A simulated pre-stretching device for enameled wire winding

Abstract

This utility model relates to the technical field of pre-stretching devices, and discloses a simulated pre-stretching device for enameled wire winding. It includes a base plate, a platform fixedly connected to the top of the base plate, load-bearing components on the left and right sides of the top of the platform, a stretching component between the load-bearing components, and a tension adjustment component at the bottom of the stretching component. The tension adjustment component includes a fixed plate, fixed columns fixedly connected to the left and right sides of the top of the fixed plate, a movable plate on the top of the fixed plate, and multiple buffer springs on the top of the movable plate. Threaded rods are threaded to the four corners inside the fixed plate. In this utility model, when matching the tension threshold of enameled wires of different diameters, the length of the buffer springs is adjusted by rotating the threaded rods. During pre-stretching, the buffer springs absorb tension fluctuations through deformation, avoiding cracking of the enamel layer caused by rigid stretching. This solves the problem of uneven tension easily damaging the wire, improving the pre-stretching quality and yield of the enameled wire.

Description

Technical Field

[0001] This utility model relates to the technical field of pre-stretching devices, and in particular to a pre-stretching device for simulating winding of enameled wire. Background Technology

[0002] In the winding process of electrical equipment such as motors and transformers, enameled wires need to undergo pre-stretching treatment to eliminate internal stress, match winding tension, and ensure that the coils are tightly and neatly wound without damage to the insulation layer. The development of an enameled wire simulated winding pre-stretching device aims to achieve precise control of the enameled wire stretching process through mechanical structure optimization. Its core lies in solving problems such as lagging tension adjustment and insufficient equipment compatibility in traditional processes, thereby improving the pre-treatment accuracy of enameled wires before winding and providing quality assurance for subsequent precision winding processes. The technical background of this device focuses on how to achieve dynamic tension adaptation, reduce wire wear, and improve operational convenience through mechanical innovation to meet the production needs of miniaturization and high reliability of modern electrical components.

[0003] Existing enameled wire pre-stretching devices mostly employ a mechanical structure with screw drive and fixed rollers. The tension is controlled by manually rotating the screw to adjust the roller spacing. The guiding mechanism relies on fixed-angle limiting grooves or rigid rollers to restrict the radial movement of the enameled wire. Its technical principle is mainly based on rigid mechanical transmission, and the tension is coarsely adjusted by pre-setting the screw pitch and roller pressure. In addition, the mounting components that carry the enameled wire are usually fixed with bolts or snap-fit ​​connections, requiring tools to complete the assembly and disassembly. This is cumbersome when dealing with the changeover of multiple wire specifications and makes it difficult to meet the needs of efficient production.

[0004] However, the aforementioned existing technologies, due to their use of rigid mechanical transmission and fixed tension adjustment modes, cannot adapt to changes in the diameter of the enameled wire or stress fluctuations during the stretching process. When the wire diameter tolerance is large or the stretching speed is unstable, sudden tension changes can easily cause cracking of the enameled wire insulation layer or thinning of the metal core wire, seriously affecting the product yield. At the same time, the rigid contact between the fixed roller and the enameled wire will generate significant frictional losses, further exacerbating the risk of surface damage to the wire. Therefore, an enameled wire simulated winding pre-stretching device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a simulated pre-stretching device for enameled wire winding, which aims to improve the problem of uneven tension that easily damages the wire in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A simulated winding pre-stretching device for enameled wire includes a base plate, a base platform fixedly connected to the top of the base plate, bearing components arranged on the left and right sides of the top of the base platform, a stretching component arranged between the bearing components, and a tension adjustment component arranged at the bottom of the stretching component.

[0008] The tension adjustment assembly includes a fixed plate, with fixed columns fixedly connected to the left and right sides of the top of the fixed plate. The top of the fixed columns is fixedly connected to the bottom of the tension assembly. A movable plate is provided on the top of the fixed plate, with its inner sides slidably connected to the outer wall of the fixed columns. Multiple buffer springs are provided on the top of the movable plate, arranged in an array. One end of each buffer spring is fixedly connected to the top of the movable plate, and the other end of each buffer spring is fixedly connected to the bottom of the tension assembly. Threaded rods are threadedly connected to the four corners inside the fixed plate, with the tops of the threaded rods rotatably connected to the bottom of the movable plate. A guide assembly is provided at the bottom of the movable plate.

