Uniform charging device for large-size magnetic core forming
By designing a uniform charging device for large-size magnetic core molding, the density fluctuation problem caused by unstable material weight is solved, the uniform distribution of powder is achieved, the consistency of finished products is improved and the production cost is reduced.
Patent Information
- Application Number
- CN202422409676.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-30
AI Technical Summary
During the process of forming and pressing of large-size cores of soft ferrite, unstable material weight leads to large fluctuations in density and differences in density, resulting in poor consistency of finished products, prone to quality problems such as deformation and cracking. The existing sorting methods are costly and easy to miss inspection.
A uniform charging device for forming large-size magnetic cores is designed, including push plates, loading boxes, loading pipes and linkage rods. The powder is uniformly distributed through symmetrically distributed cutting pipes and spring hoses. The back and forth of the loading box is realized by using the press cam, and an observation window is equipped to check the powder distribution.
The uniform distribution of powder in the loading box is achieved, density difference caused by unstable material weight is avoided, consistency of finished products is improved, and defective yield and production costs are reduced.
Smart Images
Figure CN223174347U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of soft ferrite core production, and particularly relates to a uniform charging device for forming large-size cores. Background Art
[0002] During the molding and pressing process, soft ferrite cores can experience significant fluctuations in weight and density. This is especially true for large-scale soft ferrite cores. Uneven loading can lead to even greater density fluctuations, significant variations in blank weight, poor dimensional consistency after sintering, and various quality issues such as deformation and cracking. The typical approach is to rely on operator self-inspection of weight and size, or monitoring through molding flow testing, and then adjust the press based on the test results.
[0003] This makes it easy to produce defective products, and they cannot be sorted. Even if sorting is necessary, the sorting cost is high, and there is a risk of missed inspections, and sometimes the entire batch must be scrapped. This not only affects production speed but also increases production costs.
[0004] Therefore, it is urgent to develop a device that can reduce the density difference caused by unstable material weight during the molding and pressing process of large-size soft ferrite cores, thereby reducing quality problems such as core deformation and cracking. Utility Model Content
[0005] The purpose of the present invention is to provide a uniform charging device for large-sized magnetic core molding to solve the problems raised in the above-mentioned background technology. The present invention provides a uniform charging device for large-sized magnetic core molding, which has the characteristics of evenly distributing powder during charging, thereby avoiding density differences caused by unstable material weight.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a uniform loading device for large-size magnetic core molding, comprising a push plate installed on a mold frame and located above a die, a loading box being provided on the push plate, a material cavity being provided inside the loading box, and a drop hole being provided on the bottom surface of the loading box, a plurality of symmetrically distributed discharge pipes being connected above the loading box, and the discharge pipes being connected to the material cavity.
[0007] In order to ensure that the powder can still enter the charging box smoothly during the movement of the charging box back and forth, and further ensure the uniform distribution of the powder in the charging box, the discharge pipe further includes a drop pipe, a spring hose and a diversion pipe, wherein the drop pipe, the spring hose and the diversion pipe are connected in sequence from top to bottom.
[0008] In order to ensure the service life of the discharge pipe, the discharge pipe and the diversion pipe are both made of stainless steel pipe structure.
[0009] In order to facilitate the inspection of the flow direction and distribution of the powder material, as well as the distribution of particles in the front, back, left, and right directions, further, an inclined window is provided on one side above the loading box. An observation cover is provided outside the window. The upper side edge of the observation cover is hinged to the loading box, and a handle close to the lower side edge is installed on the upper surface of the observation cover.
[0010] In order to utilize the rotation of the press cam to achieve the reciprocating filling of the loading box, further, a linkage rod is connected to the side surface of the loading box, and the linkage rod is connected to the cam of the press through a connecting rod.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] 1. The present utility model is provided with a plurality of symmetrically distributed blanking pipes above the loading box for adding powder material into the loading box, making the powder material more evenly distributed in the loading box, thereby avoiding the density difference caused by unstable material weight;
[0013] 2. The blanking pipe of the present utility model includes a blanking pipe, a spring hose, and a shunt pipe. Through the setting of the spring hose, the powder material can still smoothly enter the loading box during the forward and backward movement of the loading box, thereby further ensuring the uniformity of the powder material distribution in the loading box;
[0014] 3. An inclined window is provided on one side above the loading box of the present utility model, which is convenient for inspecting the flow direction and distribution of the powder material, as well as the distribution of particles in the front, back, left, and right directions;
[0015] 4. A linkage rod is connected to the side surface of the loading box of the present utility model, and the linkage rod is connected to the cam of the press through a connecting rod, and the reciprocating filling of the loading box is realized by using the rotation of the press cam. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of the present utility model;
[0017] Figure 2 is a schematic structural diagram of the blanking pipe of the present utility model;
[0018] In the figure: 1. Pushing plate; 2. Female die; 3. Loading box; 4. Linkage rod; 5. Blanking pipe; 51. Blanking pipe; 52. Spring hose; 53. Shunt pipe; 6. Observation cover. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0020] Example 1
[0021] Please refer to Figure 1-2 , the present utility model provides the following technical solutions: A uniform feeding device for large-size magnetic core forming, including a pushing plate 1 installed on a die holder and located above a concave die 2. A loading box 3 is arranged on the pushing plate 1. A material cavity is provided inside the loading box 3, and a blanking hole is provided on the bottom surface of the loading box 3. Six symmetrically distributed blanking pipes 5 are connected above the loading box 3, and the blanking pipes 5 are communicated with the material cavity.
