Magnetic core forming device

Abstract

The utility model discloses a magnetic core forming device which comprises a machine frame and further comprises a demolding assembly, a pressing assembly and a pressing assembly. The demolding assembly comprises a mold cylinder, a top plate and connecting plates, the mold cylinder is fixedly connected to the rack, the bottom of the top plate is symmetrically and fixedly connected with the connecting plates, the connecting plates are slidably connected to sliding rods, and the sliding rods are fixedly connected with the rack; according to the utility model, the magnetic core blank can be effectively prevented from being damaged during demolding.

Description

Technical Field

[0001] This utility model belongs to the field of magnetic core processing technology, and in particular relates to a magnetic core forming device. Background Technology

[0002] A magnetic core is a sintered magnetic metal oxide composed of various iron oxide mixtures. It is a commonly used component in electronic devices. During the molding process, the powder is first placed into the mold cavity of the master mold. Then, the upper and lower molds extend into the mold cavity and simultaneously extrude the powder, thus extruding the powder in the mold cavity into a magnetic core blank. Usually, after pressing, alignment is required for demolding. However, damage to the magnetic core blank often occurs during demolding. A structure that can avoid damage to the magnetic core blank is proposed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a magnetic core forming device that solves the aforementioned problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a magnetic core forming device, including a frame, and further including: a demolding assembly for demolding the magnetic core blank; the demolding assembly includes a mold cylinder, a top plate, and a connecting plate, the mold cylinder being fixedly connected to the frame, the bottom of the top plate being symmetrically fixedly connected to the connecting plate, the connecting plate being slidably connected to a slide rod, and the slide rod being fixedly connected to the frame.

[0005] Beneficial effects

[0006] This utility model provides a magnetic core forming device, which has the following advantages compared with the prior art:

[0007] The user pours the powder into the mold cylinder. A sealing strip on the top plate prevents the powder from leaking out through the gap between the powder and the mold cylinder. The user then activates the cylinder, pushing the pressure head on the piston rod into the mold cylinder, thus pressing the powder into a magnetic core blank. When the magnetic core blank needs to be removed, the user starts the motor, causing the wheel shaft fixed to its output shaft to rotate synchronously. At this time, the bevel gear B fixed to the wheel shaft rotates synchronously, driving the bevel gear A meshing with it to rotate synchronously. The shaft fixed to the center of bevel gear A rotates synchronously, driving the cam fixed to it to rotate at a constant speed. During rotation, the cam begins to contact the top plate, pushing it upwards. The connecting plate then begins to slide along its connection with the slide rod, compressing the spring fixed to it. The top plate then gradually pushes the magnetic core blank... The die cylinder is ejected; simultaneously, as the axle rotates, the fixedly connected shaft disk rotates synchronously, driving the fixedly connected shaft to rotate at a constant speed. At this time, the push rod connected to the shaft begins to move synchronously, pushing the push plate hinged to it, causing the push plate to begin linear movement along its connection with the limit rod, bringing it closer to the magnetic core blank. When the magnetic core blank is ejected from the die cylinder and is parallel to the opening of the top plate and the die cylinder, the push plate synchronously contacts the magnetic core blank and pushes it to slide, causing the magnetic core blank to begin sliding away from the top plate. During this process, since the contact surface between the push plate and the magnetic core blank is made of a smooth material, interference with the upward sliding of the magnetic core blank on the top plate can be avoided, thus preventing damage to the magnetic core blank. When the magnetic core blank is pushed away from the top plate so that the central axis of the shaft is perpendicular to the bottom surface of the frame, the motor can be reversed to reset the push plate and the top plate, facilitating cyclic pressing. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0009] Figure 2 This is a cross-sectional schematic diagram of the resetting structure of this utility model.

[0010] Figure 3 This is a cross-sectional schematic diagram of the transmission structure of this utility model.

[0011] Figure 4 This is a schematic diagram of the top structure of this utility model.

[0012] Figure reference numerals: Frame 101, demolding assembly 2, mold cylinder 201, top plate 202, connecting plate 203, slide bar 204, spring 205, shaft 206, cam 207, bevel gear A 208, bevel gear B 209, wheel axle 301, shaft disc 302, shaft 303, push rod 304, push plate 305, limit rod 306, motor 307, cylinder 308. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0014] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0015] Please see Figures 1-4 According to one embodiment of the present invention, a magnetic core forming apparatus includes a frame 101 and further includes:

[0016] Demolding assembly 2 is used to demold the magnetic core blank;

[0017] The demolding assembly 2 includes a mold cylinder 201, a top plate 202, and a connecting plate 203. The mold cylinder 201 is fixedly connected to the frame 101. The top plate 202 is symmetrically fixedly connected to the bottom of the connecting plate 203. The connecting plate 203 is slidably connected to the slide rod 204. The slide rod 204 is fixedly connected to the frame 101.

