Female mold structure of integrally-formed inductor hot-pressing mold

Abstract

The utility model relates to a female mold structure of an integrally-formed inductor hot-pressing mold, which belongs to the technical field of powder forming molds and comprises a female mold body, the female mold body comprises a first pressing surface and a second pressing surface corresponding to the first pressing surface, a first boss is arranged on the first pressing surface, and a second boss is arranged on the second pressing surface. The first boss and the second boss are provided with a plurality of through cavities, the two ends of each cavity are located on the surface of the first boss and the surface of the second boss respectively, through bolt holes are formed in the portions, on the two sides of the first boss and the second boss, of the first pressing face and the second pressing face, and through guide holes are formed in the portions, between the bolt holes, of the first pressing face and the second pressing face. And heating grooves are formed in the female mold body on the other two sides of the first boss and the second boss. The bosses are arranged on the two pressing faces of the female mold body, after the boss on one side and the upper half portion of the mold cavity are abraded and cannot be used, the female mold can be detached and overturned, the boss on the other side and the lower half portion of the mold cavity can be used, cost is saved, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder forming molds, in particular to a mother mold structure of an integrally formed inductive hot pressing mold. Background Art

[0002] With the development of the inductor industry and the continuous improvement of manufacturing and R&D technologies, inductor products are constantly being upgraded and replaced, and a wide variety of inductor types are emerging. Among them, one-piece molded inductors are compact, capable of carrying large currents, with higher inductance values and lower leakage inductance. Furthermore, their fully enclosed die-cast structure provides excellent magnetic shielding, effectively reducing electromagnetic interference, and has a wider range of applications, gaining market recognition.

[0003] One-piece molded inductors require hot pressing during production. A hot pressing mold is a production mold that hot-presses metal powder into inductor components. During operation, the inductor coil is placed into the cavity of the master mold in the mold. After the cavity is filled with powder, the upper and lower punches in the mold work together to press the metal powder filled in the master mold cavity, creating the final inductor product through hot pressing. Existing master molds are equipped with bosses to facilitate material discharge and stamping. However, hot pressing of the mold causes significant wear on the master mold bosses and the upper half of the master mold cavity. This wear results in a poor quality, unusable inductor, requiring the master mold to be replaced, which is costly and reduces work efficiency. Utility Model Content

[0004] The purpose of the present invention is to provide a mother mold structure for an integrally formed inductor hot pressing mold to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A mother mold structure of an integrally formed inductive hot pressing mold includes a mother mold body, the mother mold body including a first pressing surface and a second pressing surface corresponding to the first pressing surface, the first pressing surface is provided with a first boss, the second pressing surface is provided with a second boss, the first boss and the second boss are provided with a plurality of interconnected cavities, the two ends of the cavities are respectively located on the surface of the first boss and the surface of the second boss, through bolt holes are provided on the first pressing surface and the second pressing surface on both sides of the first boss and the second boss, through guide holes are provided on the first pressing surface and the second pressing surface between the bolt holes, and heating grooves are provided inside the mother mold body on the other two sides of the first boss and the second boss.

[0007] Preferably, the cavity is located at both ends of the first boss and the second boss and has a bell-mouth structure.

[0008] Preferably, the heating groove is located through the inside of the mother body, and the heating groove forms heating holes on the corresponding two side surfaces of the mother body.

[0009] Preferably, the heights of the first boss and the second boss from the first pressing surface and the second pressing surface are both 2-3.5 mm.

[0010] Preferably, the surface of the female body is chrome-plated.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model provides bosses on the two corresponding pressing surfaces of the mother mold body. When the bosses and the upper half of the cavity on one side are worn and cannot be used, the mother mold can be disassembled and turned over, and the bosses and the lower half of the cavity on the other side can be used, thereby increasing the service life of the mother mold, saving costs and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is the first pressing surface view of the utility model;

[0015] Figure 3 This utility model is a side view Figure 1 ;

[0016] Figure 4 This utility model is a side view Figure 2 ;

[0017] Figure 5 This is an enlarged view of point A of the present utility model.

