Die for manually pressing magnetic powder core

Abstract

The utility model provides a mould for manually pressing a magnetic powder core, which comprises a base, a pressing base, a core rod connected with the pressing base and a pressing rod, a first through hole is arranged on the base, one end of the first through hole is used for installing the pressing base, and when the pressing base is arranged in the first through hole, the pressing rod is arranged on the pressing base. The core rod is arranged in the first through hole in a penetrating mode so that the first through hole can be divided into a pressing cavity used for loading magnetic powder core raw material powder, and the pressing rod is matched with the pressing cavity. The magnetic powder core sample piece manufacturing device is simple in structure, convenient to operate, suitable for manufacturing scenes of a single magnetic powder core sample piece or a small number of magnetic powder core sample pieces, capable of rapidly manufacturing the magnetic powder core sample pieces, low in cost, convenient to disassemble and assemble in structure and capable of meeting the rapid manufacturing requirements of the magnetic powder core sample pieces of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic powder core pressing, in particular to a mold for manually pressing magnetic powder cores. Background Art

[0002] Magnetic powder core is a soft magnetic material made by mixing ferromagnetic powder and insulating medium. It has good frequency characteristics and energy-saving characteristics and is a key component of inductor devices in modern power electronic equipment.

[0003] At present, the production of magnetic powder cores is usually achieved by using large-scale magnetic powder core molding and pressing equipment. The magnetic powder core molding and pressing equipment includes a feeding component, a mold component and a pressing component. The pressing process is specifically as follows: the magnetic powder is filled into the mold in the mold assembly through the feeding component, and then the magnetic powder in the mold is pressed into shape by the pressure rod in the pressing component.

[0004] However, the method of using large-scale magnetic powder core molding and pressing equipment to make magnetic powder cores is costly and more suitable for batch production of magnetic powder cores, but not for single or small quantities of magnetic powder core samples. Furthermore, when it is necessary to make magnetic powder core samples of a specific size, the replacement process of the mold and the pressure rod in the magnetic powder core molding and pressing equipment is relatively complicated, and the required magnetic powder core samples cannot be quickly made. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a mold for manually pressing magnetic powder cores, aiming to solve the technical problem that the method of making magnetic powder cores using large-scale magnetic powder core molding and pressing equipment in the prior art is not suitable for the production scenarios of single or a small number of magnetic powder core samples, and cannot achieve the required magnetic powder core sample Rapid production cannot be achieved.

[0006] The purpose of the utility model is to provide a mold for manually pressing a magnetic powder core, comprising a base, a pressing base, a core rod connected to the pressing base, and a pressing rod, wherein the base is provided with a first through hole, one end of the first through hole is used to install the pressing base, when the pressing base is installed in the first through hole, the core rod is passed through the interior of the first through hole to separate the first through hole into a pressing chamber for loading raw material powder of the magnetic powder core, and the pressing rod is adapted to the pressing chamber.

[0007] Compared with the prior art, the mold for manually pressing magnetic powder cores of the utility model has the following beneficial effects: simple structure, convenient operation, suitable for the production scenarios of single or small quantities of magnetic powder core samples, capable of quickly producing magnetic powder core samples, low cost, and convenient structure disassembly and assembly, which can meet the rapid production requirements of magnetic powder core samples of different sizes. Specifically, the mold for manually pressing magnetic powder cores includes a base, a pressing base, a core rod and a pressing rod. By assembling the pressing base, the core rod and the base, the first through hole of the base can be separated into a pressing chamber. The pressing chamber is used to load the raw material powder of the magnetic powder core. Manual pressing using the pressing rod can quickly obtain the desired magnetic powder core sample, and the size of the pressing chamber can be changed by replacing the pressing base and the core rod, thereby meeting the production requirements of magnetic powder core samples of different sizes.

[0008] In addition, the mold for manually pressing the magnetic powder core according to the utility model may also have the following additional technical features:

[0009] Furthermore, the first through hole is arranged along the height direction of the base, the total height of the pressing base is less than the hole depth of the first through hole, and the total length of the rod body of the core rod is greater than or equal to the hole depth of the first through hole.

[0010] Furthermore, the base includes a first seat body portion and a second seat body portion arranged at one end of the first seat body portion, the first through hole passes through the first seat body portion and the second seat body portion, and the end surface of the first seat body portion is connected to the circumferential surface of the second seat body portion to form a step surface.

[0011] Furthermore, the pressing base is provided with a second through hole, which is arranged along the height direction of the pressing base, and the second through hole is adapted to the core rod, and the connection between the core rod and the pressing base is achieved by inserting the core rod into the second through hole.

[0012] Furthermore, the pressing rod includes a pressing rod portion, a gripping portion connected to the pressing rod portion, and a stopper portion connected to the gripping portion, the pressing rod portion is adapted to the pressing chamber, and the total length of the pressing rod portion is greater than the depth of the pressing chamber.

[0013] Furthermore, the pressure rod is provided with a third through hole, the third through hole is arranged along the length direction of the rod shaft of the pressure rod, and the third through hole is adapted to the core rod.