[0018] Regarding the above examples, those skilled in the art should know that the implementation of the above technical solutions is not limited to the specific top plate 202 described in the above embodiments. For example, the top plate 202 is provided with a sealing ring at its frame. The purpose of this setting is to increase its sealing effect and prevent the material from falling out from the gap at its connection.

[0019] For the above examples, those skilled in the art should know that the implementation of the above technical solutions is not limited to the specific slide bar 204 described in the above embodiments. For example, the slide bar 204 is provided with a damping rubber strip. The purpose of this setting is to increase the damping of the sliding of the connecting plate 203, so that the spring 205 can push the connecting plate 203 to slide at a uniform speed when it is reset.

[0020] Specifically, a spring 205 is sleeved on the slide rod 204, one end of the spring 205 is fixedly connected to the top of the slide rod 204, and the other end of the spring 205 is fixedly connected to the connecting plate 203.

[0021] Regarding the above examples, those skilled in the art should know that the implementation of the above technical solutions is not limited to the specific spring 205 described in the above embodiments. For example, the spring 205 can be replaced with other forms of elastic components. The purpose of this arrangement is that springs are prone to deformation after long-term use, and by replacing them with components that are less prone to deformation, their service life can be effectively extended.

[0022] Specifically, a cam 207 is provided below the top plate 202. The cam 207 is fixedly connected to the shaft 206, and the shaft 206 is rotatably connected to the frame 101.

[0023] For the above examples, those skilled in the art should know that the implementation of the above technical solutions is not limited to the specific cam 207 described in the above embodiments. For example, the connection between the cam 207 and the top plate 202 should be made of a smooth material. The purpose of this setting is to reduce the friction generated when it contacts the top plate 202.

[0024] Specifically, a bevel gear A208 is fixedly connected to the shaft 206, and the bevel gear A208 meshes with a bevel gear B209. A wheel axle 301 is fixedly connected to the center of the bevel gear B209.

[0025] For the above examples, those skilled in the art should know that the implementation of the above technical solutions is not limited to the specific bevel gear A208 described in the above embodiments. For example, the diameter of the bevel gear A208 should be larger than that of the bevel gear B209. The purpose of this setting is to facilitate the adjustment of its transmission ratio.

[0026] Specifically, the axle 301 is rotatably connected to the frame 101, a shaft disk 302 is fixedly connected to the axle 301, and a shaft 303 is fixedly connected to the eccentric part of the shaft disk 302.

[0027] For the above examples, those skilled in the art should know that the implementation of the above technical solutions is not limited to the specific push rod 304 described in the above embodiments. For example, the push rod 304 should be made of hard metal. The purpose of this setting is to facilitate the avoidance of its breakage under force.

[0028] Specifically, a push rod 304 is rotatably connected to the shaft 303, the other end of the push rod 304 is hinged to the push plate 305, the push plate 305 is slidably connected to the limiting rod 306, and the limiting rod 306 is fixedly connected to the frame 101.

[0029] For the above examples, those skilled in the art should know that the implementation of the above technical solutions is not limited to the specific push plate 305 described in the above embodiments. For example, the contact surface between the push plate 305 and the magnetic core should be made of a smooth material. The purpose of this setting is to avoid damage to the magnetic core.

[0030] Specifically, one end of the axle 301 is fixedly connected to the output shaft of the motor 307, the motor 307 is fixedly connected to the frame 101, and a cylinder 308 is fixedly connected to the frame 101. The piston rod of the cylinder 308 is provided with a pressure head.

[0031] For the above examples, those skilled in the art should know that when implementing the above technical solutions, it is not limited to the specific motor 307 described in the above embodiments. For example, the motor 307 should be a motor with multiple adjustable speeds. The purpose of this setting is to facilitate the adjustment of the speed of the shaft disk 302 through this setting.