[0009] As a further description of the above technical solution:

[0010] The guide assembly includes a guide wheel, a movable seat is provided on the top of the guide wheel, the top of the movable seat is fixedly connected to the bottom of the movable plate, the outer wall of the movable seat is slidably connected to the inside of the fixed plate, and the outer wall of the guide wheel is rotatably connected to the bottom of the inside of the movable seat.

[0011] As a further description of the above technical solution:

[0012] The stretching assembly includes a slider, the top of the fixed column and multiple buffer springs are all fixedly connected to the bottom of the slider, an electric push rod is provided above the slider, the outer wall of the electric push rod is fixedly connected to the inside of the base plate, a linkage block is fixedly connected to the output end of the electric push rod, and the side wall of the slider is fixedly connected to the side wall of the linkage block.

[0013] As a further description of the above technical solution:

[0014] A controller is fixedly connected to the outer wall of the base plate. The controller is located at the top of the slider. A slide rail is provided on the outer wall of the base plate, and the outer wall of the slider is slidably connected to the inside of the slide rail.

[0015] As a further description of the above technical solution:

[0016] The bearing assembly includes a bearing base, with handles fixedly connected to both the upper and lower sides of the outer wall of the bearing base. A rotating seat is slidably connected inside the bearing base, and multiple guide rails are fixedly connected to the outer wall of the rotating seat. The guide rails are distributed in a circumferential shape.

[0017] As a further description of the above technical solution:

[0018] A drive motor is provided on the side of the rotating seat. The outer wall of the drive motor is fixedly connected to the inside of the base plate. A transmission shaft is fixedly connected to the output end of the drive motor. The side wall of the rotating seat is fixedly connected to one end of the transmission shaft.

[0019] As a further description of the above technical solution:

[0020] The rotating seat is provided with a plurality of limiting balls inside, the limiting balls are located inside the guide rail, and the side walls of the limiting balls are fixedly connected to limiting plates. The outer walls of the limiting balls and the limiting plates are slidably connected inside the guide rail.

[0021] As a further description of the above technical solution:

[0022] Each of the limiting plates is provided with a limiting spring on its side wall. One end of each limiting spring is fixedly connected to the side wall of the limiting plate, and the other end of each limiting spring is fixedly connected to the inside of the guide rail.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the electric actuator drives the linkage block to move up and down, which in turn drives the slider to move synchronously. The slider's movement drives the bottom guide wheel to move, thereby completing the pre-stretching of the enameled wire. When it is necessary to match the tension threshold of enameled wires of different diameters, the length of the buffer spring can be adjusted by rotating the threaded rod. During pre-stretching, the buffer spring absorbs tension fluctuations through mechanical deformation, avoiding rigid stretching that could cause the enamel layer to crack or the wire diameter to thin. This solves the problem of uneven tension easily damaging the wire and improves the pre-stretching quality and yield of the enameled wire.

[0025] 2. In this utility model, the bearing seat is first pulled outward by the handle, causing the limiting ball to slide inward along the limiting plate and compress the limiting spring. After releasing the limitation on the bearing seat, the bearing seat is removed. The two ends of the enameled wire are respectively wrapped and fixed to the outer walls of the two bearing seats. Then the bearing seat is put back into the slide rail. The limiting spring pushes the limiting ball into the hole in the inner wall of the bearing seat to complete the fixation. This achieves the effect of quick assembly and disassembly of the bearing seat, solves the problem of cumbersome installation and disassembly of the bearing seat in traditional devices, and improves the efficiency and convenience of enameled wire clamping. Attached Figure Description

