High-stability magnetic core machining die

Abstract

The utility model discloses a high-stability magnetic core processing die, which belongs to the technical field of magnetic core processing, and comprises a rack, the upper surface of the rack is movably connected with an upper die, the upper surface of the rack is fixedly connected with a lower die, the bottom end of the left side of the rack is fixedly connected with a motor, and the output end of the motor is fixedly connected with a rotating shaft; the rotating shaft is rotationally arranged in the rack, a baffle is fixedly connected to the upper surface of the rack, a connecting rod is fixedly connected to the surface of the baffle, meanwhile, the connecting rod is connected with a push plate in a sliding and penetrating mode, and a cleaning assembly is fixedly connected to the lower surface of the push plate; the end, close to the baffle, of the upper surface of the rack is fixedly connected with a fixing plate. According to the high-stability magnetic core machining mold, through the arrangement of the push plate and the cleaning assembly, residues of chippings on the surface of the mold are reduced, flaws caused by embedding of the chippings are avoided, the appearance quality of a magnetic core is greatly improved, and meanwhile the size of a mold cavity is kept within the design tolerance range all the time.

Description

Technical Field

[0001] This utility model relates to the field of magnetic core processing technology, specifically a high-stability magnetic core processing mold. Background Technology

[0002] Magnetic cores are core components in electronic circuits and power electronic devices, and their performance directly affects the efficiency, stability, and application range of the equipment. Magnetic core processing refers to a series of processes performed on magnetic cores made of magnetic materials to obtain the dimensions, shape, and performance that meet design requirements. When using magnetic core processing molds, multiple strip magnetic cores can be processed efficiently at once, greatly improving efficiency. At the same time, the uniformity of the finished magnetic products is ensured, reducing the probability of quality problems such as geometric center misalignment and lowering the defect rate. However, if the demolding process is not smooth enough and damage occurs to the magnetic core, such as cracks or deformation, this not only increases production costs but also reduces production efficiency.

[0003] To overcome the above-mentioned defects, the prior art (Chinese patent application number 202123441357.8, application date 2021-12-30) provides a convenient demolding die for stamping metal shells of thermos bottles. This convenient demolding die includes a bottom module; a stamping groove is formed at the upper end of the bottom module; an upper module is positioned above the bottom module; a stamping die is fixedly installed at the bottom end of the upper module; the stamping die is engaged with the stamping groove; a pouring pipe is pre-reserved on the inner side of the upper module; a cutting blade is installed at the bottom end of the upper module; and an overflow groove is formed at the upper end of the bottom module. This convenient demolding die for stamping metal shells of thermos bottles only requires cutting off excess edges with the cutting blade, and the metal shell is ejected through the demolding assembly, thus achieving convenient demolding of the thermos bottle metal shell.

[0004] During the frequent opening and closing of the mold and the molding and demolding of the magnetic core, there is continuous friction between the components, which will cause the surface material to wear down gradually and generate debris. At the same time, the wear will be more obvious under high-speed and high-pressure processing conditions. During the use of the above-mentioned device, the surface of the lower mold cannot be cleaned, which will cause debris to embed in the surface of the magnetic core, resulting in surface defects such as pits and dents in the magnetic core. At the same time, the dimensions of the magnetic core after molding will deviate from the design dimensions. Utility Model Content

[0005] The purpose of this invention is to provide a high-stability magnetic core processing mold to solve the problem mentioned in the background art that the lower mold surface cannot be cleaned, resulting in debris embedding into the magnetic core surface, causing surface defects such as pits and dents in the magnetic core, and causing the dimensions of the formed magnetic core to deviate from the design dimensions.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-stability magnetic core processing mold, comprising a frame, an upper mold movably connected to the upper surface of the frame, a lower mold fixedly connected to the upper surface of the frame, and a motor fixedly connected to the bottom left side of the frame, with a rotating shaft fixedly connected to the output end of the motor; the rotating shaft is rotatably disposed inside the frame, and a baffle is fixedly connected to the upper surface of the frame, with a connecting rod fixedly connected to the surface of the baffle, and a push plate slidably connected to the connecting rod, with a cleaning component fixedly connected to the lower surface of the push plate; a fixing plate is fixedly connected to the upper surface of the frame near the baffle, and a fixing rod is fixedly connected to the surface of the fixing plate, with an electrostatic eliminator slidably connected to the fixing rod, the electrostatic eliminator symmetrically distributed about the center of the frame, and the outer end of the electrostatic eliminator near the inner wall of the push plate being inclined.

