Tension emptying frame of transformer winding machine
By employing an arc-shaped pressure block assembly and a joint structure in the tension unloading rack, adaptive adjustment of contact pressure is achieved, solving the tension runaway problem of traditional tension unloading racks under different wire diameters or materials, and improving winding quality and control reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-03
AI Technical Summary
Traditional tension unwinding racks use a single curved surface design, which results in uneven pressure distribution when the wire moves at high speed. This makes it difficult to adapt to different wire diameters or materials, causing tension loss of control and affecting winding quality.
An arc-shaped pressure block assembly is adopted, which includes multiple pressure blocks connected in sequence and rotated through a joint structure. The connecting arm is rotatedly connected to the mounting plate. The driving component drives the arc-shaped pressure block assembly to adjust the angle, thereby achieving adaptive adjustment of the contact pressure distribution with the wire.
The arc-shaped pressure block assembly achieves adaptive adjustment of the arc surface angle when clamping wires of different diameters, ensuring uniform contact pressure and improving the reliability of winding quality and tension control.
Smart Images

Figure CN223967115U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformer technology, specifically to a tension feeding rack for a transformer winding machine. Background Technology
[0002] In transformer winding processes, the tension stability of the tension unloading rack directly affects winding quality and product performance. Traditional tension control systems often employ mechanical friction braking, where the arc-shaped pressure plate of the tension controller presses the conductor against the pulley to achieve tension control. Because the arc-shaped pressure plate uses a single arc angle design, the curvature of the surface in contact with the conductor is fixed, leading to uneven pressure distribution during high-speed movement of the conductor. This easily causes localized stress concentration, especially when handling conductors of different diameters or materials. The single arc surface cannot adapt to the deformation characteristics of the conductor, potentially causing fluctuations in friction between the conductor and the arc surface, thus leading to tension loss of control. Utility Model Content
[0003] Therefore, the technical problem to be solved by this utility model is to overcome the defects of the existing technology, which uses a single arc surface and has difficulty in controlling the tension, so as to provide a high-reliability transformer winding machine tension unloading rack.
[0004] Therefore, this utility model provides a tension feeding rack for a transformer winding machine, comprising: a frame, equipped with a pulley and a tension controller; the tension controller includes an arc-shaped pressure block assembly, a mounting plate and a driving component, wherein the arc-shaped pressure block assembly is disposed on the mounting plate and has an arc-shaped surface corresponding to the pulley, the arc-shaped pressure block assembly includes a plurality of pressure blocks connected in sequence, and adjacent pressure blocks are rotatably connected by a joint structure, wherein the pressure blocks located at both ends of the arc-shaped surface of the arc-shaped pressure block assembly are provided with connecting arms, the connecting arms being rotatably connected to the mounting plate through a rotating shaft, and the driving component being connected to the mounting plate for driving the arc-shaped pressure block assembly to move toward or away from the pulley.
[0005] The joint structure includes a joint adjacent to one of the pressure blocks, and a joint cavity located in the other adjacent pressure block and adapted to connect with the joint.
[0006] The mounting plate is formed with a movable groove for the connecting arm to swing.
[0007] The driving component is a cylinder.
[0008] The technical solution of this utility model has the following advantages:
[0009] 1. The transformer winding machine tension feeding rack provided by this utility model includes a tension controller comprising an arc-shaped pressure block assembly, a mounting plate, and a driving component. The arc-shaped pressure block assembly comprises multiple pressure blocks connected in sequence, with adjacent pressure blocks rotatably connected by a joint structure. The pressure blocks located at both ends of the arc surface of the arc-shaped pressure block assembly are provided with connecting arms, which are rotatably connected to the mounting plate via a rotating shaft. This allows the two connecting arms to open or close at a certain angle. When pressing wires of different diameters, the angle of the arc surface of the arc-shaped pressure block assembly can adaptively adjust and change to ensure uniform pressure distribution in contact with the wire, thereby ensuring the winding quality.
[0010] 2. The transformer winding machine tension feeding rack provided by this utility model has a joint structure including a joint of one of the adjacent pressure blocks and a joint cavity located on the other adjacent pressure block and adapted to the joint. The joint can rotate within the joint cavity, which has the advantage of simple structure. Attached Figure Description
[0011] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the tension unloading rack for the transformer winding machine according to this utility model;
[0013] Figure 2 This is a schematic diagram of the structure of the pulley and tension controller;
[0014] Figure 3 This is a schematic diagram of the arc-shaped pressure block assembly;
[0015] Figure 4 This is a schematic diagram of the exploded structure of the arc-shaped pressure block assembly.