[0032] In this embodiment of the invention, the user pours powder into the mold cylinder 201. Simultaneously, because the top plate 202 is equipped with a sealing strip, the powder is prevented from flowing out along the gap at the connection between it and the mold cylinder 201. The user then activates the cylinder 308, pushing the pressure head on its piston rod into the mold cylinder 201, thereby pressing the powder into a magnetic core blank. When it is necessary to remove the magnetic core blank, the user activates the motor 307, causing the wheel axle 301 fixedly connected to its output shaft to rotate synchronously. At this time, the wheel axle 301 fixedly connected to... The bevel gear B209 rotates synchronously, driving the bevel gear A208 meshing with it to rotate synchronously. At this time, the shaft 206 fixedly connected to the center of the bevel gear A208 rotates synchronously, driving the cam 207 fixedly connected to it to rotate at a constant speed. Thus, the cam 207 begins to contact the top plate 202 during rotation, pushing the top plate 202 to slide upwards. At this time, the connecting plate 203 begins to slide along its connection with the slide rod 204, compressing the spring 205 fixedly connected to it. The top plate 202 then gradually begins to press the magnetic core blank... The material is ejected from the mold cylinder 201; simultaneously, as the axle 301 rotates, the shaft disk 302 fixedly connected to it rotates synchronously, driving the shaft 303 fixedly connected to it to rotate at a uniform speed. At this time, the push rod 304 rotatably connected to the shaft 303 begins to move synchronously, pushing the push plate 305 hinged to it, causing the push plate 305 to begin linear movement along its connection with the limit rod 306, making it begin to approach the magnetic core blank. When the magnetic core blank is ejected from the mold cylinder 201 and is parallel to the opening of the top plate 202 and the mold cylinder 201, the push plate 305 moves synchronously with the mold cylinder 201. The push plate 305 contacts the magnetic core blank and pushes it to slide, causing the magnetic core blank to begin sliding away from the top plate 202. During this process, since the contact surface between the push plate 305 and the magnetic core blank is made of a smooth material, interference with the upward sliding of the magnetic core blank on the top plate 202 can be avoided, thus preventing damage to the magnetic core blank. When the magnetic core blank is pushed away from the top plate 202 so that the central axis of the shaft 206 is perpendicular to the bottom surface of the frame 101, the motor 307 can be reversed to reset the push plate 305 and the top plate 202, so as to facilitate cyclic pressing.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] The term "fixed connection" as used in this application refers to a connection in which parts or components are fixed without any relative movement. This includes both detachable and non-detachable connections.

[0035] (1) Detachable connection: The components are fixed together using screws, splines, wedges, etc. This type of connection can be disassembled during maintenance without damaging the parts. However, the specifications of the connectors used must be correct (such as the length of the bolts, keys, wedges) and properly tightened.

[0036] (2) Non-removable connections: These mainly refer to welding, riveting, and tenon joints. Since disassembly requires forging, sawing, or oxyacetylene cutting for repair or replacement, the parts generally cannot be reused. At the same time, attention should be paid to process quality, technical inspection, and remedial measures (such as correction and polishing) during connection.

[0037] The sliding connection referred to in this application means that the component can slide along a linear trajectory, and the hinge referred to in this application means that the component can rotate along an axial constraint.

[0038] In some cases, the sliding connection and hinge referred to in this application may also be damped, enabling the component to maintain in the desired position.

[0039] 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 magnetic core forming apparatus, comprising a frame (101), characterized in that, Also includes: Demolding assembly (2) is used to demold the magnetic core blank; The demolding assembly (2) includes a mold cylinder (201), a top plate (202), and a connecting plate (203). The mold cylinder (201) is fixedly connected to the frame (101). The bottom of the top plate (202) is symmetrically fixedly connected to the connecting plate (203). The connecting plate (203) is slidably connected to the slide rod (204). The slide rod (204) is fixedly connected to the frame (101).

2. The magnetic core forming apparatus according to claim 1, characterized in that, A spring (205) is fitted on the slide rod (204). One end of the spring (205) is fixedly connected to the top of the slide rod (204), and the other end of the spring (205) is fixedly connected to the connecting plate (203).

3. The magnetic core forming apparatus according to claim 1, characterized in that, A cam (207) is provided below the top plate (202), and the cam (207) is fixedly connected to the shaft (206), which is rotatably connected to the frame (101).

4. The magnetic core forming apparatus according to claim 3, characterized in that, A bevel gear A (208) is fixedly connected to the shaft (206), and the bevel gear A (208) meshes with the bevel gear B (209). A wheel axle (301) is fixedly connected to the center of the bevel gear B (209).

5. The magnetic core forming apparatus according to claim 4, characterized in that, The axle (301) is rotatably connected to the frame (101), and a shaft disc (302) is fixedly connected to the axle (301). A shaft (303) is fixedly connected to the eccentric part of the shaft disc (302).

6. The magnetic core forming apparatus according to claim 5, characterized in that, A push rod (304) is rotatably connected to the shaft (303). The other end of the push rod (304) is hinged to the push plate (305). The push plate (305) is slidably connected to the limiting rod (306). The limiting rod (306) is fixedly connected to the frame (101).

7. The magnetic core forming apparatus according to claim 5, characterized in that, One end of the axle (301) is fixedly connected to the output shaft of the motor (307). The motor (307) is fixedly connected to the frame (101). A cylinder (308) is fixedly connected to the frame (101). A pressure head is provided on the piston rod of the cylinder (308).

8. The magnetic core forming apparatus according to claim 1, characterized in that, The slide bar (204) is provided with a damping rubber strip.

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