[0026] Figure 1 This is a perspective view of a simulated pre-stretching device for enameled wire winding proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the linkage block structure of the simulated winding pre-stretching device for enameled wire proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the movable seat structure of the simulated winding pre-stretching device for enameled wire proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the drive shaft structure of a simulated winding pre-stretching device for enameled wire proposed in this utility model;

[0030] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0031] Legend:

[0032] 1. Base plate; 2. Base platform; 3. Controller; 4. Electric actuator; 5. Linkage block; 6. Slider; 7. Slide rail; 8. Fixed column; 9. Fixed plate; 10. Movable seat; 11. Guide wheel; 12. Movable plate; 13. Threaded rod; 14. Drive motor; 15. Transmission shaft; 16. Rotating seat; 17. Guide rail; 18. Limit spring; 19. Limit plate; 20. Limit ball; 21. Bearing seat; 22. Handle; 23. Buffer spring. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-3 This utility model provides an embodiment of a simulated pre-stretching device for enameled wire winding, comprising a base plate 1, which is made of steel plate and has a large thickness to provide stable support for the entire device. A base platform 2 is fixedly connected to the top of the base plate 1 by welding. The base platform 2 is made of cast iron and has a shock-absorbing device installed at the bottom inside, which has good shock absorption performance and provides an installation foundation for other components. Bearing components are provided on the left and right sides of the top of the base platform 2. The bearing components are used to support the wire spool and other components of the enameled wire, so that the enameled wire can be transported smoothly. A stretching component is provided between the bearing components. The stretching component is used to stretch the enameled wire. A tension adjustment component is provided at the bottom of the stretching component. The tension adjustment component is used to adjust the tension of the enameled wire during the stretching process.

[0035] The tension adjustment assembly includes a fixed plate 9 made of stainless steel. Fixed columns 8, also made of stainless steel, are welded to the top left and right sides of the fixed plate 9. The tops of the fixed columns 8 are welded to the bottom of the tension assembly, serving to connect and support the fixed plate 9. A movable plate 12, made of aluminum alloy, is located on the top of the fixed plate 9. The movable plate 12 has through holes on both sides inside that mate with the fixed columns 8, allowing it to slide along the outer wall of the fixed columns 8. Multiple buffers are provided on the top of the movable plate 12. The springs 23 and 23 buffer springs are made of spring steel and are arranged in an array. One end of each spring 23 is fixedly connected to the top of the movable plate 12, and the other end is fixedly connected to the bottom of the tension assembly. They are used to absorb tension fluctuations and prevent rigid tension from damaging the enameled wire. The fixed plate 9 has threaded holes at its four corners, which are threaded to threaded rods 13. The threaded rods 13 are made of carbon steel, and their tops are rotatably connected to the bottom of the movable plate 12 via bearings. Rotating the threaded rods 13 adjusts the distance between the movable plate 12 and the fixed plate 9. The bottom of the movable plate 12 is provided with… The system includes a guide assembly comprising a guide wheel 11 made of rubber-coated metal hub, providing good wear resistance and anti-slip properties. A movable seat 10, made of aluminum alloy, is mounted on top of the guide wheel 11. The top of the movable seat 10 is fixedly connected to the bottom of the movable plate 12, and the outer wall of the movable seat 10 is slidably connected to the inside of the fixed plate 9. The outer wall of the guide wheel 11 is rotatably connected to the bottom of the movable seat 10 via bearings, serving to guide the enameled wire. The tensioning assembly includes a slider 6 made of stainless steel. The tops of the fixed post 8 and multiple buffer springs 23 are all fixedly connected to the bottom of the slider 6. An electric actuator 4 is installed above the slider 6. The electric actuator 4 is existing technology and will not be described in detail here. The outer wall of the electric actuator 4 is fixedly connected to the inside of the base plate 1 by bolts. A linkage block 5 is fixedly connected to the output end of the electric actuator 4. The side wall of the slider 6 is fixedly connected to the side wall of the linkage block 5. The electric actuator 4 is used to drive the slider 6 to move up and down. A controller 3 is fixedly connected to the outer wall of the base plate 1. The controller 3 is existing technology and will not be described in detail here. It is used to control the operation of the electric actuator 4. The controller 3 is located at the top of the slider 6. A slide rail 7 is provided on the outer wall of the base plate 1. The outer wall of the slider 6 is slidably connected to the inside of the slide rail 7 to provide guidance for the movement of the slider 6.

