Framework winding device for assembling transformer

By using a servo motor-driven continuously variable transmission system and an extrusion structure, the problems of high cost and poor adaptability of winding devices are solved, achieving uniform winding and cost savings.

CN121565677APending Publication Date: 2026-02-24ZHUZHOU YIFAN TECH CO LTD
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Patent Information

Application Number
CN202511987793.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-26
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

In the existing technology, the winding device requires a reciprocating device with uniform motion to assist in winding, which increases the cost and makes it difficult to adapt to the winding needs of copper wires of different thicknesses.

Method used

The continuously variable transmission system driven by a servo motor achieves uniform winding of copper wire through a combination of limiting blocks, insert blocks, rotating rods, gears, and reciprocating threaded rods. The transmission ratio of the transmission is adjusted by extrusion and holding structures to adapt to the winding requirements of different copper wire sizes.

Benefits of technology

While achieving uniform winding, it reduces the cost of the winding device, can adapt to the winding requirements of different copper wire thicknesses, and improves winding efficiency.

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Abstract

The invention provides a framework winding device for transformer assembly, and relates to the technical field of framework winding, the framework winding device comprises a bottom plate, a sliding piece is mounted on the side, away from a vertical plate, of the upper surface of the bottom plate, a clamping piece is mounted on the upper surface of the sliding piece, a reciprocating piece is mounted on the upper side of the vertical plate, and a moving piece is mounted on the lower side of the reciprocating piece; when the thickness of a copper wire introduced into a wire inlet groove formed in the moving block is changed, the extrusion force of the copper wire on an extrusion structure composed of an arc-shaped plate and an extrusion rod is different, the different extrusion force of the extrusion structure enables the extrusion force formed by the abutting structure on the pressed structure to be different, and therefore the copper wire can be conveniently and rapidly extruded. The first inclined block is used for pushing the second inclined block, the pushing force of the pressed rod to the hydraulic pushing end of the stepless gearbox is changed, the transmission ratio of the stepless gearbox is adjusted, the rotating speed of the reciprocating threaded rod is adjusted, the moving speed of the moving block is changed, and the winding requirements of different sizes are met.
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Description

Technical Field

[0001] This application relates to the technical field of bobbin winding, and particularly to a bobbin winding device for transformer assembly. Background Technology

[0002] Wire-wound bobbin is a precision winding process widely used in the manufacturing of electronic components, transformers, inductors, etc. Its core is to wind wires (such as copper wire, enameled wire, etc.) on a carrier with a bobbin structure according to specific rules to form the required coil or winding. The bobbin is usually made of insulating materials (such as plastic, ceramic or composite materials) and has preset slots, pins or fixing structures to ensure the neatness, mechanical stability and electrical performance of the winding.

[0003] To ensure uniform winding, existing technologies require the addition of a reciprocating device to assist in winding, which increases winding costs. Furthermore, when winding copper wires of different thicknesses, parameters such as the speed ratio of the reciprocating device need to be adjusted, further increasing the required winding equipment. Summary of the Invention

[0004] This application is made in view of the above-mentioned problems, and its object is to provide a bobbin winding device for transformer assembly to solve the problems mentioned in the background art. To achieve the above objectives, the present invention provides the following technical solution: a bobbin winding device for transformer assembly, comprising a base plate, a vertical plate mounted on one side of the upper surface of the base plate, a driving component mounted on the side of the vertical plate away from the center of the base plate, a sliding component mounted on the side of the upper surface of the base plate away from the vertical plate, a clamping component mounted on the upper surface of the sliding component, the clamping component contacting the driving component, a reciprocating component mounted on the upper surface of the vertical plate, a continuously variable transmission (CVT) disposed between the clamping component and the reciprocating component, and two rotating shafts of the CVT being connected to the clamping component and the reciprocating component respectively, a moving component mounted on the lower side of the reciprocating component, the moving component being connected to the hydraulic push end of the CVT.

