Automatic rod threading device for nanocrystalline magnetic core

Abstract

The utility model discloses a kind of nanocrystalline magnetic core automatic rod threading devices, it is related to magnetic core manufacturing technical field, to solve the problem of low efficiency of artificial rod threading. Its core structure includes discharge chute, core rod, top support seat, tail fixed seat and support frame, discharge chute is installed below magnetic core winding machine winding shaft, core rod top abuts top support seat, tail passes through buckle structure and tail fixed seat, tail fixed seat is installed in support frame tail, support frame is connected with magnetic core winding machine magnetic core disc. When working, magnetic core is separated from winding machine into and out of discharge chute, to core rod top by guide structure, the lifting driving element of top support seat drives core rod to lift, magnetic core bypasses support seat and slides into the middle part of core rod to bottom, and circulates to fill. The device replaces manual work, realizes seamless connection of winding-rod threading, improves efficiency, and the structure is simple and suitable for multiple specifications of magnetic core.

Description

Technical Field

[0001] This utility model relates to the field of magnetic core manufacturing technology, and in particular to an automatic rod threading device for nanocrystalline magnetic cores, which is suitable for automatic rod threading after the nanocrystalline magnetic cores are wound, and can be used in conjunction with a magnetic core winding machine to achieve automated connection of the production process. Background Technology

[0002] Magnetic cores made of nanocrystalline soft magnetic materials have excellent electromagnetic properties, including high saturation magnetic induction, high rectangularity ratio, high permeability, low loss and stable performance. In recent years, they have been widely used in high-quality magnetic core products in fields such as switching power supplies, common mode inductors, photovoltaic inverters and ISDN.

[0003] The complete production process of nanocrystalline magnetic cores includes: soft magnetic material roll shearing → magnetic core winding → magnetic core threading → magnetic core heat treatment and horizontal magnetization → performance testing → glue dispensing → casing assembly. Among these, the magnetic core threading process is a key bottleneck affecting production efficiency: In existing technologies, after the nanocrystalline magnetic cores are automatically wound by a winding machine, each core must be manually threaded onto the threading rod of the horizontal magnetization furnace material rack. This process is not only inefficient but also time-consuming, labor-intensive, and has high labor costs and poor operational consistency, making it difficult to meet the needs of large-scale production.

[0004] To address the aforementioned technical challenges, this invention proposes an automatic rod threading device that can be seamlessly integrated with a magnetic core winding machine, enabling automatic rod threading after magnetic core winding and completely replacing manual operation. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies where the insertion of nanocrystalline magnetic cores into rods relies on manual labor and is inefficient, and to provide an automatic rod insertion device for nanocrystalline magnetic cores that is simple in structure, easy to operate, and can realize the automatic connection between magnetic core winding and rod insertion.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] An automatic rod-threading device for nanocrystalline magnetic cores includes a discharge trough, a threading rod, a top support, a tail fixing seat, and a support frame. The discharge trough is installed below the winding shaft of a magnetic core winding machine, and the lower end of the discharge trough corresponds to the top of the threading rod. The top of the threading rod abuts against the top support, and the tail of the threading rod is fixed to the tail fixing seat via a snap-fit ​​structure. The tail fixing seat is installed at the tail of the support frame, and the head of the support frame is connected to the bottom of the magnetic core disk of the magnetic core winding machine. The discharge trough is provided with a guide structure for guiding the nanocrystalline magnetic cores to move towards the threading rod. The top of the threading rod is provided with a guide component for receiving the nanocrystalline magnetic cores. The top support is provided with a lifting drive component that can drive the top of the threading rod to rise and fall, so that the nanocrystalline magnetic cores can slide around the top support and into the middle of the threading rod to the bottom.

[0008] Furthermore, the material guiding structure is an arc-shaped material guiding plate; the front end of the arc-shaped material guiding plate is connected to the side wall of the discharge trough, and the rear end extends out of the tail of the discharge trough. The rear end of the arc-shaped material guiding plate can be freely bent to adjust the width of the discharge port of the discharge trough, so as to adapt to different specifications of nanocrystalline magnetic cores.