[0022] By adopting the above technical solutions, the present utility model is provided with a number of symmetrically distributed blanking pipes 5 above the loading box 3 for adding powder into the loading box 3, so that the powder is more evenly distributed in the loading box 3, thereby avoiding the density difference caused by unstable material weight.
[0023] Specifically, the blanking pipe 5 includes a blanking pipe 51, a spring hose 52, and a shunt pipe 53. Among them, the blanking pipe 51, the spring hose 52, and the shunt pipe 53 are connected in sequence from top to bottom.
[0024] By adopting the above technical solutions, through the setting of the spring hose 52, the powder can still smoothly enter the loading box 3 during the forward and backward movement of the loading box 3, thereby further ensuring the uniformity of the powder distribution in the loading box 3.
[0025] Specifically, both the blanking pipe 51 and the shunt pipe 53 are of stainless steel pipe structure.
[0026] By adopting the above technical solutions, the service life of the blanking pipe 5 is ensured.
[0027] Example 2
[0028] The difference between this example and Example 1 is that: Specifically, an inclined window is opened on one side above the loading box 3, and an observation cover 6 is provided outside the window. The upper side edge of the observation cover 6 is hinged to the loading box 3, and a handle close to the lower side edge is installed on the upper surface of the observation cover 6.
[0029] By adopting the above technical solutions, it is convenient to check the flow direction, distribution of the powder, and the distribution of particles in the front, back, left, and right directions.
[0030] Example 3
[0031] The difference between this example and Example 1 is that: Specifically, a linkage rod 4 is connected to the side surface of the loading box 3, and the linkage rod 4 is connected to the cam of the press through a connecting rod.
[0032] By adopting the above technical solutions, the reciprocating filling of the loading box 3 is realized by the rotation of the press cam.
[0033] In summary, the present utility model is provided with a plurality of symmetrically distributed blanking pipes 5 above the loading box 3 for adding powder into the loading box 3, making the powder more evenly distributed in the loading box 3, thereby avoiding the density difference caused by unstable material weight; the blanking pipe 5 of the present utility model includes a blanking pipe 51, a spring hose 52 and a shunt pipe 53. Through the setting of the spring hose 52, the powder can still smoothly enter the loading box 3 during the forward and backward movement of the loading box 3, thereby further ensuring the uniformity of the powder distribution in the loading box 3; on one side above the loading box 3 of the present utility model, an inclined window is provided to facilitate the inspection of the powder flow direction, distribution and the distribution of particles in the front, back, left and right; a linkage rod 4 is connected to the side surface of the loading box 3 of the present utility model, and the linkage rod 4 is connected to the cam of the press through a connecting rod, and the reciprocating filling of the loading box 3 is realized by the rotation of the press cam.
[0034] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A uniform loading device for large-size magnetic core forming, characterized in that: It includes a knockout plate installed on the mold base and located above the female mold. A loading box is arranged on the knockout plate. A material cavity is provided inside the loading box, and a blanking hole is provided on the bottom surface of the loading box. A plurality of symmetrically distributed blanking pipes are connected above the loading box, and the blanking pipes are communicated with the material cavity.
2. The uniform loading device for forming a large-sized magnetic core according to claim 1, wherein: The blanking pipe includes a blanking pipe, a spring hose and a shunt pipe. Among them, the blanking pipe, the spring hose and the shunt pipe are connected in sequence from top to bottom.
3. The uniform loading device for forming a large-sized magnetic core according to claim 2, characterized in that: Both the blanking pipe and the shunt pipe are of stainless steel pipe structure.
4. The uniform loading device for forming a large-sized magnetic core according to claim 1, characterized in that: An inclined window is opened on one side above the loading box.
5. The uniform loading device for forming a large-sized magnetic core according to claim 4, wherein: An observation cover is arranged outside the window.
6. The uniform loading device for large-sized magnetic core forming according to claim 5, wherein: The upper side edge of the observation cover is hinged to the loading box.
7. The uniform loading device for forming a large-sized magnetic core according to claim 5, wherein: A handle close to the lower side edge is installed on the upper surface of the observation cover.
8. The uniform feeding device for large-size magnetic core forming according to claim 1, characterized in that: A linkage rod is connected to the side surface of the loading box, and the linkage rod is connected to the cam of the press through a connecting rod.