed on the demolding table 52, and a demolding plate 72 sliding on the guide rod 13 and connected to the telescopic end of the demolding table 52, wherein the bottom of the demolding plate 72 is also fixed to the top of the upper inner punch 55, and in this embodiment, the demolding cylinder provides demolding power to drive the upper inner punch to perform downward demolding.

Specifically, as shown in fig. 10, the magnetic material powder enters the middle mold cavity 311 and the lower punch cavity 312 through the powder filling assembly 6, and the convex CORE91 is formed by punching, and the coil 92 is located outside the convex CORE91 and is positioned by the convex portion, so that the workpiece 9 is finally formed.

The working principle and the using flow of the utility model are as follows:

1. powder feeding in the middle die: the upper die cover is hollowed out, so that the powder falling plate directly contacts with the middle die, and then powder is quantitatively and accurately filled into the cavity of the middle die through controlling the relative positions of the powder filling metering plate and the powder falling plate;

2. the middle die and the undershoot float up and down: the forming cylinder drives the integrated upper punch and the upper inner punch to move downwards simultaneously during punching, and the elastic capability of the middle die reset spring and the lower punch reset spring is utilized, when the integrated upper punch is contacted with the middle die, the force is transferred, the middle die and the lower punch are firstly moved downwards to be limited, then are subjected to punching forming, and the reset spring is utilized to reset after the force is removed, so that continuous action is realized;

3. and forming a convex core upwards in the middle die, namely controlling the thickness of an upper inner punch limiting block to form an upper punch cavity with a fixed height through the upper inner punch limiting block and the upper inner punch position, so as to form a convex core middle column. Controlling the middle die and the undershoot position to form a middle die cavity with fixed height through a middle die limiting block to form a convex core bottom;

4. the density of the convex core finished product is uniform, and the magnetic core permeability meets the requirements: and when the middle die and the undershoot move downwards during stamping, the powder in the undershoot cavity is pushed into the upper die cavity to form a convex core middle column, so that the uniformity of the density of a finished product and the magnetic permeability are ensured to meet the requirements. The thickness of the lower punch limiting block ensures that the lower punch and the lower inner punch are in the same level, and the bottom of the convex core is smooth;

5. and (3) demolding a product: after the convex core is molded, the molding cylinder is lifted and the demoulding cylinder drives the upper inner punch to move downwards, so that the convex core middle column is separated from the upper punch and is left in the middle die;

the forming cylinder drives the upper punch and the upper inner punch to move downwards simultaneously, the middle die and the lower punch move downwards along with the upper inner punch after being contacted with the middle die, powder in the lower punch cavity is pushed into the upper punch cavity to form a convex core middle column, and the powder in the middle die is punched to form the bottom of the convex core. And after the stamping is finished, the forming cylinder returns to the original point, and meanwhile, the demolding cylinder moves downwards to push out the convex core middle column from the upper stamping cavity, so that demolding action is realized. When the upper punch moves upwards, the middle die return spring and the lower punch return spring can push the middle die and the lower punch upwards, so that the convex core is left in the middle die to wait for coil placement.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. The utility model provides a protruding CORE mechanism of powder upwards punching press which characterized in that: including supporting component (1), supporting component (1) include workstation (11) and fix base (12) in workstation (11) upper end to and fix guide bar (13) in workstation (11) navigation section base (12) four corners position and fix at guide bar (13) top and with fixed plate (14) of workstation (11) parallel, still be connected with conveyer belt (2) on supporting component (1), install well mould subassembly (3) on base (12), be equipped with between workstation (11), guide bar (13) with well mould subassembly (3) complex undershoot subassembly (4), be provided with between fixed plate (14) and guide bar (13) and dash subassembly (5), powder filling subassembly (6) are still installed at undershoot subassembly (4) top, install release mechanism (7) in undershoot subassembly (5).

2. A powder up-press male CORE mechanism as claimed in claim 1, wherein: the middle die assembly (3) comprises a movable plate (31) sliding at the upper end of the base (12) through a sliding pin, a middle die seat (32) fixed at the top of the base (12), an undershoot limiting block (33) arranged at the upper end of the middle die seat (32) and a connecting seat (35) arranged at the upper end of the middle die seat (32) through an undershoot return spring (34), and further comprises a middle die limiting block (36) arranged on the upper surface of the connecting seat (35) and a middle die return spring (37) arranged between the movable plate (31) and the connecting seat (35), wherein the upper end of the middle die seat (32) is fixedly provided with a lower inner punch (38), the upper end of the connecting seat (35) is fixedly provided with a lower punch (39), and the top of the movable plate (31) is fixedly provided with a middle die plate (310).

3. A powder up-press male CORE mechanism as claimed in claim 2, wherein: the lower punch (39) penetrates through the movable plate (31) and the middle punch (310), the lower inner punch (38) penetrates through the lower punch (39), and the middle punch (310), the lower inner punch (38) and the lower punch (39) are provided with a middle die cavity (311) in a molding mode between the middle punch (310) and the lower punch (39) under the reset acting force of the lower punch reset spring (34) and the middle die reset spring (37), and the lower punch (312) is provided with a lower punch cavity (312) in a molding mode between the lower punch (39) and the lower inner punch (38).

4. A powder up-press male CORE mechanism as claimed in claim 1, wherein: the lower punch assembly (4) comprises a supporting sliding rod (41) fixed at the bottom of the workbench (11), a lower punch cylinder (42) fixed at the telescopic end of the supporting sliding rod (41), and an upper die cover (43) fixed at the top of the lower punch cylinder (42) and sliding on the guide rod (13), wherein the central position of the upper die cover (43) is matched with the middle die plate (310).

5. A powder up-press male CORE mechanism as claimed in claim 1, wherein: the upper punch assembly (5) comprises a forming cylinder (51) fixed on a fixed plate (14), a demolding table (52) fixed at the telescopic end of the forming cylinder (51), an upper die plate (53) fixed at the bottom of the demolding table (52) through a connecting pin, an integral upper punch (54) formed in the upper die plate (53), an upper inner punch (55) positioned in the integral upper punch (54) and an upper punch cavity (56) formed before the upper inner punch (55) and the integral upper punch (54), and an upper punch limiting block (57) fixed at the bottom of the demolding table (52).

6. A powder up-press male CORE mechanism as claimed in claim 1, wherein: the powder filling assembly (6) comprises a powder filling metering plate (61) positioned at the top of the upper die cover (43), a powder falling plate (62) positioned at the upper end of the powder filling metering plate (61), a powder box bin (63) arranged at the upper end of the powder falling plate (62) and a powder feeding connector (64) connected to the upper end of the powder box bin (63), and further comprises a powder box limiting block (65) for installing the powder filling metering plate (61), the powder falling plate (62), the powder box bin (63) and the powder feeding connector (64) on the upper die cover (43), wherein the powder filling metering plate (61) is further provided with a powder filling metering hole (611), and the powder falling plate (62) is further provided with a powder falling hole (621).

7. A powder up-press male CORE mechanism as claimed in claim 1, wherein: the demolding mechanism (7) comprises a demolding cylinder (71) fixed on the demolding table (52) and a demolding plate (72) which slides on the guide rod (13) and is connected with the telescopic end of the demolding table (52), and the bottom of the demolding plate (72) is also fixed with the top of the upper inner punch (55).