[0009] Furthermore, the discharge trough is provided with a tail baffle; the tail baffle is an adjustable structure, and by adjusting the distance between the tail baffle and the discharge port of the trough, it can be adapted to different specifications of nanocrystalline magnetic cores.

[0010] Furthermore, the outer diameter of the core-passing rod is matched with the inner diameter of the nanocrystalline magnetic core to ensure that the nanocrystalline magnetic core can slide smoothly into the core-passing rod.

[0011] Furthermore, the guide component is a guide hook; the guide hook includes an integrally formed long hook and a short hook, the short hook being elastic; the top of the core rod is provided with a recessed embedding space, and the guide hook is fixed to the inner wall of the embedding space by the elasticity of the short hook.

[0012] Furthermore, the lifting drive component is a cylinder; the output end of the cylinder is connected to a component for supporting the core rod, and the cylinder drives the component to rise and fall, thereby driving the top of the core rod to rise and fall, forming a gap for the nanocrystalline magnetic core to pass through the top support seat.

[0013] Furthermore, the support frame is fixedly connected to the bottom of the magnetic core disk of the magnetic core winding machine to ensure the overall stability of the device.

[0014] Furthermore, a circular baffle is provided at the tail of the core-piercing rod; the circular baffle is used to abut against the nanocrystalline magnetic core that slides into the bottom of the core-piercing rod, preventing the nanocrystalline magnetic core from falling off the tail of the core-piercing rod.

[0015] Furthermore, the top support base also includes a fixed base, a fixed support roller, and a movable support roller; the fixed base is installed on the side of the magnetic core winding machine, the fixed support roller and the movable support roller are arranged on the fixed base along the length direction of the core rod, and the fixed support roller supports the lower side of the core rod; the movable support roller is connected to the output end of the cylinder and is driven by the cylinder to extend and retract up and down.

[0016] Furthermore, the tail fixing seat includes a fixing plate and a buckle plate; the fixing plate is fixedly connected to the support frame, and the buckle plate is rotatably connected to the fixing plate. The buckle plate is provided with a snap-fit ​​structure that engages with the tail of the through rod, thereby enabling quick fixing and disassembly of the tail of the through rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] Achieving automated connection: The device can be directly installed with the magnetic core winding machine. After the magnetic core is wound, no manual intervention is required, and it automatically enters the rod threading process, realizing a seamless connection between "winding and rod threading" and greatly shortening the production cycle;

[0019] Reduce labor costs: Completely replace manual rod threading operation, reduce labor input, reduce the labor intensity of workers, and avoid magnetic core damage or positional deviation caused by manual operation, thereby improving product consistency;

[0020] Simple and easy to implement: The core components of the device only include the discharge chute, the core rod, and the top support seat. The overall structure is simple, the manufacturing and installation costs are low, and it can be modified and upgraded based on the existing magnetic core winding machine, making it highly adaptable.

[0021] Adaptable to multiple magnetic core specifications: Through adjustable components such as the material guiding structure and tail baffle, it can be adapted to nanocrystalline magnetic cores with different inner and outer diameters, eliminating the need for frequent equipment replacement and improving equipment utilization. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1: Front view of the automatic rod threading device for nanocrystalline magnetic cores of this utility model;

[0024] Figure 2: Left view of this utility model, showing the structure of the device along the width direction;

[0025] Figure 3: Top view of this utility model, showing the layout of the device along the length direction;

[0026] Figure 4: Top view of the discharge trough of this utility model, with the following components marked;

[0027] Figure 5: Left view of the discharge trough of this utility model;

[0028] Figure 6: Front view of the through-core rod of this utility model;

[0029] Figure 7: Front view of the material guide hook of this utility model;

[0030] Figure 8: Front view of the top support base of this utility model;

[0031] Figure 9: Front view of the tail fixing base of this utility model;

[0032] Figure 10: Schematic diagram of the fit between the through rod and the tail fixing seat of this utility model.