[0007] Preferably, a limiting rod is fixedly connected to the inner wall of the frame, and the limiting rod is slidably connected to the base plate. The lower surface of the base plate is fixed to the upper end of the sliding rod, and a drive shaft is rotatably provided inside the frame.

[0008] Preferably, both the surface of the drive shaft and the surface of the rotating shaft are fitted with belts, and the drive shafts are symmetrically distributed about the center of the rotating shaft. Both the surface of the rotating shaft and the surface of the drive shaft are fixedly connected with eccentric wheels, and the lower end of a sliding rod is slidably connected to the surface of the eccentric wheel. The eccentric wheel is rotatably disposed inside the frame.

[0009] Preferably, a push rod is fixedly connected to the upper surface of the base plate, and the push rods are evenly distributed on the upper surface of the base plate, with the upper end of the push rod fitting against the inner wall of the lower mold.

[0010] Preferably, a fixing block is fixedly connected to the upper surface of the frame, and a movable shaft is rotatably arranged inside the fixing block, and belts are sleeved and connected to both the surface of the movable shaft and the surface of the transmission shaft.

[0011] Preferably, the push plate is threadedly connected to the surface of the movable shaft, and a rolling wheel is fixedly connected to the inner wall of the push plate, with the surface of the rolling wheel in contact with the surface of the static elimination rod.

[0012] Preferably, the front end of the spring is fixedly connected to the surface of the fixing plate, and the rear end of the spring is fixedly connected to the static elimination rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the high-stability magnetic core processing mold adopts a novel structural design, the specific details of which are as follows:

[0014] (1) The high-stability magnetic core processing mold reduces the residue of debris on the mold surface by setting the push plate and cleaning components, avoids defects caused by debris embedding, greatly improves the appearance quality of the magnetic core, and keeps the mold cavity size within the design tolerance range.

[0015] Furthermore, this helps the magnetic core to form a more uniform and stable internal structure during the molding process, meeting the stringent requirements of electronic devices for the consistency of magnetic core performance.

[0016] (2) The high-stability magnetic core processing mold reduces the static electricity generated on the surface of the device by setting static elimination rods and fixing rods, effectively avoids the adsorption of impurities on the magnetic core surface, ensures that the magnetic core surface is always clean, and improves the appearance quality and surface performance of the magnetic core.

[0017] Furthermore, the static eliminator promptly eliminates static electricity, preventing electrostatic discharge and protecting the internal structural integrity of the magnetic core, thereby improving the yield and service life of the magnetic core.

[0018] (3) The high-stability magnetic core processing mold reduces the friction between the push plate and the lower mold when the push plate slides through the setting of the limiting rod and connecting rod, and at the same time avoids the push plate from shifting during the sliding process, thus extending the service life of the push plate and the lower mold and reducing the maintenance and replacement cost of the lower mold. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the connection structure between the frame and the upper mold of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the lower mold and the frame of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the baffle and the fixing rod of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the base plate and the top rod of this utility model;

[0023] Figure 5 This is a schematic diagram of the connection structure between the moving shaft and the transmission shaft of this utility model;

[0024] Figure 6 This is a schematic diagram of the frame and fixing plate structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the connection structure between the static eliminator rod and the spring of this utility model.

[0026] In the diagram: 1. Frame; 2. Upper mold; 3. Lower mold; 4. Motor; 5. Rotating shaft; 6. Eccentric wheel; 7. Sliding rod; 8. Base plate; 9. Top rod; 10. Limiting rod; 11. Drive shaft; 12. Moving shaft; 13. Fixing block; 14. Rolling wheel; 15. Push plate; 16. Baffle; 17. Connecting rod; 18. Cleaning assembly; 19. Fixing plate; 20. Fixing rod; 21. Static eliminator; 22. Spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: By using the limiting rod 10, connecting rod 17, and frame 1, shaking during operation is prevented, thus improving the stability of the device. Figures 1-3 As shown: It includes a frame 1, an upper mold 2 movably connected to the upper surface of the frame 1, and a lower mold 3 fixedly connected to the upper surface of the frame 1. A motor 4 is fixedly connected to the bottom left side of the frame 1, and a rotating shaft 5 is fixedly connected to the output end of the motor 4. The rotating shaft 5 is rotatably disposed inside the frame 1. A baffle 16 is fixedly connected to the upper surface of the frame 1, and a connecting rod 17 is fixedly connected to the surface of the baffle 16. A push plate 15 is slidably connected to the connecting rod 17, and a cleaning component 18 is fixedly connected to the lower surface of the push plate 15. A fixing plate 19 is fixedly connected to the upper surface of the frame 1 near the baffle 16, and a fixing rod 20 is fixedly connected to the surface of the fixing plate 19. An antistatic rod 21 is slidably connected to the fixing rod 20. The antistatic rod 21 is symmetrically distributed about the center of the frame 1, and the outer end of the antistatic rod 21 near the inner wall of the push plate 15 is inclined.