[0005] Furthermore, the driving component includes a servo motor, which is installed on the side of the vertical plate away from the center of the base plate. The output end of the servo motor passes through the vertical plate and is fitted with a limiting block. A limiting groove is provided on the side of the limiting block away from the servo motor, and the clamping component is inserted into the limiting groove.

[0006] Furthermore, the clamping member includes a clamping plate, which is mounted on the upper surface of the sliding member. The continuously variable transmission (CVT) is mounted on the upper surface of the clamping plate. A circular hole is opened on the side of the clamping plate, and a bearing is installed in the circular hole. A rotating rod is installed in the bearing. An insert is installed on the side of the rotating rod facing the limiting cylinder. The end of the insert away from the rotating rod is inserted into the limiting groove. A linkage is installed on the end of the rotating rod away from the limiting block. The linkage is connected to the rotating shaft of the CVT.

[0007] Furthermore, the sliding member includes a slide rail, which is mounted on the upper surface of the base plate. A slider is slidably connected inside the slide rail, and a support plate is mounted on the upper surface of the slider. The clamping member is mounted on the upper surface of the support plate.

[0008] Furthermore, the linkage includes a first gear, which is mounted on the annular surface of the rotating rod. A second gear meshes with the upper side of the annular surface of the first gear, and the second gear is connected to the lower rotating shaft of the continuously variable transmission.

[0009] Furthermore, the reciprocating component includes a movable rod, and a movable hole is provided on the side of the vertical plate facing the clamping plate. The movable rod is slidably connected in the movable hole. A reciprocating threaded rod is installed on the side of the movable rod facing the clamping plate. The reciprocating threaded rod is connected to the upper rotating shaft of the continuously variable transmission. A reciprocating threaded block is threadedly connected to the annular surface of the reciprocating threaded rod. The movable component is installed on the reciprocating threaded block.

[0010] Furthermore, the moving component includes a moving block, which is installed on the lower side of the reciprocating threaded block. The moving block has an inlet hole, and a through hole is formed at the bottom of the inlet hole. An extrusion component is installed in the through hole. A support component is provided on the lower side of the moving block. The support component is connected to the hydraulic push end of the continuously variable transmission, and the support component is in contact with the extrusion component.

[0011] Furthermore, the extrusion includes an arc-shaped plate disposed within the inlet hole, and an extrusion rod is mounted on the lower surface of the arc-shaped plate. The end of the extrusion rod away from the arc-shaped plate passes through the through hole and contacts the abutment.

[0012] Furthermore, the supporting member includes a supporting block, and a moving groove is provided on the side of the vertical plate facing the center of the bottom plate. The supporting block is slidably connected in the moving groove. A supporting plate is installed on the side of the supporting block facing out of the moving groove. The pressing rod is in sliding contact with the supporting plate. A pressure receiving member is installed at the bottom of the moving groove. The pressure receiving member is in contact with the supporting plate. The end of the pressure receiving member away from the supporting plate is connected to the hydraulic push end of the continuously variable transmission.

[0013] Furthermore, the pressure-receiving component includes a pressure-receiving cylinder, which is installed at the top of the moving groove. A pressure-receiving hole is opened on the upper side of the annular surface of the pressure-receiving cylinder. A first inclined block is inserted into the pressure-receiving hole, and the upper end of the first inclined block is in contact with the abutment block. A pressure-receiving rod is inserted into the side of the pressure-receiving cylinder away from the vertical plate. The pressure-receiving rod is connected to the hydraulic push end of the continuously variable transmission. A second inclined block is installed at one end of the pressure-receiving rod inside the pressure-receiving cylinder, and the second inclined block is in sliding contact with the first inclined block.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This application utilizes the cooperation of a limiting block and a plug block. When the servo motor drives the limiting block to rotate, the rotating block drives the rotating rod and the first gear to rotate. The first gear drives the continuously variable transmission (CVT) internal gear to rotate through the second gear. Subsequently, the CVT internal gear drives the reciprocating threaded rod to rotate. The rotation of the reciprocating threaded rod then drives the moving block mounted on the reciprocating threaded block to move, thereby achieving uniform winding and saving on the use of the drive device.