[0033] Components marked: 1. Discharge chute, 2. Core rod, 3. Top support seat, 4. Tail fixing seat, 5. Support frame, 6. Magnetic core winding machine, 7. Nanocrystalline magnetic core, 11. Material chute, 12. Arc-shaped guide plate, 13. Tail baffle, 14. Support plate, 15. Long slot plate, 21. Embedded space, 22. Guide hook, 23. Circular baffle, 31. Fixing seat, 32. Fixed support roller, 33. Movable support roller, 34. Cylinder, 41. Fixing plate, 42. Buckle plate. Detailed Implementation

[0034] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] likeFigure 1-10 As shown, the automatic rod threading device for nanocrystalline magnetic cores provided by this utility model includes a core feeding trough 1, a core threading rod 2, a top support 3, a tail fixing 4, and a support frame 5. The connection relationship and function of each component are as follows:

[0039] 1. Discharge chute 1

[0040] The discharge chute 1 adopts a concave structure and consists of a material chute 11, an arc-shaped guide plate 12, a tail baffle 13, a support plate 14, and a long trough plate 15.

[0041] The material trough 11 is the basic load-bearing component, which is made of stainless steel plate or carbon steel plate. After the two side baffles are cut off at the tail, the tail bottom plate is bent down 90° to form a support edge. The material trough 11 is installed at an angle below the winding shaft of the magnetic core winding machine 6 (the angle of inclination can be adjusted according to the sliding speed of the magnetic core) to ensure that the magnetic core can slide down smoothly by its own weight, avoiding collision damage due to sliding too fast or accumulation due to sliding too slowly.

[0042] The arc-shaped guide plate 12 is a specific implementation of the material guiding structure. Its front end is welded to the inner side wall of the material trough 11, and its rear end extends 5-10mm beyond the tail of the material trough 11. The rear end of the arc-shaped guide plate 12 is not fixed and can be freely bent. By adjusting the bending angle of the rear end, the width of the discharge port of the discharge trough 1 can be flexibly changed, thereby adapting to nanocrystalline magnetic cores 7 with different outer diameter specifications and avoiding the magnetic cores from shifting or getting stuck at the discharge port.

[0043] The support plate 14 is welded to the bottom of the bent edge at the tail of the feed trough 11. Its function is to provide stable support for the tail baffle 13 and prevent the tail baffle 13 from deforming due to force or magnetic core impact.

[0044] The long slot plate 15 is fixedly installed on one side of the tail baffle 13. The tail baffle 13 is fixed to the outer side of the tail baffle of the material trough 11 by the long slot bolts on the long slot plate 15. When the long slot bolts are loosened, the distance between the tail baffle 13 and the outlet of the material trough 11 can be adjusted along the long slot direction to accommodate nanocrystalline magnetic cores 7 of different lengths and specifications, while avoiding the magnetic core from shifting its posture due to excessive spacing during the sliding process.

[0045] 2. Through rod 2

[0046] The core-carrying rod 2 is the load-bearing component of the magnetic core, and its structural design must meet the requirements of smooth sliding and fixation of the magnetic core:

[0047] The outer diameter of the core rod 2 is matched with the inner diameter of the nanocrystalline magnetic core 7 to ensure that the magnetic core can slide in smoothly and without significant shaking after sliding in;

[0048] The core rod 2 has a recessed embedding space 21 at the top for installing a guide component (specifically a guide hook 22). The guide hook 22 includes an integrally formed long hook and a short hook. The short hook is elastic. When the guide hook 22 is embedded in the embedding space 21, the short hook clamps the inner wall of the embedding space 21 through elastic deformation, thereby achieving a stable fixation of the guide hook 22. The long hook extends out of the embedding space 21 to receive the magnetic core that slides down from the discharge trough 1.

[0049] A circular baffle 23 is welded to the tail of the core rod 2. The circular baffle 23 is perpendicular to the axis of the core rod 2 and is used to abut against the nanocrystalline magnetic core 7 that slides into the bottom of the core rod 2 to prevent the magnetic core from falling off the tail of the core rod 2.