[0036] Reference Figure 4 and Figure 5The supporting components include a support base 21, made of engineering plastic, used for mounting and fixing the enameled wire spool. Handles 22, made of ABS engineering plastic with anti-slip texture, are fixedly connected to the upper and lower sides of the outer wall of the support base 21 via injection molding. These handles are for manual installation and removal of the support base 21. A rotating seat 16, made of stainless steel, is slidably connected inside the support base 21. Multiple guide rails 17, distributed circumferentially with a T-shaped cross-section, are formed on the outer wall of the rotating seat 16 to constrain the movement trajectory of the limiting ball 20. A drive motor 14, a micro servo motor (existing technology), is located on the side of the rotating seat 16 and will not be described in detail here. The outer wall of the drive motor 14 is bolted to the inside of the base plate 1. The output end of the drive motor 14 is fixedly connected to a transmission shaft via a coupling. 15. The drive shaft 15 is made of alloy structural steel and is used to transmit driving force. The side wall of the rotating seat 16 is fixedly connected to one end of the drive shaft 15 by a key and rotates synchronously with the drive shaft 15. Multiple limit balls 20 are provided inside the rotating seat 16. The limit balls 20 are made of stainless steel and are located inside the guide rail 17. The side walls of the limit balls 20 are fixedly connected to the limit plates 19 by welding. The limit plates 19 are also made of stainless steel and are used to limit the displacement range of the limit balls 20 and connect to the limit springs 18. The outer walls of the limit balls 20 and the limit plates 19 are slidably connected inside the guide rail 17. The side walls of the limit plates 19 are provided with limit springs 18. The limit springs 18 are made of spring steel. One end of the limit springs 18 is fixedly connected to the side wall of the limit plates 19, and the other end of the limit springs 18 is fixedly connected to the inside of the guide rail 17 to provide a reset spring force.

[0037] Working principle: When using this enameled wire simulation winding pre-stretching device, the operator first pulls the bearing seat 21 outward through the handle 22. When the bearing seat 21 moves outward along the rotating seat 16, the limiting ball 20 inside the rotating seat 16 is squeezed by the inner wall of the bearing seat 21, which in turn drives the limiting plate 19 to slide inward. At the same time, it also squeezes the limiting spring 18. At this time, the limitation on the bearing seat 21 disappears, and the operator can easily remove the bearing seat 21. Then, the enameled wire is wound around the outer wall of the bearing seat 21, and the other end of the enameled wire is fixed to the outer wall of another bearing seat 21. After fixing, the bearing seat 21 is installed on the outer wall of the rotating seat 16 again. The limiting spring 18 pushes the limiting ball 20 into the hole in the inner wall of the bearing seat 21, thus completing the fixing of the bearing seat 21. Then, the middle of the enameled wire is pulled down and inserted into the outer wall of the guide wheel 11, thereby achieving the effect of quickly installing and removing the bearing seat 21.

[0038] When pre-stretching the enameled wire, the operator can control the electric push rod 4 through the controller 3 according to the actual wire data. The electric push rod 4 drives the linkage block 5 to move up and down, which in turn drives the slider 6 to move synchronously. The movement of the slider 6 then drives the guide wheel 11 at its bottom to move. With the cooperation of the two bearing seats 21 on the left and right, the pre-stretching operation of the enameled wire is completed. When it is necessary to match the tension threshold of enameled wires of different diameters, the operator can adjust the distance between the slider 6 and the movable plate 12 by rotating the threaded rod 13, thereby adjusting the length of the buffer spring 23. During the pre-stretching operation, the buffer spring 23 absorbs tension fluctuations through mechanical deformation, which achieves the effect of avoiding cracking of the enamel layer or thinning of the wire diameter caused by rigid stretching.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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.