[0015] This application utilizes a supporting structure consisting of a supporting block and a supporting plate, and a pressure-receiving structure consisting of a pressure-receiving cylinder, a pressure-receiving rod, a first inclined block, and a second inclined block, installed on a vertical plate. When the thickness of the copper wire passing through the inlet groove on the moving block changes, the pressure exerted by the copper wire on the extrusion structure consisting of an arc-shaped plate and an extrusion rod varies. The different extrusion forces of the extrusion structure result in different extrusion distances formed by the supporting structure on the pressure-receiving structure. The first inclined block pushes the second inclined block, which in turn changes the driving force on the hydraulic push end of the continuously variable transmission (CVT) through the pressure-receiving rod, thereby adjusting the transmission ratio of the CVT and thus adjusting the rotational speed of the reciprocating threaded rod. This, in turn, changes the moving speed of the moving block, thereby meeting the requirements for winding wires of different sizes. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this drawing 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 drawing. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the device of the present invention; Figure 2 This is a schematic diagram of the assembly of the reciprocating threaded block and the moving block with the reciprocating threaded rod of the device of the present invention; Figure 3 This is a schematic diagram of the assembly of the supporting block and supporting plate with the pressure cylinder of the device of the present invention; Figure 4 This is an assembly diagram of the first and second inclined blocks of the device of the present invention; Figure 5 This is a schematic diagram of the assembly of the insertion block and the limiting block of the device of the present invention; Figure 6 This is a schematic diagram of the assembly of the first gear, bearing, and rotating rod of the device of the present invention.

[0018] Explanation of reference numerals: 1. Base plate; 2. Limiting block; 3. Servo motor; 4. Moving rod; 5. Vertical plate; 6. Reciprocating threaded block; 7. Reciprocating threaded rod; 8. Continuously variable transmission; 9. First gear; 10. Second gear; 11. Bearing; 12. Clamping plate; 13. Support plate; 14. Slide rail; 15. Moving block; 16. Arc plate; 17. Pressing rod; 18. Supporting block; 19. Supporting plate; 20. First inclined block; 21. Pressure cylinder; 22. Second inclined block; 23. Pressure rod; 24. Insertion block; 25. Rotating rod.

[0019] The purpose, features, and advantages of this accompanying drawing will be further explained in conjunction with the embodiments and with reference to the accompanying drawing. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following description and illustration are provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0021] Obviously, the following description is merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios without any inventive effort. Furthermore, it is understood that although the effort involved in such development may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0022] Unless otherwise specified, the terms "comprising" and "including" as used in this application can be open-ended or closed-ended. For example, "comprising" and "including" can mean that other components not listed may also be included, or that only the listed components may be included.

[0023] Unless otherwise specified, the term "or" is inclusive in this application. For example, the phrase "A or B" means "A, B, or both A and B". More specifically, the condition "A or B" is satisfied by any of the following conditions: A is true (or exists) and B is false (or does not exist); A is false (or does not exist) and B is true (or exists); or both A and B are true (or exist).

