Flat coil forming device
By designing a flat coil forming device that includes a positioning seat, guide rail, limiting structure, rotating shaft, motor, pressing block and pushing device, the problem of insufficient winding density of flat coils is solved, and the coil density and transformer performance are improved.
Patent Information
- Application Number
- CN202520282581.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-21
AI Technical Summary
In the existing technology, it is difficult to ensure tightness during the winding of flat coils, resulting in a loose internal structure of the coil, which affects the stability of current transmission and the performance of the transformer.
A forming device is adopted, which includes a positioning seat, guide rail, limiting structure, rotating shaft, motor, pressing block, pushing device and cutting tool. The rotating shaft drives the lead wire to wind and the pushing device improves the winding tightness. After the positioning is released by the limiting structure, the coil is removed.
This effectively improves the winding tightness of flat coils, reduces axial height, and enhances current transmission stability and overall transformer performance.
Smart Images
Figure CN223797255U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of transformer manufacturing technology, specifically relating to a flat coil forming device. Background Technology
[0002] As a core component of transformers, the coil plays a crucial role. An innovative flat coil has emerged in the current technology. Its unique manufacturing method involves carefully winding flat wire to create a flat shape. This unique structure significantly reduces the axial height of the coil, a characteristic that greatly facilitates its rational arrangement in many space-constrained and special locations.
[0003] However, the current manufacturing method has significant drawbacks. During the winding process, it is difficult to reliably and effectively ensure the tightness of the winding between the flat wires. This results in a loose internal coil structure, potentially affecting the stability and efficiency of current transmission, and also having a potentially adverse impact on the overall performance and reliability of the transformer. In applications with high coil performance requirements, this insufficient winding tightness becomes increasingly prominent, becoming a key bottleneck restricting the widespread application and performance improvement of this type of flat coil. Utility Model Content
[0004] To address the aforementioned technical problems, this utility model provides a flat coil forming device to solve the problem of insufficient winding tightness of existing flat coils. This flat coil forming device can effectively improve the winding tightness of flat coils and reduce their axial height.
[0005] This utility model discloses a flat coil forming device for winding coils of leads. It includes a positioning seat, a guide rail, a limiting structure, a rotating shaft, a motor, a pressing block, a first pushing device, a tool holder, a cutting tool, and a second pushing device. The positioning seat is slidably disposed on the guide rail and temporarily positioned by the limiting structure. One end of the rotating shaft abuts against the positioning seat, and the other end passes through the pressing block and is connected to the motor. One end of the rotating shaft is provided with a locking slot for engaging leads. The pressing block is axially movable and sleeved on the rotating shaft. The first pushing device is connected to the pressing block. The tool holder is fixed to the positioning seat, and the cutting tool is spaced apart from the tool holder. The second pushing device is connected to the cutting tool.
[0006] Furthermore, the first pushing device and the second pushing device are selected from hydraulic cylinders.
[0007] Furthermore, the limiting structure includes a limiting rod and a limiting cylinder. The limiting rod is connected to the limiting cylinder. When the limiting cylinder drives the limiting rod to extend, the limiting rod restricts the displacement of the positioning seat on the guide rail.
[0008] When this flat coil forming device performs the flat coil winding operation, it first passes an elliptical or circular cross-section lead wire between the cutter and the cutter holder, and then clamps one end of the lead wire onto the bayonet of the rotating shaft. The rotating shaft drives the lead wire to wind, and then the first pushing device drives the pressing block to press the wound coil axially, thereby effectively improving the tightness of the winding and reducing its axial height. After pressing, the limiting structure releases the limitation on the positioning seat, moves the positioning seat, and removes the coil from the rotating shaft. Attached Figure Description
[0009] 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.
[0010] Figure 1 This is a schematic diagram of a flat coil forming device. Detailed Implementation
[0011] This utility model discloses a flat coil forming device, which can effectively improve the winding tightness of flat coils and reduce their axial height.
[0012] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, what is described is only a part of the embodiments of this utility model, and not all of the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0013] See Figure 1As shown, this utility model discloses a flat coil forming device for coil winding of lead wires. It includes a positioning seat 9, a guide rail 11, a limiting structure 10, a rotating shaft 8, a motor 1, a pressing block 7, a first pushing device 6, a tool holder 4, a cutting tool 3, and a second pushing device 1. The positioning seat 9 is slidably disposed on the guide rail 11 and temporarily positioned by the limiting structure 10. One end of the rotating shaft 8 abuts against the positioning seat 9, and the other end of the rotating shaft 8 passes through the pressing block 7 and is connected to the motor 1. One end of the rotating shaft 8 is provided with a bayonet 5 for clamping the lead wire. The pressing block 7 is axially movable and sleeved on the rotating shaft 8. The first pushing device 6 is connected to the pressing block 7. The tool holder 4 is fixed on the positioning seat 9. The cutting tool 3 is spaced apart from the tool holder 4. The second pushing device 1 is connected to the cutting tool 3.
[0014] The first pushing device 6 and the second pushing device 1 are selected from hydraulic cylinders.
[0015] The limiting structure 10 includes a limiting rod and a limiting cylinder. The limiting rod is connected to the limiting cylinder. When the limiting cylinder drives the limiting rod to push out, the limiting rod restricts the displacement of the positioning seat 9 on the guide rail 11.
[0016] When performing the flat coil winding operation, this flat coil forming device first passes an elliptical or circular cross-section lead wire between the cutter 3 and the cutter holder 4, and then clamps one end of the lead wire onto the bayonet 5 of the rotating shaft 8. The rotating shaft 8 drives the lead wire to wind. Then, the first pushing device 6 drives the pressing block 7 to press the wound coil axially, thereby effectively improving the tightness of the winding and reducing its axial height. After pressing, the limiting structure 10 releases the limitation on the positioning seat 9, moves the positioning seat 9, and removes the coil from the rotating shaft 8.
[0017] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.
Claims
1. A flat coil forming apparatus characterized by comprising: The application discloses a coil winding device for lead wire, which comprises a positioning seat, a guide rail, a limiting structure, a rotating shaft, a motor, a pressing block, a first pushing device, a cutter seat, a cutter and a second pushing device.
2. A flat coil forming device according to claim 1, wherein The first pushing device and the second pushing device are selected from hydraulic cylinders.
3. A flat coil forming device according to claim 1, wherein The limiting structure comprises a limiting rod and a limiting cylinder, and the limiting rod is connected with the limiting cylinder. When the limiting cylinder drives the limiting rod to push out, the limiting rod limits the displacement of the positioning seat on the guide rail.