[0014] Furthermore, a receiving groove is provided at one end of the pressure rod portion away from the gripping portion, the receiving groove is arranged along the length direction of the rod body of the pressure rod portion, the receiving groove is adapted to the core rod, and the groove depth of the receiving groove is greater than the total length of the core rod.

[0015] Furthermore, a gripping curved surface is provided on the circumference of one end of the gripping portion connected to the pressure rod portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of a mold for manually pressing a magnetic powder core of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure explosion of the mold for manually pressing the magnetic powder core of the utility model;

[0018] Figure 3 This is a diagram of the internal structure of the mold for manually pressing the magnetic powder core of the utility model when it is in use.

[0019] Among them, the above-mentioned drawings include the following figure marks: 10-base; 11-first seat body; 12-second seat body; 101-first through hole; 102-step surface; 20-pressing base; 201-second through hole; 30-core rod; 40-pressing rod; 41-pressing rod part; 42-holding part; 421-holding curved surface; 43-stop part; 50-magnetic powder core sample.

[0020] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] See also Figures 1 to 3A mold for manually pressing a magnetic powder core of the utility model comprises a base 10, a pressing base 20, a core rod 30 connected to the pressing base 20, and a pressing rod 40. A first through hole 101 is provided on the base 10. One end of the first through hole 101 is used to install the pressing base 20. When the pressing base 20 is installed in the first through hole 101, the core rod 30 is passed through the inside of the first through hole 101 to separate the first through hole 101 into a pressing chamber for loading raw material powder of the magnetic powder core. The pressing rod 40 is adapted to the pressing chamber.

[0025] Specifically, a first through hole 101 is provided in the middle of the base 10, the first through hole 101 is a circular through hole, and the first through hole 101 is arranged along the height direction of the base 10. Further, the base 10 includes a first base body portion 11 and a second base body portion 12 connected to the first base body portion 11, the first through hole 101 penetrates the first base body portion 11 and the second base body portion 12, the end surface of the first base body portion 11 is connected to the peripheral surface of the second base body portion 12 to form a step surface 102, and the step surface 102 can be used as a grip end surface during actual use, so that the user can take or fix the base 10.

[0026] The pressing base 20 is provided with a second through hole 201, which is arranged along the height direction of the pressing base 20. The second through hole 201 is adapted to the core rod 30, and the core rod 30 is inserted into the second through hole 201 to realize the connection between the core rod 30 and the pressing base 20. As a specific example, in this embodiment, the cross section of the pressing base 20 is annular, the outer diameter of the pressing base 20 is consistent with the diameter of the first through hole 101, and the inner diameter of the pressing base 20, that is, the diameter of the second through hole 201, is smaller than the diameter of the first through hole 101. Further, the total height of the pressing base 20 is less than the hole depth of the first through hole 101, and the total length of the rod body of the core rod 30 is greater than or equal to the hole depth of the first through hole 101.

[0027] The pressing rod 40 includes a pressing rod portion 41, a gripping portion 42 connected to the pressing rod portion 41, and a stopper portion 43 connected to the gripping portion 42. The pressing rod portion 41 is adapted to the pressing chamber, and the total length of the pressing rod portion 41 is greater than the depth of the pressing chamber. As a specific example, in this embodiment, the pressing rod 40 is provided with a third through hole 401, which is a circular through hole. The third through hole 401 is adapted to the core rod 30, and the third through hole 401 is arranged along the length direction of the rod body of the pressing rod 40. In other words, the third through hole 401 passes through the pressing rod portion 41, the gripping portion 42 and the stopper portion 43, and the pressing rod 40 is a hollow structure as a whole. In this way, the setting of the third through hole 401 can not only serve as a receiving hole adapted to the core rod 30 so that the pressing rod 40 can be pressed, but also can serve as a weight-reducing hole to reduce the overall weight of the pressing rod 40 and improve the user's experience.

[0028] Furthermore, a gripping curved surface 421 is provided on the circumference of one end of the gripping portion 42 connected to the pressure rod portion 41, so that the user can better hold the pressure rod 40. In this embodiment, the cross-sections of the pressure rod portion 41 and the stopper portion 43 in the pressure rod 40 are both circular, and the outer diameter of the stopper portion 43 is larger than the outer diameter of the pressure rod portion 41. The gripping portion 42 serves as a transition zone for connecting the two, and the radial length of its cross-section gradually increases from the pressure rod portion 41 to the stopper portion 43. The design of the stopper portion 43 can play a role of limiting, which can effectively prevent the pressure rod 40 from falling out of the user's hand during use.

[0029] In some embodiments, a receiving groove is provided at one end of the pressure rod portion 41 away from the holding portion 42, and the receiving groove is arranged along the length direction of the rod body of the pressure rod portion 41. The receiving groove is adapted to the core rod 30, and the groove depth of the receiving groove is greater than the total length of the core rod 30. In other words, the pressure rod portion 41 in the pressure rod 40 is a hollow structure, and the cross-section of the pressure rod portion 41 is a circular ring. The holding portion 42 and the stop portion 43 are both solid structures. Such a design can prevent external impurities from entering the pressing chamber of the pressure rod 40 during the pressing process, thereby affecting the pressing effect of the magnetic powder core.

