Inductor forming device

Abstract

The utility model relates to an inductor forming device which comprises an integrated inductor forming die and a powder feeder, the integrated inductor forming die is formed by combining an upper die assembly, a lower die assembly, an upper stripper plate and a middle die containing multi-size die cavities, and the powder feeder comprises a first powder filling plate and a second powder filling plate which are matched with the middle die containing the multi-size die cavities. The upper die assembly comprises an upper stamping die body, an upper base plate and an upper die base, the upper stamping die body is formed by combining an upper stamping fixing plate and an upper punch, the upper punch comprises a first upper punch body and a second upper punch body, and the lower die assembly comprises a lower stamping die body, a lower base plate and a lower die base. The utility model has the beneficial effects that the whole device can meet the requirements of fast sample feeding and sample testing of inductors of various sizes, so that products of various sizes share one set of mold, the cost is saved, the time for producing and replacing the mold is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor manufacturing technology, and specifically to an inductor forming device. Background Technology

[0002] An inductor, also known as a reactor or choke, is an electronic component that measures and stores inductance. With the development of the semiconductor industry, inductors, as an important semiconductor device, are evolving towards integration and faster processing.

[0003] In existing technologies, when producing product molds, a single mold can only produce products of one size, which is quite limiting and costly. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an inductor forming device. By designing mold cavities of different sizes, powder filling plates corresponding to different sizes of products for different mold cavity positions, and upper and lower punches of different sizes corresponding to different mold cavity sizes, when switching machine types, only the powder filling plates of different size series need to be replaced. This allows the integrated inductor forming mold to meet the needs of rapid sample delivery and sample testing of inductors of various sizes, enabling multiple size series of products to share a single mold, saving costs, reducing production mold changeover time, and improving production efficiency.

[0005] This utility model provides the following technical solution: an inductor forming device, comprising: an integrated inductor forming mold and a powder feeder. The integrated inductor forming mold is composed of an upper mold assembly, a lower mold assembly, an upper stripper plate, and a middle mold containing cavities of multiple sizes. The powder feeder includes a first powder filling plate and a second powder filling plate adapted to the middle mold containing cavities of multiple sizes. The upper mold assembly includes an upper stamping mold body, an upper pad plate, and an upper mold base. The upper stamping mold body is composed of an upper punch fixing plate and an upper punch. The upper punch includes a first upper punch body and a second upper punch body. The lower mold assembly includes a lower stamping mold body, a lower pad plate, and a lower mold base. The lower stamping mold body is composed of a lower punch fixing plate and a lower punch. The lower punch includes a first lower punch body and a second lower punch body.

[0006] As a preferred embodiment of this utility model, the first upper punch body and the first lower punch body, the second upper punch body and the second lower punch body are all symmetrically distributed vertically, and the first upper punch body and the second upper punch body, the first lower punch body and the second lower punch body are all arranged in parallel.

[0007] As a preferred embodiment of this utility model, the upper punch is fixedly installed at the bottom of the upper die holder by the upper punch fixing plate, and the upper pad is fixedly installed between the upper punch fixing plate and the upper die holder. The lower punch is fixedly installed at the top of the lower die holder by the lower punch fixing plate, and the lower pad is fixedly installed between the lower punch fixing plate and the lower die holder.

[0008] As a preferred embodiment of this utility model, the upper ejector plate and the middle mold containing multiple cavities are located between the upper mold assembly and the lower mold assembly, and the upper ejector plate and the middle mold containing multiple cavities are located at the top and bottom of any one of the first powder filling plate and the second powder filling plate, respectively.

[0009] As a preferred embodiment of this utility model, a first forming cavity and a second forming cavity are provided on the middle mold containing multiple cavities. The length, width and thickness of the first powder filling plate and the second powder filling plate are equal. A first feeding powder groove corresponding to the first forming cavity is provided through the first powder filling plate, and a second feeding powder groove corresponding to the second forming cavity is provided through the second powder filling plate.

[0010] As a preferred embodiment of this utility model, the first forming cavity corresponds to the first upper punch body and the first lower punch body, and the second forming cavity corresponds to the second upper punch body and the second lower punch body.

[0011] As a preferred embodiment of this utility model, a first upper ejection groove and a second upper ejection groove are provided through the upper ejection plate, and the first upper ejection groove is compatible with the first upper punch body, the second upper ejection groove and the second upper punch body.

[0012] The beneficial effects of this utility model are as follows: by designing mold cavities of different sizes, and filling plates of different sizes corresponding to the positions of mold cavities of different sizes, and upper and lower punches of different sizes corresponding to mold cavities of different sizes, when switching machine types, only the filling plates of different size series need to be replaced. This allows the integrated inductor forming mold to meet the needs of rapid sample delivery and sample testing of inductors of various sizes, realize the use of a single mold for multiple size series of products, save costs, reduce production mold change time, and improve production efficiency, thereby solving the problems mentioned in the background art. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ;

[0015] Figure 3 This is a three-dimensional structural diagram of the upper mold assembly in this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the lower mold assembly in this utility model;

[0017] Figure 5 This is a three-dimensional structural diagram of the powder feeder in this utility model;