[0016] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Pulley; 3. Tension controller; 4. Arc-shaped pressure block assembly; 5. Mounting plate; 6. Drive component; 7. Arc-shaped surface; 8. Pressure block; 9. Connecting arm; 10. Rotating shaft; 11. Joint; 12. Joint cavity; 13. Movable groove; 14. Wire. Detailed Implementation
[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0020] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0021] Example
[0022] This embodiment provides a tension unloading rack for a transformer winding machine, such as... Figure 1 As shown, it includes a frame 1, a pulley 2, and a tension controller 3.
[0023] Tension controller 3, such as Figure 1 and Figure 2 As shown, it includes an arc-shaped pressure block assembly 4, a mounting plate 5, and a driving component 6. The arc-shaped pressure block assembly 4 is disposed on the mounting plate 5 and has an arc-shaped surface 7 corresponding to the pulley 2, as shown. Figure 3 and Figure 4As shown, the arc-shaped pressure block assembly 4 includes multiple pressure blocks 8 connected in sequence. Adjacent pressure blocks 8 are rotatably connected by a joint structure. The joint structure includes a joint 11 between adjacent pressure blocks 8 and a joint cavity 12 located in adjacent pressure blocks 8 and adapted to connect with the joint 11. Each pressure block 8 located at both ends of the arc-shaped surface 7 of the arc-shaped pressure block assembly 4 is provided with a connecting arm 9. The connecting arm 9 is rotatably connected to the mounting plate 5 via a rotating shaft 10. The mounting plate 5 is formed with a movable groove 13 for the connecting arm 9 to swing. The driving component 6 is connected to the mounting plate 5 and is used to drive the arc-shaped pressure block assembly 4 to move towards or away from the pulley 2. In this embodiment, the driving component 6 is a cylinder.
[0024] The transformer winding machine tension feeding rack provided by this utility model includes an arc-shaped pressure block assembly 4 comprising multiple pressure blocks 8 connected in sequence. Adjacent pressure blocks 8 are rotatably connected by a joint structure. The pressure blocks 8 located at both ends of the arc surface 7 of the arc-shaped pressure block assembly 4 are provided with connecting arms 9. The connecting arms 9 are rotatably connected to the mounting plate 5 through a rotating shaft 10. In this way, the two connecting arms 9 can open or close at a certain angle. When pressing wires 14 of different diameters, the angle of the arc surface 7 of the arc-shaped pressure block assembly 4 can be adaptively adjusted to ensure uniform pressure distribution in contact with the wire, thereby ensuring the winding quality.
[0025] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A tension unloading rack for a transformer winding machine, characterized in that, include: The frame (1) is equipped with a pulley (2) and a tension controller (3); The tension controller (3) includes an arc-shaped pressure block assembly (4), a mounting plate (5), and a drive component (6). The arc-shaped pressure block assembly (4) is disposed on the mounting plate (5) and has an arc-shaped surface (7) corresponding to the pulley (2). The arc-shaped pressure block assembly (4) includes a plurality of pressure blocks (8) connected in sequence. Adjacent pressure blocks (8) are rotatably connected by a joint structure. The pressure blocks (8) located at both ends of the arc-shaped surface (7) of the arc-shaped pressure block assembly (4) are provided with connecting arms (9). The connecting arms (9) are rotatably connected to the mounting plate (5) through a rotating shaft (10). The drive component (6) is connected to the mounting plate (5) and is used to drive the arc-shaped pressure block assembly (4) to move toward or away from the pulley (2).
2. The transformer winding machine tension unloading rack according to claim 1, characterized in that, The joint structure includes a joint (11) of one of the adjacent pressure blocks (8) and a joint cavity (12) located in the other adjacent pressure block (8) and adapted to be connected to the joint (11).
3. The transformer winding machine tension unloading rack according to claim 1 or 2, characterized in that, The mounting plate (5) is formed with a movable groove (13) for the connecting arm (9) to swing.
4. The transformer winding machine tension unloading rack according to claim 1, characterized in that, The driving component (6) is a cylinder.