[0030] In actual use, the use principle of the mold for manually pressing magnetic powder cores of the utility model can be as follows: first assemble the pressing base 20 and the core rod 30, specifically, insert one end of the core rod 30 into the second through hole 201 on the pressing base 20, and make the end face of the core rod 30 inserted into the second through hole 201 flush with the end face of the pressing base 20. Then, install the pressing base 20 equipped with the core rod 30 into the first through hole 101 from the first seat body 11 of the base 10, and finally make the end face of the pressing base 20 flush with the end face of the first seat body 11 away from the second seat body 12. At this time, the core rod 30 is located inside the first through hole 101, and the end face of the end of the core rod 30 away from the pressing base 20 exceeds the end face of the second seat body 12 away from the first seat body 11. At this time, the internal space of the first through hole 101 is separated by the core rod 30 and the pressing base 20 into a pressing chamber with a circular cross section. Then, the raw material powder of the magnetic powder core is loaded into the pressing chamber, and then the pressing rod 40 is placed in the pressing chamber loaded with the raw material powder, and a certain pressure is applied to the pressing rod 40, so that the raw material powder inside the pressing chamber is pressed and formed. After the magnetic powder core sample 50 is pressed and formed, the pressing rod 40 can be taken out, and the base 10 can be manually inverted so that the magnetic powder core sample 50 is poured out of the pressing chamber, thereby achieving the purpose of quickly making the magnetic powder core sample 50. It should be noted that when it is necessary to make a magnetic powder core sample 50 of a specific size, that is, when it is necessary to make a magnetic powder core sample 50 with inconsistent inner diameters, the pressing base 20, the core rod 30 and the pressing rod 40 can be replaced, and the above-mentioned assembly and pressing process can be repeated.

[0031] In summary, the beneficial effects of the mold for manually pressing magnetic powder cores of the utility model are: simple structure, convenient operation, suitable for the production scenarios of single or small quantities of magnetic powder core samples, capable of quickly producing magnetic powder core samples, low cost, and convenient structure disassembly and assembly, which can meet the rapid production requirements of magnetic powder core samples of different sizes. Specifically, the mold for manually pressing magnetic powder cores includes a base, a pressing base, a core rod and a pressure rod. By assembling the pressing base, the core rod and the base, the first through hole of the base can be separated into a pressing chamber. The pressing chamber is used to load the raw material powder of the magnetic powder core. Manual pressing using the pressure rod can quickly obtain the desired magnetic powder core sample, and the size of the pressing chamber can be changed by replacing the pressing base and the core rod, thereby meeting the rapid production requirements of magnetic powder core samples of different sizes.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of application of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model application shall be based on the attached claims.

Claims

1. A mold for manually pressing a magnetic powder core, characterized in that: It includes a base, a pressing base, a core rod connected to the pressing base, and a pressing rod. The base is provided with a first through hole, one end of the first through hole is used to install the pressing base, when the pressing base is installed in the first through hole, the core rod is passed through the inside of the first through hole to separate the first through hole into a pressing chamber for loading magnetic powder core raw material powder, and the pressing rod is adapted to the pressing chamber.

2. The mold for manually pressing magnetic powder cores according to claim 1, characterized in that: The first through hole is arranged along the height direction of the base, the total height of the pressing base is less than the hole depth of the first through hole, and the total length of the rod body of the core rod is greater than or equal to the hole depth of the first through hole.

3. The mold for manually pressing magnetic powder cores according to claim 1, characterized in that: The base includes a first base portion and a second base portion provided at one end of the first base portion, the first through hole passes through the first base portion and the second base portion, and the end surface of the first base portion is connected to the circumferential surface of the second base portion to form a step surface.

4. The mold for manually pressing magnetic powder cores according to claim 1, characterized in that: The pressing base is provided with a second through hole, which is arranged along the height direction of the pressing base. The second through hole is adapted to the core rod, and the connection between the core rod and the pressing base is achieved by inserting the core rod into the second through hole.

5. The mold for manually pressing magnetic powder cores according to claim 1, characterized in that: The pressing rod comprises a pressing rod portion, a gripping portion connected to the pressing rod portion, and a stopper portion connected to the gripping portion. The pressing rod portion is adapted to the pressing chamber, and a total length of the pressing rod portion is greater than a depth of the pressing chamber.

6. The mold for manually pressing magnetic powder cores according to claim 5, characterized in that: The pressure rod is provided with a third through hole, and the third through hole is arranged along the length direction of the rod body of the pressure rod, and the third through hole is adapted to the core rod.

7. The mold for manually pressing magnetic powder cores according to claim 5, characterized in that: An accommodating groove is provided at one end of the pressure rod part away from the gripping part. The accommodating groove is arranged along the length direction of the rod body of the pressure rod part. The accommodating groove is adapted to the core rod, and the groove depth of the accommodating groove is greater than the total length of the core rod.

8. The mold for manually pressing magnetic powder cores according to claim 5, characterized in that: A gripping curved surface is provided on the circumference of one end of the gripping portion connected to the pressing rod portion.

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