Press for ferrite cores

By incorporating an air jet groove and a contact rod within the punch rod, the problem of powder adhesion during the dry pressing of ferrite cores is solved, achieving efficient demolding and clean production, and avoiding mold wear and environmental pollution.

CN224561484UActive Publication Date: 2026-07-28南通强达磁性材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
南通强达磁性材料有限公司
Filing Date
2025-08-29
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

During the dry pressing process, the powder of ferrite cores tends to stick to the inner wall of the mold or the punch, resulting in difficulty in demolding and surface defects of the product. Existing lubricant and vibration demolding methods have the problems of material pollution and low efficiency.

Method used

The punch rod is equipped with an air jet channel and a contact rod structure. The air jet channel blows out the powder and the contact rod scrapes off the powder from the inner wall of the forming tank. The movement of the contact rod is controlled by a motor and an electric push rod, and the powder is collected by a dust suction port to avoid powder contamination.

Benefits of technology

It effectively prevents powder from sticking to the inner wall of the molding tank, improves demolding efficiency, protects the mold and product quality, and reduces environmental pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a pressing machine for preventing material adhesion of ferrite core, and relates to the technical field of magnetic material processing equipment, the punch rod is set above the operation table by utilizing external driving assembly, and the punch rod is matched and arranged in the forming groove, a plurality of air jet grooves are through -going arranged in the punch rod, the openings of the air jet grooves are arranged on the torus of the bottom end of the punch rod, and the plurality of air jet grooves are connected with external air pump, the rotating cylinder is rotatably connected on the ring wall of the punch rod by utilizing bearing, a plurality of grooves are equiangularly arranged on the ring wall of the rotating cylinder, the abutting rods are arranged in the grooves by utilizing adjusting assembly respectively, and the abutting rods are matched and abutted on the inner wall of the forming groove, the motor is fixed on the ring wall of the punch rod, the motor is above the rotating cylinder, and the output end of the motor is equipped with gear, the rotating cylinder is controlled to rotate through the motor and the gear, the powder on the inner wall of the forming groove is scraped off by matching the abutting rod, the powder is blown out of the forming groove through the air jet groove, and the quality of ferrite forming is avoided to be influenced.
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Description

Technical Field

[0001] This utility model relates to the technical field of magnetic material processing equipment, specifically to a pressing machine for ferrite cores that prevents material adhesion. Background Technology

[0002] During the dry pressing process of ferrite cores, the powder tends to stick to the inner wall of the mold or the punch, leading to difficulties in demolding, surface defects in the product, or mold wear. Existing technologies typically solve this problem by using lubricants or vibration demolding, but these methods suffer from material contamination and low efficiency. Therefore, there is an urgent need for a ferrite core pressing machine that prevents material adhesion and addresses these issues. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings and deficiencies of the existing technology by providing a simple, reasonably designed, and easy-to-use pressing machine for ferrite cores that prevents material adhesion, thereby solving the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes an operating table; a forming groove is provided on the operating table;

[0005] It also includes:

[0006] The punch rod is set above the operating table by an external drive component, and the punch rod is inserted into the forming groove. Several air jet grooves are opened through the punch rod, and the openings of the air jet grooves are set on the annular surface at the bottom of the punch rod. The several air jet grooves are connected to an external air pump.

[0007] The rotating cylinder is screwed onto the ring wall of the punch rod using a bearing, and several grooves are formed at equal angles on the ring wall of the rotating cylinder.

[0008] The abutting rods are of several kinds, and each of them is set in the groove by means of an adjusting component, and the abutting rods are set to abut against the inner wall of the forming groove;

[0009] The motor is fixed on the ring wall of the punch rod and is located above the rotating cylinder. The output end of the motor is equipped with a gear that meshes with the tooth groove on the ring wall of the rotating cylinder. The motor is connected to an external power source.

[0010] Furthermore, the adjustment component includes:

[0011] The positioning rods are of several kinds and are symmetrically fixed on the inner wall of the groove, and the abutment rod is movably inserted on the positioning rods;

[0012] The springs are multiple in number and are respectively disposed in the grooves, with the two ends of the springs connected to the inner wall of the groove and the abutment rod, respectively.

[0013] The movable ring is movably sleeved on the ring wall of the rotating cylinder. The electric push rod is fixed on the ring wall of the punch rod. The movable ring and the inclined surface at the top of the abutment rod are fitted together and abutted. The output end of the electric push rod is connected to the movable ring and the electric push rod is connected to an external power source.

[0014] Furthermore, the bottom end of the movable ring is screwed with an abutment ring using a bearing, and the abutment ring and the abutment rod are engaged in abutment.

[0015] Furthermore, the inclined surfaces at the tips of several abutment rods are provided with protective pads, and the abutment rings are set to abut against the protective pads.