[0018] Reference numerals

[0019] 1. Female body, 2. First pressing surface, 3. Second pressing surface, 4. First boss, 5. Second boss, 6. Cavity, 7. Bolt hole, 8. Guide hole, 9. Heating hole, 10. Heating groove. DETAILED DESCRIPTION

[0020] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0021] like Figure 1-4 The figure shows a female mold structure for an integrated inductive hot pressing mold, comprising a female mold body 1. The female mold body 1 is chrome-plated to improve hardness and wear resistance. The female mold body 1 includes a first pressing surface 2 and a second pressing surface 3 corresponding to the first pressing surface 2. The first pressing surface 2 is provided with a first boss 4, and the second pressing surface 3 is provided with a second boss 5. The height of the first boss 4 and the second boss 5 from the first pressing surface 2 and the second pressing surface 3 are both 2-3.5 mm.

[0022] A plurality of interconnected cavities 6 are formed on the first boss 4 and the second boss 5 , and two ends of the cavities 6 are located on the surface of the first boss 4 and the surface of the second boss 5 respectively.

[0023] like Figure 5 As shown, the cavity 6 is located at both ends of the first boss 4 and the second boss 5 and is a bell-mouth structure. The bell-mouth structure is provided to prevent damage to the die caused by the deviation of the upper punch and the lower punch. The slope guide provided with the bell-mouth structure can guide the deviated pressure rod; and when the product is withdrawn from the mold after hot pressing, the friction distance of the product withdrawn from the mold is reduced, thereby reducing the wear on the product.

[0024] Bolt holes 7 are provided through the first and second pressing surfaces 2 and 3 on either side of the first and second bosses 4 and 5. Bolt holes 7 are used to secure the female body 1 to the hot pressing die. A guide hole 8 is provided through the first and second pressing surfaces 2 and 3 between the bolt holes 7. The guide hole 8 serves to guide the die during stamping.

[0025] A heating groove 10 is provided inside the female body 1 on the other two sides of the first boss 4 and the second boss 5. The heating groove 10 is located through the female body. The heating groove 10 forms heating holes 9 on the corresponding two side surfaces of the female body. When working, the female body is heated by inserting the heating rod from the heating hole 9 into the heating groove 10.

[0026] The utility model provides bosses on the two corresponding pressing surfaces of the mother mold body. When the bosses and the upper half of the cavity on one side are worn and cannot be used, the mother mold can be disassembled and turned over, and the bosses and the lower half of the cavity on the other side can be used, thereby increasing the service life of the mother mold, saving costs and improving work efficiency.

[0027] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A mother mold structure for an integrally formed inductor hot pressing mold, characterized by: The present invention comprises a female body, wherein the female body comprises a first pressing surface and a second pressing surface corresponding to the first pressing surface, a first boss is provided on the first pressing surface, a second boss is provided on the second pressing surface, a plurality of interconnected cavities are provided on the first boss and the second boss, and the two ends of the cavities are respectively located on the surface of the first boss and the surface of the second boss, through bolt holes are provided on the first pressing surface and the second pressing surface on both sides of the first boss and the second boss, through guide holes are provided on the first pressing surface and the second pressing surface between the bolt holes, and heating grooves are provided inside the female body on the other two sides of the first boss and the second boss.

2. The female mold structure of the one-piece inductive hot pressing mold according to claim 1, characterized in that: The cavity is located at both ends of the first boss and the second boss and has a bell-mouth structure.

3. The female mold structure of the one-piece inductive hot pressing mold according to claim 1, characterized in that: The heating groove is through-through and located in the female main body, and the heating groove forms heating holes on the corresponding two side surfaces of the female main body.

4. The female mold structure of the integrally formed inductive hot pressing mold according to claim 1, characterized in that: The heights of the first boss and the second boss from the first pressing surface and the second pressing surface are both 2-3.5 mm.

5. The female mold structure of the integrally formed inductive hot pressing mold according to claim 1, characterized in that: The surface of the female body is chrome-plated.

Images