Self-resetting transformer core winding mold
By using the hinged rod and arc plate structure of the self-resetting transformer core winding mold, the problems of cumbersome operation and difficult demolding of traditional molds are solved, realizing automatic mold reset and simplified demolding, improving winding efficiency and coil protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU SURUN MACHINERY
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional coil winding molds are cumbersome to operate, difficult to demold, and prone to damaging the coil, resulting in low winding efficiency.
Design a self-resetting transformer core winding mold, which adopts a hinged rod, arc plate and torsion spring structure, so that the mold can automatically shrink after winding is completed by pull ring, simplifying the demolding process, and the synchronous movement of the arc plate ensures that the coil can be smoothly removed.
It achieves automatic mold reset and simplified demolding, improves winding efficiency, avoids coil damage, and makes operation more convenient.
Smart Images
Figure CN224501681U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of tooling design and manufacturing technology, specifically relating to a self-resetting transformer core winding mold. Background Technology
[0002] Coil winding dies are integrated core equipment in transformer manufacturing and a core process in power equipment manufacturing. Their precision directly affects the electrical performance, mechanical strength, and lifespan of the transformer. Traditional coil winding dies mostly adopt a split structure, specifically used to wind conductors into specific shapes, turns, and layers on the die, and then remove the coil from the die and install it onto the iron core.
[0003] However, existing winding dies generally have some defects, such as the need to manually disassemble the die components and reassemble them after each coil is wound, which is cumbersome and time-consuming. They are also difficult to demold and may damage the coil during demolding. This phenomenon has become a problem that needs to be solved by people in this field. Utility Model Content
[0004] The purpose of this invention is to provide a self-resetting transformer core winding mold for existing devices, in order to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a self-resetting transformer core winding mold, including a frame and a mold center shaft.
[0006] This utility model further describes that the frame is U-shaped, with through slots at the upper end of the U-shape. Each through slot has two fixed blocks, one above the other. Each fixed block has a through hole at its top. The mold's central shaft is located in the middle of the frame. The outer ring of the mold's central shaft is evenly hinged with hinge rods, hinge rod two, hinge rod three, hinge rod four, and hinge rod five. The tops of hinge rods, hinge rod two, hinge rod three, hinge rod four, and hinge rod five are all hinged with arc-shaped plates and are distributed in a circular structure.
[0007] This utility model further illustrates that the two non-adjacent arc plates are both hinged with telescopic rods, and the other end of the telescopic rod is provided with a through hole two. A bearing is connected to a pin two in the through hole two, and the other end of the telescopic rod is fixed in the middle of the upper and lower fixed blocks by the pin two.
[0008] The present invention further explains that a bearing is connected to a pin in the through hole one inside the fixed block. The pin passes through the upper and lower fixed blocks. A torsion spring is wound around the outer ring of the pin. Support leg one and support leg two are fixed at the upper and lower ends of the torsion spring. Support leg one at one end of the torsion spring is attached to the side wall of the telescopic rod, and support leg two at the other end is attached to the inner wall of the through groove.
[0009] This utility model further illustrates that a tension spring is welded to one end of the central shaft of the mold, and a pull ring is fixed to the top of the tension spring.
[0010] This utility model further explains that arc-shaped blocks one and two are welded to both sides of the second hinge rod, arc-shaped block one is welded between the second hinge rod and the hinge rod, arc-shaped block three is welded between the third hinge rod and the fifth hinge rod, and arc-shaped block two is welded between the fourth hinge rod and the second hinge rod, which can enable the five sets of arc-shaped plates to move synchronously.
[0011] This utility model further explains that the arc-shaped plate and the hinge rod are evenly distributed in five groups around the central axis of the mold, and each end of the central axis of the mold is hinged with five groups of hinge rods, which can make the overall structure more stable when moving.
[0012] Compared with the prior art, the beneficial effects achieved by this utility model are: This utility model,
[0013] By incorporating a hinge rod, the overall mold can be axially reduced, making demolding easier. By incorporating an arc block, the array of arc plates can maintain synchronous movement. By incorporating a torsion spring, the mold can spring back to its original position after the pull ring is released during demolding. Attached Figure Description
[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the left side of this utility model;
[0017] Figure 3 This is the utility model Figure 2 Enlarged view of a portion of point A in the middle;
[0018] Figure 4 This is a radially scaled-down schematic diagram of the arc-shaped plate of this utility model;
[0019] In the diagram: 1. Frame; 2. Tension spring; 21. Pull ring;
[0020] 3. Mold central shaft; 4. Telescopic rod; 5. Through groove; 6. Torsion spring; 61. Support leg one; 62. Support leg two;
[0021] 7. Curved plate; 8. Hinge rod; 81. Hinge rod two; 82. Hinge rod three; 83. Hinge rod four; 84. Hinge rod five;
[0022] 9. Arc-shaped block one; 91. Arc-shaped block two; 92. Arc-shaped block three; 10. Pin one; 11. Fixing block; 12. Through hole one; 13. Through hole two; 14. Pin two. Detailed Implementation
[0023] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0024] Please see Figure 1-4 The present invention provides a technical solution: a self-resetting transformer core winding mold, comprising a frame 1 and a mold central shaft 3. The frame 1 is U-shaped, and the upper end of the U-shape of the frame 1 has through slots 5. Each through slot 5 has two fixing blocks 11 fixed inside, and each fixing block 11 has a through hole 12 at the top. The mold central shaft 3 is located in the middle of the frame 1. The outer ring of the mold central shaft 3 is evenly hinged with hinge rods 8, 81, 82, 83, and 84. The top of each of the hinge rods 8, 81, 82, 83, and 84 is hinged with an arc plate 7, which is distributed in a circular structure.