[0050] 3. Top support 3

[0051] The top support 3 is used to support the top of the through rod 2 and provides lifting drive. Its structure includes a fixed base 31, a fixed support roller 32, a movable support roller 33, and a cylinder 34 (the specific implementation of the lifting drive component):

[0052] The fixing seat 31 is installed on the side of the magnetic core winding machine 6 and serves as the basic fixing component for the top support seat 3;

[0053] Fixed support rollers 32 and movable support rollers 33 are spaced apart on the fixed base 31 along the length of the through rod 2. The fixed support rollers 32 support the lower side of the through rod 2 and are fixed in position. The movable support rollers 33 are connected to the output end of the cylinder 34.

[0054] The cylinder 34 is fixed to the side of the fixed base 31, and its output end can extend and retract in the vertical direction: when the output end of the cylinder 34 extends, it drives the movable support roller 33 to rise, thereby pushing the top of the core rod 2 to rise; at this time, a gap is formed between the core rod 2 and the fixed support roller 32, allowing the nanocrystalline magnetic core 7 to pass around.

[0055] 4. Tail end mounting bracket 4

[0056] The tail fixing seat 4 is used to fix the tail of the through rod 2, and its structure includes a fixing plate 41 and a buckle plate 42:

[0057] The fixing plate 41 is fixedly connected to the tail of the support frame 5, serving as the fixing base for the tail fixing seat 4;

[0058] The buckle plate 42 is rotatably connected to the fixing plate 41 (through a rotating shaft). The inner side of the buckle plate 42 is provided with a buckle structure that is adapted to the tail of the through rod 2. The tail of the through rod 2 is provided with a corresponding recessed space. During installation, the buckle structure and the outer wall of the recessed space are interlocked to form a fixation of the tail of the through rod 2, which is easy to disassemble.

[0059] 5. Support frame 5

[0060] The support frame 5 is made of high-strength profiles (such as European standard aluminum profiles). Its head is fixedly connected to the bottom of the magnetic core disk of the magnetic core winding machine 6 by bolts, and its tail is fixedly connected to the tail fixing seat 4 to form the overall support frame of the device, ensuring that the device does not shake significantly during operation.

[0061] II. Complete Work Process

[0062] Initial state: The top of the core rod 2 abuts against the fixed support roller 32 and the movable support roller 33 of the top support seat 3, and the tail is fixed by the buckle plate 42 of the tail fixing seat 4; the arc-shaped guide plate 12 and the tail baffle 13 of the discharge chute 1 have been adjusted into place according to the specifications of the nanocrystalline magnetic core 7 to be processed;

[0063] Core transfer: After the nanocrystalline strip is wound into a nanocrystalline magnetic core 7 by the magnetic core winding machine 6, the magnetic core automatically detaches from the winding shaft and enters the material trough 11 of the discharge trough 1 under the action of gravity;

[0064] Material guiding and receiving: The magnetic core slides down along the material groove 11, is guided by the arc-shaped material guide plate 12 to the material outlet of the material groove 11, and then falls into the material guide hook 22 at the top of the core rod 2, and slides along the material guide hook 22 to the top of the core rod 2, and is blocked when it reaches the fixed support roller 32 of the top support seat 3;

[0065] Lifting and sliding: The output end of cylinder 34 extends, driving the movable support roller 33 to rise, and the top of the core rod 2 rises accordingly; at this time, a gap is formed between the core rod 2 and the fixed support roller 32. Under the action of gravity, the magnetic core passes around the fixed support roller 32 and slides along the core rod 2 into the middle to the bottom, where it is blocked and positioned by the circular baffle 23; then cylinder 34 drives the movable support roller 33 to reset, the top of the core rod 2 resets, and abuts against the fixed support roller 32.

[0066] Cycle and full loading: Repeat steps 2-4 until the magnetic cores on the core-threading rod 2 are stacked to the preset height (i.e., the core-threading rod 2 is full); at this time, rotate the buckle plate 42 of the tail fixing seat 4, remove the core-threading rod 2 and replace it with a new core-threading rod 2, and then proceed to the next round of automatic rod threading operation.

