Transformer winding tension adjusting device and method

Abstract

The invention provides a transformer winding tension adjusting device and method, and relates to the technical field of tension adjusting.The device comprises a supporting frame, a plurality of connecting structures are arranged on the supporting frame and rotationally connected with the supporting frame, the connecting structures are connected with a pay-off barrel, and a wire is wound around the pay-off barrel; the first tension adjusting structure is in contact with the connecting structure and adjusts the rotating speed of the connecting structure; the second tension adjusting structure is in contact with the wire extending out of the pay-off barrel and adjusts the tension of the wire; a pressure sensor is arranged on the second tension adjusting structure and used for collecting the pressure value of the wire on the second tension adjusting structure; the pressure sensor is connected with a processor, and the processor adjusts the first tension adjusting structure and the second tension adjusting structure according to the pressure value. The rotation speed of the connection structure and the wire tension are adjusted directly according to the pressure value; the problem that the production efficiency is reduced due to the change of the radius of the pay-off barrel is solved, and the cooperative adjustment of the front-end path and the rear-end path on the tension of the wire is realized.

Description

Technical Field

[0001] This invention relates to the field of tension adjustment technology, specifically to a transformer winding tension adjustment device and method. Background Technology

[0002] In the manufacturing process of transformer windings, controlling the tension of the conductor is one of the key aspects to ensure winding quality. Insufficient tension may lead to loose windings and uneven inter-turn gaps, affecting the transformer's electrical performance; excessive tension, on the other hand, poses a risk of damaging or even breaking the conductor. To control tension, tension adjustment devices are installed on the winding equipment. Currently, the main tension adjustment method is to intervene in the rear path of the conductor extension side, directly applying resistance to the running conductor. By adjusting the magnitude of the resistance, the tension of the conductor wound onto the transformer core is changed, thus achieving direct control of the conductor tension.

[0003] However, in actual production, as the winding process progresses, the winding radius of the conductor on the pay-off drum at the front end continuously decreases. If the rotational speed of the pay-off drum (i.e., the pay-off speed) remains constant, then in order to maintain the conductor tension within a reasonable range, the traction speed of the conductor needs to be reduced, thereby reducing production efficiency. The tension adjustment structure at the rear end needs to be continuously adjusted to compensate for the difference in traction speed caused by the change in the pay-off drum radius. Summary of the Invention

[0004] The purpose of this invention is to provide a transformer winding tension adjustment device and method, and the technical problem to be solved is how to coordinate the front and rear paths to adjust the conductor tension.

[0005] This invention is achieved through the following technical solution:

[0006] The first aspect provides a transformer winding tension adjustment device, including a support frame, on which a plurality of connecting structures are provided, the connecting structures being rotatably connected to the support frame, the connecting structures being used to connect a wire feeding drum, the wire feeding drum being wound with a wire.

[0007] A first tension adjustment structure is in contact with the connecting structure; the rotational speed of the connecting structure is adjusted by the first tension adjustment structure.

[0008] The second tension adjustment structure is used to contact the conductor extending from the pay-off spool; the second tension adjustment structure is used to adjust the tension of the conductor.

[0009] The second tension adjustment structure is equipped with a pressure sensor, which collects the pressure value exerted on the second tension adjustment structure by the wire; the pressure sensor is connected to a processor, which is connected to the first tension adjustment structure and the second tension adjustment structure; the processor is used to adjust the first tension adjustment structure and the second tension adjustment structure according to the pressure value.

[0010] By installing a pressure sensor on the second tension adjustment structure, the pressure value exerted on it by the conductor is collected in real time. The pressure value reflects the current tension state of the conductor, and the processor adjusts the first and second tension adjustment structures based on this pressure value. For example, when the pressure value indicates that the conductor tension is too high, the processor first controls the first tension adjustment structure to increase the rotation speed of the connecting structure and increase the wire release speed for wide-range adjustment; then, it coordinates with the second tension adjustment structure to directly reduce the conductor tension for fine-tuning; the first and second tension adjustment structures work together to bring the conductor tension back to a reasonable range; conversely, when the tension is too low, the opposite adjustment is performed. Through a real-time sensing and feedback mechanism, the adjustment structures of the front and rear paths are coordinated and adjusted in a timely manner according to changes in conductor tension.

[0011] During the winding process, the winding radius of the wire on the pay-off drum continuously decreases. If only the rear tension adjustment structure is relied upon, it is difficult to accurately cope with the difference in traction speed caused by the change in radius. In this invention, the processor coordinates the first tension adjustment structure to adjust the rotation speed (i.e., pay-off speed) of the pay-off drum connection structure based on the pressure value collected by the pressure sensor, which works in conjunction with the second tension adjustment structure to adjust the wire tension. There is no need to reduce the wire traction speed to maintain tension, thus avoiding the problem of reduced production efficiency caused by the change in the pay-off drum radius. This achieves coordinated adjustment of wire tension by the front and rear paths, improving production efficiency while ensuring reasonable wire tension.