[0025] Two non-adjacent arc plates 7 are hinged with telescopic rods 4. The other end of the telescopic rod 4 is provided with a through hole 13. A bearing is connected to a pin 14 in the through hole 13. The other end of the telescopic rod 4 is fixed to the middle of the upper and lower fixed blocks 11 by the pin 14.
[0026] A bearing is connected to a pin 10 in the through hole 12 inside the fixing block 11. The pin 10 passes through the upper and lower fixing blocks 11. A torsion spring 6 is wound around the outer ring of the pin 10. Support legs 1 61 and support legs 2 62 are fixed at the upper and lower ends of the torsion spring 6. One end of the torsion spring 6, support leg 1 61, is attached to the side wall of the telescopic rod 4, and the other end, support leg 2 62, is attached to the inner wall of the through groove 5.
[0027] A tension spring 2 is welded to one end of the mold center shaft 3, and a pull ring 21 is fixed to the top of the tension spring 2.
[0028] Arc-shaped blocks 91 and 91 are welded to both sides of hinge rod 2 81. Arc-shaped block 91 is welded between hinge rod 2 81 and hinge rod 8. Arc-shaped block 92 is welded between hinge rod 3 82 and hinge rod 5 84. Arc-shaped block 91 is welded between hinge rod 4 83 and hinge rod 2 81, which can enable the five sets of arc plates 7 to move synchronously.
[0029] Five sets of arc-shaped plates 7 and hinge rods 8 are evenly distributed around the central axis 3 of the mold. Five sets of hinge rods 8 are hinged to each end of the central axis 3 of the mold, which makes the overall structure more stable when moving.
[0030] Working principle: When the winding is completed, pull the pull ring 21. The mold center shaft 3 and the arc plate 7 move in the direction of the tension spring 2. The telescopic rod 4 swings along the axis of the through hole 13 in the direction of the tension spring 2. At this time, the support leg 61 of the torsion spring 6 blocks one side of the telescopic rod 4, giving resistance to the telescopic rod 4. When the telescopic rod 4 is stretched to its maximum length, the arc plate 7 fixed on the telescopic rod 4 no longer moves forward, while the mold center shaft 3 continues to move forward. The hinge rod 8, which is hinged to the mold center shaft 3, swings along the axis of the mold center shaft 3 in the opposite direction to the stretching. Arc blocks 9 and 91 are fixed on both sides of the hinge rod 81, so that the array of arc plates 7 keep moving synchronously. The array of arc plates 7 moves backward relative to the mold center shaft 3. When the hinge rod 8 swings backward at an angle of 25°, all the arc plates 7 will come into contact, so that the diameter of the entire mold becomes smaller. At this time, the wound coil can be taken out directly without scratching the coil and is easy to demold.
[0031] After removing the coil, loosen the pull ring 21. The array of arc plates 7 will collectively return to their original shape under the combined action of the support leg 61 of the torsion spring 6 and the arc block 9, thus achieving a self-resetting function and making it more convenient for the next winding.
[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model, 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.
[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A self-resetting transformer core winding mold, comprising a frame (1) and a mold central shaft (3), characterized in that: The frame (1) is U-shaped. The upper end of the U-shape of the frame (1) has through slots (5) facing each other. Each through slot (5) has two fixed blocks (11) fixed inside. Each fixed block (11) has a through hole (12) at the top. The mold central shaft (3) is located in the middle of the frame (1). The outer ring of the mold central shaft (3) is evenly hinged with hinge rods (8), hinge rod 2 (81), hinge rod 3 (82), hinge rod 4 (83), and hinge rod 5 (84). The top of each of the hinge rods (8), hinge rod 2 (81), hinge rod 3 (82), hinge rod 4 (83), and hinge rod 5 (84) is hinged with an arc plate (7).
2. The self-resetting transformer core winding mold according to claim 1, characterized in that: The two non-adjacent arc plates (7) are hinged with telescopic rods (4). The other end of the telescopic rod (4) is provided with a through hole (13). The through hole (13) is connected to a bearing with a pin (14). The other end of the telescopic rod (4) is fixed between the upper and lower fixing blocks (11) by the pin (14).
3. The self-resetting transformer core winding mold according to claim 2, characterized in that: A bearing is connected to a pin (10) in the through hole (12) inside the fixed block (11). The pin (10) passes through the upper and lower fixed blocks (11). A torsion spring (6) is wound around the outer ring of the pin (10). The upper and lower ends of the torsion spring (6) are fixed with a support leg (61) and a support leg (62). One end of the torsion spring (6), the support leg (61), is attached to the side wall of the telescopic rod (4), and the other end, the support leg (62), is attached to the inner wall of the through groove (5).
4. The self-resetting transformer core winding mold according to claim 3, characterized in that: A tension spring (2) is welded to one end of the central shaft (3) of the mold, and a pull ring (21) is fixed to the top of the tension spring (2).
5. A self-resetting transformer core winding mold according to claim 4, characterized in that: Arc-shaped blocks 1 (9) and 2 (91) are welded on both sides of the second hinge rod (81). Arc-shaped block 1 (9) is welded between the second hinge rod (81) and the hinge rod (8). Arc-shaped block 3 (92) is welded between the third hinge rod (82) and the fifth hinge rod (84). Arc-shaped block 2 (91) is welded between the fourth hinge rod (83) and the second hinge rod (81), so that the five sets of arc plates (7) can move synchronously.
6. A self-resetting transformer core winding mold according to claim 5, characterized in that: The arc plate (7) and the hinge rod (8) are evenly distributed in five sets around the central axis (3) of the mold, and each end of the central axis (3) of the mold is hinged with five sets of hinge rods (8).