[0018] Figure 6 This is a schematic diagram of the three-dimensional structure of the upper release plate in this utility model;

[0019] Figure 7 This is a schematic diagram of the three-dimensional structure of the middle mold containing multi-sized cavities in this utility model;

[0020] In the diagram: 1. Integrated inductor forming mold; 2. Powder feeder; 21. First powder filling plate; 211. First powder discharge trough; 22. Second powder filling plate; 221. Second powder discharge trough; 3. Upper mold assembly; 31. Upper stamping mold body; 311. Upper punch fixing plate; 312. Upper punch; 3121. First upper punch body; 3122. Second upper punch body; 32. Upper backing plate; 33. Upper mold base; 4. Lower mold assembly; 41. Lower stamping mold body; 411. Lower punch fixing plate; 412. Lower punch; 4121. First lower punch body; 4122. Second lower punch body; 42. Lower backing plate; 43. Lower mold base; 5. Upper stripper plate; 51. First upper stripper groove; 52. Second upper stripper groove; 6. Middle mold containing multiple cavities; 61. First forming cavity; 62. Second forming cavity. Detailed Implementation

[0021] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Example

[0023] like Figures 1 to 7 As shown, an inductor forming apparatus includes: an integrated inductor forming mold 1 and a powder feeder 2. The integrated inductor forming mold 1 is composed of an upper mold assembly 3, a lower mold assembly 4, an upper ejector plate 5, and a middle mold 6 containing cavities of multiple sizes. The upper ejector plate 5 and the middle mold 6 containing cavities of multiple sizes are located between the upper mold assembly 3 and the lower mold assembly 4.

[0024] In this embodiment, the powder feeder 2 includes a first powder filling plate 21 and a second powder filling plate 22 adapted to the middle mold 6 containing multiple-sized cavities. The upper ejector plate 5 and the middle mold 6 containing multiple-sized cavities are located at the top and bottom of any one of the first powder filling plate 21 and the second powder filling plate 22, respectively. The middle mold 6 containing multiple-sized cavities has a first forming cavity 61 and a second forming cavity 62. The length, width, and thickness of the first powder filling plate 21 and the second powder filling plate 22 are equal. A first discharge powder groove 211 corresponding to the first forming cavity 61 is opened through the first powder filling plate 21, and a second forming cavity is opened through the second powder filling plate 22. The corresponding second powder feeding trough 221, through the design of the first powder filling plate 21 and the first powder feeding trough 211, the second powder filling plate 22 and the second powder feeding trough 221, can be used for powder filling operations of products of various sizes. Combined with the design of the middle mold 6 containing mold cavities of multiple sizes, the overall device can realize the molding operation of products of various sizes. When switching models, only the powder filling plates of different sizes need to be replaced. This allows the integrated inductor molding mold 1 to meet the needs of rapid sample feeding and sample testing of inductors of various sizes. It enables multiple sizes of products to share a single mold, saving costs, reducing the time for changing molds during production, and improving production efficiency.

[0025] In this embodiment, the upper mold assembly 3 includes an upper stamping mold body 31, an upper backing plate 32, and an upper mold base 33. The upper stamping mold body 31 is composed of an upper punch fixing plate 311 and an upper punch 312. The upper punch 312 includes a first upper punch body 3121 and a second upper punch body 3122. The lower mold assembly 4 includes a lower stamping mold body 41, a lower backing plate 42, and a lower mold base 43. The lower stamping mold body 41 is composed of a lower punch fixing plate 411 and a lower punch 412. The lower punch 412 includes a first lower punch body 4121 and a second lower punch. The body 4122, the first upper punch body 3121 and the first lower punch body 4121, the second upper punch body 3122 and the second lower punch body 4122 are all symmetrically distributed vertically, and the first upper punch body 3121 and the second upper punch body 3122, the first lower punch body 4121 and the second lower punch body 4122 are all arranged in parallel. Through the design of the first upper punch body 3121 and the first lower punch body 4121, the second upper punch body 3122 and the second lower punch body 4122, they can be used for stamping operations of products of various sizes.

[0026] In this embodiment, as Figure 3 and Figure 4As shown, the upper punch 312 is fixedly installed at the bottom of the upper die holder 33 via the upper punch fixing plate 311, and the upper pad 32 is fixedly installed between the upper punch fixing plate 311 and the upper die holder 33. The lower punch 412 is fixedly installed at the top of the lower die holder 43 via the lower punch fixing plate 411, and the lower pad 42 is fixedly installed between the lower punch fixing plate 411 and the lower die holder 43. The upper punch fixing plate 311, upper pad 32, upper die holder 33, lower punch fixing plate 411, lower pad 42, and lower die holder 43 facilitate the installation of upper and lower punch bodies of different sizes.

[0027] In this embodiment, as Figure 6 As shown, the upper stripper plate 5 has a first upper stripper groove 51 and a second upper stripper groove 52 through it. The first upper stripper groove 51 is adapted to the first upper punch body 3121, the second upper stripper groove 52 and the second upper punch body 3122. The design of the upper stripper plate 5 and the first upper stripper groove 51 and the second upper stripper groove 52 is mainly to ensure that the forming molds of inductor components of different sizes can be smoothly reset and depressurized during the stamping process.