[0029] The operator controls the frame 1 to ensure a tight fit between the upper mold 2 and the lower mold 3. The pre-treated raw material is then fed to the inlet at the top of the upper mold 2 via a conveying device. Under the influence of gravity and injection molding machine pressure, the material flows along the pipe into the cavity formed by the upper mold 2 and the lower mold 3. Following preset injection parameters, after the material is filled, a holding pressure stage is initiated. This stage compensates for volume changes caused by material cooling and shrinkage, ensuring the dimensional accuracy and surface quality of the magnetic core. This achieves the injection molding of the magnetic core. Furthermore, the use of limiting rods 10 and connecting rods 17 reduces friction between the push plate 15 and the lower mold 3 during sliding, preventing the push plate 15 from shifting during sliding. This extends the service life of both the push plate 15 and the lower mold 3, and reduces the maintenance and replacement costs of the lower mold 3.

[0030] In Example 2, unlike Example 1, the eccentric wheel 6, push rod 9, and base plate 8 are used to achieve rapid demolding of the magnetic core, improving the working efficiency of the device. Figures 4-5 As shown: A limiting rod 10 is fixedly connected to the inner wall of the frame 1, and the limiting rod 10 is slidably connected to the base plate 8. The lower surface of the base plate 8 is fixed to the upper end of the sliding rod 7. Meanwhile, a drive shaft 11 is rotatably installed inside the frame 1. Belts are sleeved and connected to both the surface of the drive shaft 11 and the surface of the rotating shaft 5. The drive shaft 11 is symmetrically distributed about the center of the rotating shaft 5. An eccentric wheel 6 is fixedly connected to both the surface of the rotating shaft 5 and the surface of the drive shaft 11. The lower end of the sliding rod 7 is slidably connected to the surface of the eccentric wheel 6. The eccentric wheel 6 is rotatably installed inside the frame 1. A push rod 9 is fixedly connected to the upper surface of the base plate 8. The push rods 9 are evenly distributed on the upper surface of the base plate 8, and the upper end of the push rod 9 is in contact with the inner wall of the lower mold 3.

[0031] The operator controls the motor 4, causing the output shaft 5 of the motor 4 to rotate inside the frame 1. A belt drives the transmission shaft 11 to rotate inside the frame 1. As the transmission shaft 11 and the shaft 5 rotate, the eccentric wheel 6 on the surface rotates, causing the sliding rod 7 on the surface of the eccentric wheel 6 to push the base plate 8 against the limit rod 10. This allows the ejector pin 9 to quickly demold the magnetic core after injection molding inside the lower mold 3, reducing production interruptions caused by demolding failures and further improving overall production efficiency. Simultaneously, the evenly spaced ejector pins 9 ensure uniform force distribution across the magnetic core, preventing deformation and cracking due to uneven force, thus guaranteeing the integrity and quality of the magnetic core and improving the product yield.

[0032] In Example 3, unlike Example 2, the push plate 15, static eliminator 21, and spring 22 are used to improve the appearance quality and surface performance of the magnetic core, while also increasing the yield and lifespan of the magnetic core. Figures 6-7As shown: A fixed block 13 is fixedly connected to the upper surface of the frame 1, and a movable shaft 12 is rotatably arranged inside the fixed block 13. Belts are sleeved and connected to both the surface of the movable shaft 12 and the surface of the transmission shaft 11. A push plate 15 is threadedly connected to the surface of the movable shaft 12, and a rolling wheel 14 is fixedly connected to the inner wall of the push plate 15. The surface of the rolling wheel 14 is in contact with the surface of the static elimination rod 21. The front end of a spring 22 is fixedly connected to the surface of the fixed plate 19, and the rear end of the spring 22 is fixedly connected to the static elimination rod 21.