[0016] Furthermore, a protective box is fixed on the annular wall of the punch rod, and the motor and electric push rod are located inside the protective box.

[0017] Furthermore, a dust suction port is fixed on the operating table, and the dust suction port is connected to an external dust pump.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the ferrite core pressing machine for preventing material adhesion described in this utility model scrapes the powder off the inner wall of the forming tank by the contact rod, and then sprays the powder out of the forming tank with the air jet, thus avoiding the powder from sticking to the inner wall of the forming tank. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the punch rod in this utility model.

[0021] Figure 3 This is a schematic diagram of the rotating cylinder and the contact rod in this utility model.

[0022] Figure 4 This is a schematic diagram of the adjustment component in this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Operating table; 2. Forming groove; 3. Punch rod; 4. Air jet groove; 5. Rotating cylinder; 6. Groove; 7. Abutment rod; 8. Adjustment component; 9. Motor; 10. Gear; 11. Positioning rod; 12. Spring; 13. Moving ring; 14. Electric push rod; 15. Abutment ring; 16. Protective pad; 17. Protective box; 18. Dust suction port. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] like Figures 1-4 As shown, this specific embodiment adopts the following technical solution: it includes an operating table 1; the operating table 1 is provided with a forming groove 2;

[0027] It also includes:

[0028] The punch rod 3 is set above the operating table 1 by an external drive component, and the punch rod 3 is inserted into the forming groove 2. Several air jet grooves 4 are opened through the punch rod 3, and the opening of the air jet grooves 4 is set on the annular surface at the bottom end of the punch rod 3. The air jet grooves 4 are connected to an external air pump. The air jet grooves 4 facilitate the blowing of the powder adhering to the inner wall of the forming groove 2 out of the forming groove 2. A dust suction port 18 is fixed on the operating table 1 and is connected to an external dust suction pump. This facilitates the adsorption of the powder sprayed out of the forming groove 2 into the dust suction port 18, avoiding environmental pollution.

[0029] The rotating cylinder 5 is screwed onto the ring wall of the punch rod 3 by means of a bearing. Several grooves 6 are opened at equal angles on the ring wall of the rotating cylinder 5. The rotating cylinder 5 rotates on the punch rod 3.

[0030] The abutting rod 7, there are several abutting rods 7, and they are respectively set in the groove 6 by adjusting component 8. The abutting rod 7 is set to abut against the inner wall of the forming groove 2. The rotating cylinder 5 drives several abutting rods 7 to rotate synchronously, which facilitates the scraping of powder on the inner wall of the forming groove 2.

[0031] The motor 9 is fixed on the ring wall of the punch rod 3 and is located above the rotating cylinder 5. The output end of the motor 9 is provided with a gear 10, which meshes with the tooth groove on the ring wall of the rotating cylinder 5. The motor 9 is connected to an external power source, and the rotation of the rotating cylinder 5 is controlled by the cooperation of the motor 9 and the gear 10.

[0032] Adjustment component 8 includes:

[0033] Positioning rod 11, there are several positioning rods 11, and they are symmetrically fixed on the inner wall of the groove 6 respectively. The abutment rod 7 is movably inserted on the positioning rod 11, and the positioning rod 11 plays the role of positioning.

[0034] A number of springs 12 are provided and are respectively disposed in the groove 6. The two ends of the springs 12 are respectively connected to the inner wall of the groove 6 and the abutment rod 7. The elastic force of the springs 12 is used to make the abutment rod 7 located in the groove 6.

[0035] A movable ring 13 is movably fitted onto the ring wall of the rotating cylinder 5. An electric push rod 14 is fixed to the ring wall of the punch rod 3. The movable ring 13 is engaged with the inclined surface at the top of the contact rod 7, and the output end of the electric push rod 14 is connected to the movable ring 13. The electric push rod 14 is connected to an external power source. The position of the movable ring 13 is controlled by the electric push rod 14, so that the movable ring 13 contacts the inclined surface at the top of the contact rod 7, thereby controlling the movement of the contact rod 7. The bottom end of the movable ring 13 is screwed with a contact rod using a bearing. The ring 15 is designed to abut against the positioning rod 11, so that the abutting rod 7 and the abutting ring 15 move synchronously, thus preventing wear on the inclined surface at the top of the positioning rod 11. The inclined surfaces at the top of several abutting rods 7 are provided with protective pads 16, and the abutting ring 15 and the protective pads 16 are designed to abut against each other, thus protecting the contact surface between the abutting rod 7 and the abutting ring 15 to a certain extent. A protective box 17 is fixed on the ring wall of the punch rod 3, and the motor 9 and the electric push rod 14 are located inside the protective box 17 to prevent dust from affecting the motor 9 and the electric push rod 14.