[0067] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0068] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic rod threading device for nanocrystalline magnetic cores, characterized in that, The device includes a discharge trough, a core-piercing rod, a top support, a tail fixing seat, and a support frame. The discharge trough is installed below the winding shaft of the magnetic core winding machine, and the lower end of the discharge trough corresponds to the top of the core-piercing rod. The top of the core-piercing rod abuts against the top support, and the tail of the core-piercing rod is fixed to the tail fixing seat through a snap-fit ​​structure. The tail fixing seat is installed at the tail of the support frame, and the head of the support frame is connected to the bottom of the magnetic core disk of the magnetic core winding machine. The discharge trough is provided with a guide structure for guiding the nanocrystalline magnetic core to move towards the core-piercing rod. The top of the core-piercing rod is provided with a guide component for receiving the nanocrystalline magnetic core. The top support is provided with a lifting drive component that can drive the top of the core-piercing rod to rise and fall, so that the nanocrystalline magnetic core can slide around the top support and into the middle of the core-piercing rod to the bottom.

2. The automatic rod threading device for nanocrystalline magnetic cores as described in claim 1, characterized in that, The material guiding structure is an arc-shaped material guiding plate; the front end of the arc-shaped material guiding plate is connected to the side wall of the discharge trough, and the rear end extends out of the tail of the discharge trough. The rear end of the arc-shaped material guiding plate can be freely bent to adjust the width of the discharge port of the discharge trough, so as to adapt to different specifications of nanocrystalline magnetic cores.

3. The automatic rod-threading device for nanocrystalline magnetic cores as described in claim 2, characterized in that, The discharge trough is equipped with a tail baffle; the tail baffle is an adjustable structure, and by adjusting the distance between the tail baffle and the discharge port of the trough, it can be adapted to different specifications of nanocrystalline magnetic cores.

4. The automatic rod-threading device for nanocrystalline magnetic cores as described in claim 1, characterized in that, The outer diameter of the core-passing rod is matched with the inner diameter of the nanocrystalline magnetic core, ensuring that the nanocrystalline magnetic core can slide smoothly into the core-passing rod.

5. The automatic rod-threading device for nanocrystalline magnetic cores as described in claim 1, characterized in that, The material guide is a material guide hook; the material guide hook includes an integrally formed long hook and a short hook, the short hook being elastic; the top of the core rod is provided with a recessed embedding space, and the material guide hook is fixed to the inner wall of the embedding space by the elasticity of the short hook.

6. The automatic rod-threading device for nanocrystalline magnetic cores as described in claim 1, characterized in that, The lifting drive component is a cylinder; the output end of the cylinder is connected to a component for supporting the core rod. The cylinder drives the component to rise and fall, thereby driving the top of the core rod to rise and fall, forming a gap for the nanocrystalline magnetic core to pass through the top support seat.

7. The automatic rod-threading device for nanocrystalline magnetic cores as described in claim 1, characterized in that, The support frame is fixedly connected to the bottom of the magnetic core disk of the magnetic core winding machine to ensure the overall stability of the device.

8. The automatic rod-threading device for nanocrystalline magnetic cores as described in claim 1, characterized in that, The end of the core-piercing rod is provided with a circular baffle; the circular baffle is used to abut against the nanocrystalline magnetic core that slides into the bottom of the core-piercing rod, preventing the nanocrystalline magnetic core from falling off the end of the core-piercing rod.

9. The automatic rod-threading device for nanocrystalline magnetic cores as described in claim 6, characterized in that, The top support base also includes a fixed base, a fixed support roller, and a movable support roller; the fixed base is installed on the side of the magnetic core winding machine, and the fixed support roller and the movable support roller are arranged on the fixed base along the length direction of the core rod, with the fixed support roller supporting the lower side of the core rod; the movable support roller is connected to the output end of the cylinder and is driven by the cylinder to extend and retract up and down.

10. The automatic rod-threading device for nanocrystalline magnetic cores as described in claim 1, characterized in that, The tail fixing seat includes a fixing plate and a buckle plate; the fixing plate is fixedly connected to the support frame, and the buckle plate is rotatably connected to the fixing plate. The buckle plate is provided with a buckle structure that engages with the tail of the through rod, so as to realize the quick fixing and disassembly of the tail of the through rod.

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