Claims

1. An enameled wire simulated winding pre-stretching device comprising a base plate (1), characterized in that: The base plate (1) is fixedly connected to the top of the base platform (2), and the top left and right sides of the base platform (2) are provided with bearing components, the bearing components are provided with tension components, and the bottom of the tension components is provided with tension adjustment components; The tension adjustment assembly includes a fixed plate (9), with fixed columns (8) fixedly connected to the top left and right sides of the fixed plate (9). The top of the fixed columns (8) is fixedly connected to the bottom of the tension assembly. A movable plate (12) is provided on the top of the fixed plate (9). The inner sides of the movable plate (12) are slidably connected to the outer wall of the fixed columns (8). A plurality of buffer springs (23) are provided on the top of the movable plate (12). The buffer springs (23) are distributed in an array. One end of each buffer spring (23) is fixedly connected to the top of the movable plate (12). The other end of each buffer spring (23) is fixedly connected to the bottom of the tension assembly. Threaded rods (13) are threadedly connected to the four corners inside the fixed plate (9). The top of each threaded rod (13) is rotatably connected to the bottom of the movable plate (12). A guide assembly is provided at the bottom of the movable plate (12).

2. The enameled wire simulated winding pre-stretching device according to claim 1, characterized in that: The guide assembly includes a guide wheel (11), and a movable seat (10) is provided on the top of the guide wheel (11). The top of the movable seat (10) is fixedly connected to the bottom of the movable plate (12). The outer wall of the movable seat (10) is slidably connected to the inside of the fixed plate (9). The outer wall of the guide wheel (11) is rotatably connected to the bottom of the inside of the movable seat (10).

3. The enameled wire simulated winding pre-stretching device according to claim 1, characterized in that: The stretching assembly includes a slider (6), the top of the fixed column (8) and multiple buffer springs (23) are all fixedly connected to the bottom of the slider (6), an electric push rod (4) is provided above the slider (6), the outer wall of the electric push rod (4) is fixedly connected to the inside of the base plate (1), the output end of the electric push rod (4) is fixedly connected to a linkage block (5), and the side wall of the slider (6) is fixedly connected to the side wall of the linkage block (5).

4. The enameled wire simulated winding pre-stretching device according to claim 3, characterized in that: A controller (3) is fixedly connected to the outer wall of the base plate (1). The controller (3) is located at the top of the slider (6). A slide rail (7) is provided on the outer wall of the base plate (1). The outer wall of the slider (6) is slidably connected to the inside of the slide rail (7).

5. The enameled wire simulated winding pre-stretching device according to claim 1, characterized in that: The bearing assembly includes a bearing seat (21), and handles (22) are fixedly connected to the upper and lower sides of the outer wall of the bearing seat (21). A rotating seat (16) is slidably connected inside the bearing seat (21). Multiple guide rails (17) are fixedly connected to the outer wall of the rotating seat (16). The guide rails (17) are distributed in a circular shape.

6. The enameled wire simulated winding pre-stretching device according to claim 5, characterized in that: A drive motor (14) is provided on the side of the rotating seat (16). The outer wall of the drive motor (14) is fixedly connected to the inside of the base plate (1). A transmission shaft (15) is fixedly connected to the output end of the drive motor (14). The side wall of the rotating seat (16) is fixedly connected to one end of the transmission shaft (15).

7. The enameled wire simulated winding pre-stretching device according to claim 6, characterized in that: The rotating seat (16) is provided with a plurality of limiting balls (20), which are located inside the guide rail (17). The side walls of the limiting balls (20) are fixedly connected to limiting plates (19), and the outer walls of the limiting balls (20) and the limiting plates (19) are slidably connected inside the guide rail (17).

8. The enameled wire simulated winding pre-stretching device according to claim 7, characterized in that: Each of the side walls of the limiting plate (19) is provided with a limiting spring (18). One end of each limiting spring (18) is fixedly connected to the side wall of the limiting plate (19), and the other end of each limiting spring (18) is fixedly connected to the inside of the guide rail (17).

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