[0024] Terminology explanation: such as Figures 1 to 6 As shown, a bobbin winding device for transformer assembly includes a base plate 1. A vertical plate 5 is mounted on one side of the upper surface of the base plate 1. A servo motor 3 is mounted on the side of the vertical plate 5 away from the center of the base plate 1. The output end of the servo motor 3 passes through the vertical plate 5 and is fitted with a limiting block 2. A limiting groove is formed on the side of the limiting block 2 away from the servo motor 3. A slide rail 14 is mounted on the side of the upper surface of the base plate 1 away from the vertical plate 5. A slider is slidably connected in the slide rail 14. A support plate 13 is mounted on the upper surface of the slider. A clamping device is mounted on the upper surface of the support plate 13. A continuously variable transmission 8 is mounted on the upper surface of the clamping plate 12. A circular hole is opened on the side of the clamping plate 12, and a bearing 11 is installed in the circular hole. A rotating rod 25 is installed in the bearing 11. The surface of the rotating rod 25 is provided with an anti-slip groove to prevent the winding skeleton from sliding. An insert block 24 is installed on the side of the rotating rod 25 facing the limiting cylinder. The end of the insert block 24 away from the rotating rod 25 is inserted into the limiting groove. When the servo motor 3 is started, the limiting block 2 rotates. The rotation of the limiting block 2 drives the rotating rod 25 to rotate through the insert block 24.

[0025] A first gear 9 is installed at the end of the rotating rod 25 away from the limiting block 2. A second gear 10 meshes with the upper side of the annular surface of the first gear 9. The second gear 10 is connected to the lower shaft of the continuously variable transmission 8. A movable hole is opened on the side of the vertical plate 5 facing the clamping plate 12. A movable rod 4 is slidably connected in the movable hole. A reciprocating threaded rod 7 is installed on the side of the movable rod 4 facing the clamping plate 12. The reciprocating threaded rod 7 is connected to the upper shaft of the continuously variable transmission 8. A reciprocating threaded block 6 is threadedly connected to the annular surface of the reciprocating threaded rod 7. A movable block 15 is installed at the lower end of the reciprocating threaded block 6. A wire inlet hole is opened on the movable block 15. After the rotating rod 25 rotates, it drives the first gear 9 to rotate. The rotation of the first gear 9 drives the second gear 10 to rotate. The second gear 10 drives the reciprocating threaded rod 7 to rotate through the continuously variable transmission 8. The rotation of the reciprocating threaded rod 7 drives the reciprocating block to move back and forth on the reciprocating threaded rod 7, so that the wire inlet hole opened on the movable block 15 can be evenly fed and wound.

[0026] A through hole is provided at the bottom of the inlet hole, and an arc-shaped plate 16 is installed inside the through hole. A pressing rod 17 is installed on the lower surface of the arc-shaped plate 16. The end of the pressing rod 17 away from the arc-shaped plate 16 passes through the through hole. A moving groove is provided on the side of the vertical plate 5 facing the center of the bottom plate 1. A supporting block 18 is slidably connected in the moving groove. A supporting plate 19 is installed on the side of the supporting block 18 facing out of the moving groove. The supporting plate 19 slides in contact with the pressing rod 17. A pressure-receiving cylinder 21 is installed at the bottom of the groove. A pressure-receiving hole is opened on the upper side of the annular surface of the pressure-receiving cylinder 21. A first inclined block 20 is inserted into the pressure-receiving hole. The upper end of the first inclined block 20 is in contact with the abutment block 18. A pressure-receiving rod 23 is inserted on the side of the pressure-receiving cylinder 21 away from the vertical plate 5. The pressure-receiving rod 23 is connected to the hydraulic push end of the continuously variable transmission 8. A second inclined block 22 is installed at one end of the pressure-receiving rod 23 inside the pressure-receiving cylinder 21. The second inclined block 22 is in sliding contact with the first inclined block 20.

[0027] By installing a supporting structure consisting of a supporting block 18 and a supporting plate 19 on the vertical plate 5, and a pressure-bearing structure consisting of a pressure-bearing cylinder 21, a pressure-bearing rod 23, a first inclined block 20, and a second inclined block 22, when the thickness of the copper wire passing through the inlet slot on the moving block 15 changes, the pressure exerted by the copper wire on the extrusion structure consisting of the arc plate 16 and the extrusion rod 17 is different. The different extrusion forces of the extrusion structure cause the supporting structure to exert different extrusion forces on the pressure-bearing structure. The first inclined block 20 pushes the second inclined block 22, and then the pressure rod 23 changes the driving force on the hydraulic push end of the continuously variable transmission 8, thereby adjusting the transmission ratio of the continuously variable transmission 8, thereby adjusting the speed of the reciprocating threaded rod 7, and thus changing the moving speed of the moving block 15 to meet the winding requirements of different sizes.