[0036] When using this utility model, after the punch rod 3 presses the powder into shape through the forming groove 2, the driving component controls the punch rod 3 to rise. At the same time, the external air pump is started, and the powder on the inner wall of the forming groove 2 is blown out of the forming groove 2 through the air jet 4. Then, the electric push rod 14 and the motor 9 are started. The electric push rod 14 drives the moving ring 13 to descend, so that the contact ring 15 contacts the protective pad 16. With the guidance of the positioning rod 11, the contact rod 7 is pressed against the inner wall of the forming groove 2. The motor 9 drives the gear 10 to rotate. The gear 10 drives the rotating cylinder 5 to rotate through the tooth groove. The rotating cylinder 5 drives several contact rods 7 to rotate synchronously, thereby scraping off the powder adhering to the inner wall of the forming groove 2. With the help of the air jet 4, the powder is blown out of the forming groove 2. With the help of the dust suction port 18, the sprayed powder is sucked in and collected to avoid powder pollution of the environment.

[0037] Compared with the prior art, the beneficial effects of this utility model are:

[0038] 1. The rotating cylinder 5 is controlled by the motor 9 and gear 10, and the powder on the inner wall of the forming tank 2 is scraped off by the contact rod 7. The powder is blown out of the forming tank 2 through the air jet 4 to avoid affecting the quality of iron oxidation forming.

[0039] 2. An adjustment component 8 is set up, and the position of the moving ring 13 is controlled by the electric push rod 14 so that the moving ring 13 contacts the abutment rod 7, thereby controlling the movement of the abutment rod 7 and abutting the abutment rod 7 against the inner wall of the forming groove 2 to improve the efficiency of removing powder.

[0040] 3. An abutment ring 15 is provided. During the synchronous rotation of the abutment ring 15 and the abutment rod 7, the wear of the abutment rod 7 is reduced and the service life of the abutment rod 7 is extended.

[0041] 4. Install a protective box 17 to protect the motor 9 and the electric push rod 14 inside, and prevent the motor 9 and the electric push rod 14 from contacting the powder.

[0042] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pressing machine for preventing material adhesion of ferrite cores, comprising an operating table (1); the operating table (1) is provided with a forming groove (2); Its features are, It also includes: Punch rod (3), the punch rod (3) is set above the operating table (1) by an external drive component, and the punch rod (3) is inserted into the forming groove (2). Several air jet grooves (4) are opened through the punch rod (3), and the opening of the air jet grooves (4) is set on the annular surface at the bottom end of the punch rod (3). The several air jet grooves (4) are connected to an external air pump. Rotating cylinder (5), the rotating cylinder (5) is screwed onto the ring wall of the punch rod (3) by means of bearings, and several grooves (6) are opened at equal angles on the ring wall of the rotating cylinder (5); Abutting rod (7), there are several abutting rods (7), and they are respectively set in the groove (6) by adjusting component (8), and the abutting rod (7) is set to abut against the inner wall of the forming groove (2); The motor (9) is fixed on the ring wall of the punch rod (3) and the motor (9) is located above the rotating cylinder (5). The output end of the motor (9) is provided with a gear (10), which meshes with the tooth groove on the ring wall of the rotating cylinder (5). The motor (9) is connected to an external power source.

2. The pressing machine for preventing material adhesion in ferrite cores according to claim 1, characterized in that: The adjustment component (8) includes: Positioning rod (11), there are several positioning rods (11), and they are symmetrically fixed on the inner wall of the groove (6), and the abutment rod (7) is movably inserted on the positioning rod (11); Spring (12), there are several springs (12), and they are respectively set in the groove (6). The two ends of the spring (12) are respectively connected to the inner wall of the groove (6) and the abutment rod (7); The movable ring (13) is movably sleeved on the ring wall of the rotating cylinder (5). The electric push rod (14) is fixed on the ring wall of the punch rod (3). The movable ring (13) and the inclined surface at the top of the contact rod (7) are engaged in contact. The output end of the electric push rod (14) is connected to the movable ring (13). The electric push rod (14) is connected to an external power source.

3. A pressing machine for preventing material adhesion in ferrite cores according to claim 2, characterized in that: The bottom end of the movable ring (13) is screwed with an abutment ring (15) by a bearing, and the abutment ring (15) and the abutment rod (7) are engaged in abutment.

4. A pressing machine for preventing material adhesion in ferrite cores according to claim 3, characterized in that: The inclined surfaces at the top of several abutment rods (7) are provided with protective pads (16), and the abutment rings (15) and protective pads (16) are set to abut against each other.

5. A pressing machine for preventing material adhesion in ferrite cores according to claim 2, characterized in that: A protective box (17) is fixed on the ring wall of the punch rod (3), and the motor (9) and the electric push rod (14) are located inside the protective box (17).

6. A pressing machine for preventing material adhesion in ferrite cores according to claim 1, characterized in that: The operating table (1) is fixed with a dust suction port (18), and the dust suction port (18) is connected to an external dust pump.