[0028] In this embodiment, as Figure 7 As shown, the first forming cavity 61 corresponds to the first upper punch body 3121 and the first lower punch body 4121, and the second forming cavity 62 corresponds to the second upper punch body 3122 and the second lower punch body 4122. The design of the middle mold 6 containing multiple cavities of different sizes enables the overall device to realize the forming operation of products of various sizes.

[0029] Implementation Plan: During the molding process, the lower mold assembly 4 moves upward together. The lower punch body stops moving when it reaches the appropriate position within the corresponding cavity of the middle mold 6 containing multiple cavities. Then, the powder filling plate moves outward and feeds powder into the corresponding cavity. After powder feeding, it retracts into the mold frame. After the powder feeder retracts, the upper mold assembly 3 and the upper ejector plate 5 move downward together. The upper ejector plate 5 stops moving after contacting the middle mold 6 containing multiple cavities. The upper mold assembly 3 continues to move downward. At this time, the upper punch body moves into the corresponding cavity, while the lower punch body moves downward a certain distance without detaching from the cavity. The upper punch body contacts the powder and begins to cooperate with the lower punch body for compression molding. After molding, the upper mold assembly 3 and the upper ejector plate 5 move upward together to detach from the middle mold 6 containing multiple cavities. Simultaneously, the lower mold assembly 4 moves downward together to detach from the middle mold 6 containing multiple cavities, and then... (The sentence is incomplete and ends abruptly). The machine, after preheating the intermediate mold, uses high temperature and high pressure to press the upper and lower powder base blocks and coils into a whole. The leads are tightly bonded to the powder base blocks and hot-pressed. An oven is used to bake the product at a certain temperature to improve its strength. Organic coating is evenly applied to the product surface using a spraying device to form a protective layer. The protective layer at the lead position is peeled off using a laser, and the exposed leads are plated with a tin layer by electroplating. Finally, the electroplated product is tested to complete production. When producing other size series products, it is not necessary to change the intermediate mold, upper and lower punches, demolding mechanism, etc. Only the powder filling plate that conforms to the size series needs to be replaced. Then the machine is debugged to complete production. It can meet the needs of rapid sample delivery and sample testing of inductors of various sizes. It can realize the use of a single mold for multiple size series products, saving costs, reducing production mold change time, and improving production efficiency.

[0030] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0031] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An inductor forming apparatus, characterized in that, include: An integrated inductor forming mold and powder feeder. The integrated inductor forming mold is composed of an upper mold assembly, a lower mold assembly, an upper stripper plate, and a middle mold containing cavities of multiple sizes. The powder feeder includes a first powder filling plate and a second powder filling plate adapted to the middle mold containing cavities of multiple sizes. The upper mold assembly includes an upper stamping mold body, an upper backing plate, and an upper mold base. The upper stamping mold body is composed of an upper punch fixing plate and an upper punch. The upper punch includes a first upper punch body and a second upper punch body. The lower mold assembly includes a lower stamping mold body, a lower backing plate, and a lower mold base. The lower stamping mold body is composed of a lower punch fixing plate and a lower punch. The lower punch includes a first lower punch body and a second lower punch body.

2. The inductor forming apparatus according to claim 1, characterized in that, The first upper punch body and the first lower punch body, the second upper punch body and the second lower punch body are all symmetrically distributed vertically, and the first upper punch body and the second upper punch body, the first lower punch body and the second lower punch body are all arranged in parallel.

3. The inductor forming apparatus according to claim 1, characterized in that, The upper punch is fixedly installed at the bottom of the upper die holder via the upper punch fixing plate, and the upper backing plate is fixedly installed between the upper punch fixing plate and the upper die holder. The lower punch is fixedly installed at the top of the lower die holder via the lower punch fixing plate, and the lower backing plate is fixedly installed between the lower punch fixing plate and the lower die holder.

4. The inductor forming apparatus according to claim 1, characterized in that, The upper ejector plate and the middle mold containing cavities of multiple sizes are located between the upper mold assembly and the lower mold assembly, and the upper ejector plate and the middle mold containing cavities of multiple sizes are located at the top and bottom of any one of the first powder filling plate and the second powder filling plate, respectively.

5. An inductor forming apparatus according to claim 4, characterized in that, The middle mold containing multiple mold cavities has a first forming mold cavity and a second forming mold cavity. The length, width and thickness of the first powder filling plate and the second powder filling plate are equal. A first discharge powder groove corresponding to the first forming mold cavity is opened through the first powder filling plate, and a second discharge powder groove corresponding to the second forming mold cavity is opened through the second powder filling plate.

6. An inductor forming apparatus according to claim 5, characterized in that, The first forming cavity corresponds to the first upper punch body and the first lower punch body, and the second forming cavity corresponds to the second upper punch body and the second lower punch body.

7. An inductor forming apparatus according to claim 1, characterized in that, The upper ejector plate has a first upper ejector groove and a second upper ejector groove through it, and the first upper ejector groove is compatible with the first upper punch body, the second upper ejector groove and the second upper punch body.

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