[0028] Working principle: First, the slider controls the support plate 13 to move away from the vertical plate 5. Then, the skeleton to be wound is inserted into the rotating rod 25. The anti-slip groove on the surface of the rotating rod 25 limits the wire entry of the winding skeleton. Then, the slider is used to make the rotating rod 25 contact the limiting block 2, and the insert block 24 is inserted into the limiting groove. Then, the servo motor 3 is started, which can drive the winding skeleton to rotate through the limiting block 2, the insert block 24 and the rotating rod 25, and perform winding.

[0029] When the rotating rod 25 rotates, it drives the lower shaft of the continuously variable transmission 8 to rotate through the first gear 9 and the second gear 10. After the lower shaft of the continuously variable transmission 8 rotates, it drives the reciprocating threaded rod 7 to rotate through the upper shaft of the continuously variable transmission 8. The rotation of the reciprocating threaded rod 7 drives the reciprocating threaded block 6 and the moving block 15 to move back and forth, thereby achieving uniform winding of the winding skeleton.

[0030] When winding copper wires of different thicknesses, the copper wires exert different compressive forces on the arc plate 16 and the extrusion rod 17. Consequently, the extrusion rod 17 exerts different downward pressures on the support plate 19. After the downward pressure of the support plate 19 changes, the downward pressure of the support block 18 on the first inclined block 20 changes. The first inclined block 20 pushes the second inclined block 22, which in turn changes the hydraulic push force on the continuously variable transmission 8 via the pressure rod 23. This adjusts the transmission ratio of the continuously variable transmission 8, thereby adjusting the rotational speed of the reciprocating threaded rod 7, and thus changing the moving speed of the moving block 15 to meet the requirements of winding wires of different sizes.

[0031] It should be noted that this application is not limited to the above-described embodiments. The above embodiments are merely examples, and any embodiments with the same structure and effect as the technical concept within the scope of this application are included in the technical scope of this application. Furthermore, various modifications that can be conceived by those skilled in the art to the embodiments, and other ways of constructing by combining some of the constituent elements of the embodiments, without departing from the spirit of this application, are also included in the scope of this application.

Claims

1. A bobbin winding device for transformer assembly, comprising a base plate (1), characterized in that, A vertical plate (5) is installed on one side of the upper surface of the base plate (1). A driving component is installed on the side of the vertical plate (5) away from the center of the base plate (1). A sliding component is installed on the side of the upper surface of the base plate (1) away from the vertical plate (5). A clamping component is installed on the upper surface of the sliding component. The clamping component is in contact with the driving component. A reciprocating component is installed on the upper side of the vertical plate (5). A continuously variable transmission (CVT) (8) is provided between the clamping component and the reciprocating component. The two rotating shafts of the CVT (8) are connected to the clamping component and the reciprocating component respectively. A moving component is installed on the lower side of the reciprocating component. The moving component is connected to the hydraulic push end of the CVT (8).

2. The bobbin winding device for transformer assembly according to claim 1, characterized in that, The driving component includes a servo motor (3), which is installed on the side of the vertical plate (5) away from the center of the bottom plate (1). The output end of the servo motor (3) passes through the vertical plate (5) and is equipped with a limiting block (2). A limiting groove is provided on the side of the limiting block (2) away from the servo motor (3), and the clamping component is inserted into the limiting groove.