[0033] When the drive shaft 11 rotates via a belt, it drives the movable shaft 12 to rotate inside the fixed block 13. A push plate 15 is threaded onto the surface of the movable shaft 12. As the movable shaft 12 rotates, the push plate 15 slides on the surface of the connecting rod 17, and the cleaning component 18 at the lower end of the push plate 15 slides on the upper surface of the lower mold 3. This reduces the residue of debris on the surface of the lower mold 3 and avoids defects caused by embedded debris. At the same time, a rolling wheel 14 is installed on the inner wall of the push plate 15, and the surface of the rolling wheel 14 is in contact with the surface of the static elimination rod 21. When the push plate 15 moves, the rolling wheel 14 pushes the static elimination rod 21 to slide on the surface of the fixed rod 20. Meanwhile, the spring 22 extends towards the surface of the static elimination rod 21, so that the static elimination rod 21 is in contact with the surface of the lower mold 3. This ensures that the distance between the static elimination rod 21 and the surface of the lower mold 3 is kept within the optimal range. This ensures that the static electricity on the surface of the lower mold 3 can be continuously and effectively neutralized when the device is working, providing a low-static-current stable environment for the molding of the magnetic core.

[0034] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-stability magnetic core processing mold, comprising a frame (1), wherein an upper mold (2) is movably connected to the upper surface of the frame (1), and a lower mold (3) is fixedly connected to the upper surface of the frame (1), and a motor (4) is fixedly connected to the bottom left side of the frame (1), and a rotating shaft (5) is fixedly connected to the output end of the motor (4); Its features are: The rotating shaft (5) is rotatably disposed inside the frame (1), and a baffle (16) is fixedly connected to the upper surface of the frame (1), and a connecting rod (17) is fixedly connected to the surface of the baffle (16). Meanwhile, the connecting rod (17) is slidably connected to a push plate (15), and a cleaning component (18) is fixedly connected to the lower surface of the push plate (15). A fixing plate (19) is fixedly connected to the upper surface of the frame (1), and a fixing rod (20) is fixedly connected to one end of the fixing plate (19) near the baffle (16). The fixing rod (20) is slidably connected to an electrostatic eliminator (21). The electrostatic eliminator (21) is symmetrically distributed about the center of the frame (1), and the outer end of the electrostatic eliminator (21) near the inner wall of the push plate (15) is inclined.

2. The high-stability magnetic core processing mold according to claim 1, characterized in that: The inner wall of the frame (1) is fixedly connected to a limiting rod (10), and the limiting rod (10) is slidably connected to a base plate (8). The lower surface of the base plate (8) is fixed to the upper end of the sliding rod (7), and a transmission shaft (11) is rotatably installed inside the frame (1).

3. The high-stability magnetic core processing mold according to claim 2, characterized in that: Both the surface of the drive shaft (11) and the surface of the rotating shaft (5) are fitted with belts, and the drive shaft (11) is symmetrically distributed about the center of the rotating shaft (5). Both the surface of the rotating shaft (5) and the surface of the drive shaft (11) are fixedly connected with eccentric wheels (6). The lower end of a sliding rod (7) is slidably connected to the surface of the eccentric wheel (6), and the eccentric wheel (6) is rotatably disposed inside the frame (1).

4. The high-stability magnetic core processing mold according to claim 3, characterized in that: A top rod (9) is fixedly connected to the upper surface of the base plate (8), and the top rods (9) are evenly distributed on the upper surface of the base plate (8), and the upper end of the top rod (9) is in contact with the inner wall of the lower mold (3).

5. A high-stability magnetic core processing mold according to claim 4, characterized in that: A fixed block (13) is fixedly connected to the upper surface of the frame (1), and a movable shaft (12) is rotatably arranged inside the fixed block (13). A belt is sleeved and connected to both the surface of the movable shaft (12) and the surface of the transmission shaft (11).

6. The high-stability magnetic core processing mold according to claim 5, characterized in that: The surface of the movable shaft (12) is threadedly connected to the push plate (15), and the inner wall of the push plate (15) is fixedly connected to the roller (14), and the surface of the roller (14) is in contact with the surface of the static elimination rod (21).

7. A high-stability magnetic core processing mold according to claim 6, characterized in that: The front end of the spring (22) is fixedly connected to the surface of the fixing plate (19), and the rear end of the spring (22) is fixedly connected to the static elimination rod (21).

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