3. The bobbin winding device for transformer assembly according to claim 2, characterized in that, The clamping component includes a clamping plate (12), which is mounted on the upper surface of the sliding component. The continuously variable transmission (CVT) (8) is mounted on the upper surface of the clamping plate (12). A circular hole is provided on the side of the clamping plate (12), and a bearing (11) is installed in the circular hole. A rotating rod (25) is installed in the bearing (11). A plug (24) is installed on the side of the rotating rod (25) facing the limiting cylinder. The end of the plug (24) away from the rotating rod (25) is inserted into the limiting groove. A linkage component is installed on the end of the rotating rod (25) away from the limiting block (2), and the linkage component is connected to the rotating shaft of the continuously variable transmission (8).

4. A bobbin winding device for transformer assembly according to claim 3, characterized in that, The sliding member includes a slide rail (14), which is mounted on the upper surface of the base plate (1). A slider is slidably connected inside the slide rail (14), and a support plate (13) is mounted on the upper surface of the slider. The clamping member is mounted on the upper surface of the support plate (13).

5. A bobbin winding device for transformer assembly according to claim 3, characterized in that, The linkage includes a first gear (9), which is mounted on the annular surface of the rotating rod (25). A second gear (10) meshes on the upper side of the annular surface of the first gear (9), and the second gear (10) is connected to the lower shaft of the continuously variable transmission (8).

6. A bobbin winding device for transformer assembly according to claim 5, characterized in that, The reciprocating component includes a moving rod (4). The vertical plate (5) has a moving hole on the side facing the clamping plate (12). The moving rod (4) is slidably connected in the moving hole. A reciprocating threaded rod (7) is installed on the side of the moving rod (4) facing the clamping plate (12). The reciprocating threaded rod (7) is connected to the upper shaft of the continuously variable transmission (8). A reciprocating threaded block (6) is threaded on the annular surface of the reciprocating threaded rod (7). The moving component is installed on the reciprocating threaded block (6).

7. A bobbin winding device for transformer assembly according to claim 6, characterized in that, The moving part includes a moving block (15), which is installed on the lower side of the reciprocating threaded block (6). The moving block (15) has an inlet hole, and a through hole is provided at the bottom of the inlet hole. An extrusion member is installed in the through hole. A support member is provided on the lower side of the moving block (15). The support member is connected to the hydraulic push end of the continuously variable transmission (8), and the support member is in contact with the extrusion member.

8. A bobbin winding device for transformer assembly according to claim 7, characterized in that, The extrusion includes an arc-shaped plate (16) disposed in the inlet hole, and an extrusion rod (17) is mounted on the lower surface of the arc-shaped plate (16). One end of the extrusion rod (17) away from the arc-shaped plate (16) passes through the through hole and contacts the abutment.

9. A bobbin winding device for transformer assembly according to claim 8, characterized in that, The supporting member includes a supporting block (18). A moving groove is provided on the side of the vertical plate (5) facing the center of the bottom plate (1). The supporting block (18) is slidably connected in the moving groove. A supporting plate (19) is installed on the side of the supporting block (18) facing the outside of the moving groove. The pressing rod (17) is in sliding contact with the supporting plate (19). A pressure-bearing member is installed at the bottom of the moving groove. The pressure-bearing member is in contact with the supporting plate (19). The end of the pressure-bearing member away from the supporting plate (19) is connected to the hydraulic push end of the continuously variable transmission (8).

10. A bobbin winding device for transformer assembly according to claim 8, characterized in that, The pressure-bearing component includes a pressure-bearing cylinder (21), which is installed at the top of the moving groove. A pressure-bearing hole is provided on the upper side of the annular surface of the pressure-bearing cylinder (21). A first inclined block (20) is inserted into the pressure-bearing hole. The upper end of the first inclined block (20) is in contact with the abutment block (18). A pressure-bearing rod (23) is inserted on the side of the pressure-bearing cylinder (21) away from the vertical plate (5). The pressure-bearing rod (23) is connected to the hydraulic push end of the continuously variable transmission (8). A second inclined block (22) is installed at one end of the pressure-bearing rod (23) inside the pressure-bearing cylinder (21). The second inclined block (22) is in sliding contact with the first inclined block (20).