[0012] Furthermore, the aforementioned connection structure includes a rotating shaft and a connecting seat. The rotating shaft is sleeved in the connecting seat via a bearing, and the connecting seat is mounted on a support frame. A locking element is provided on the rotating shaft for fixing the pay-off drum. When the pay-off drum is rotated, the rotating shaft rotates.

[0013] The aforementioned connection structure provides a platform for the installation and rotation of the pay-off drum. The rotating shaft is fitted inside the connecting seat via bearings, ensuring smooth rotation and reducing tension fluctuations caused by uneven rotation. Simultaneously, the rotating shaft is equipped with locking devices to secure the pay-off drum, ensuring relative fixation between the drum and the rotating shaft during winding. This prevents the drum from wobbling during winding and ensures stable pay-off according to the rotation speed adjusted by the first tension adjustment structure. This avoids affecting the pay-off accuracy of the front-end path due to unstable drum fixation, thus impacting the overall coordinated tension adjustment effect of the conductor. Furthermore, if different specifications of pay-off drums need to be replaced, it can be done simply by using the locking devices, improving the equipment's versatility and maintenance efficiency. This helps ensure the continuity and stability of production, thereby better achieving coordinated tension adjustment of the conductor at both the front and rear paths.

[0014] Furthermore, the aforementioned first tension adjustment structure includes a fixed seat, an adjusting screw, a friction plate, and a driver, wherein the fixed seat is mounted on a support frame;

[0015] The aforementioned fixed base is provided with a threaded hole, one end of the adjusting screw passes through the threaded hole and is connected to one end of the friction plate; the other end of the adjusting screw is connected to the output shaft of the driver.

[0016] The other end of the aforementioned friction plate is connected to a support frame, and the friction plate is in contact with the rotating shaft; the aforementioned driver drives the adjusting screw to rotate, and by rotating the adjusting screw, the clamping force of the friction plate in contact with the rotating shaft is adjusted.

[0017] The clamping force of the friction plate pressing against the rotating shaft is adjusted by driving the adjusting screw through a driver. When the traction force applied to the conductor remains constant, increasing the clamping force increases the rotational resistance, slows down the unloading speed, and increases the conductor tension. When the pressure sensor detects a change in conductor tension, the processor issues a command to control the driver to drive the adjusting screw to adjust the clamping force of the friction plate, changing the unloading speed and allowing the conductor tension to be restored to a reasonable range as quickly as possible. This first tension adjustment structure allows for rapid adjustment of conductor tension and is suitable for a wide range of tension adjustments.

[0018] Furthermore, the aforementioned second tension adjustment structure includes a first roller and an adjustment component, wherein the first roller and the support frame are connected by a bracket; the bracket and the adjustment component are connected by a support rod.

[0019] The first roller is used to abut against the wire; the position of the first roller is changed by the adjustment component pushing the bracket to rotate through the support rod.

[0020] The first roller abuts against the conductor. When the adjusting component pushes the support to rotate via the support rod, changing the position of the first roller, it alters the wrap angle of the conductor on the first roller, as well as the direction and magnitude of the resistance experienced by the conductor. By controlling the range of positional change of the first roller according to actual needs, the resistance experienced by the conductor can be adjusted, achieving precise adjustment of the conductor tension.

[0021] The first tension adjustment structure controls the wire feeding speed by adjusting the rotation speed of the wire feeding drum connection structure, thereby affecting the conductor tension, and is suitable for a wide range of tension adjustment; while the second tension adjustment structure directly adjusts the tension of the extended conductor, and is suitable for a small range of tension adjustment.

[0022] Furthermore, the aforementioned adjusting component includes two electromagnets and a magnetic block of the same polarity. The electromagnets are connected to the processor, and the magnetic block is connected to the support rod. The magnetic block is positioned opposite to the electromagnets.

[0023] The distance between the magnetic block and the electromagnet can be adjusted by changing the current flowing through the electromagnet.

[0024] During the conductor conveying process, if the pressure value exceeds the preset value, it indicates that the conductor tension is too high. The controller increases the current supplied to the electromagnet, which generates a larger magnetic force. This pushes the magnetic block to slide a distance away from the electromagnet, causing the support rod to rotate in the opposite direction. This increases the height difference between the first roller and the pay-off drum, thereby increasing the tension on the conductor and thus achieving the conductor tension adjustment function.

[0025] Furthermore, the aforementioned second tension adjustment structure also includes a second roller, which is disposed beside the first roller, and there is a height difference between the second roller and the first roller; the aforementioned wire first contacts the second roller and then contacts the first roller.

[0026] Furthermore, the second tension adjustment structure also includes a third roller, which is disposed beside the first roller and has a height difference with the first roller; the wire contacts the second roller, the first roller and the third roller in sequence.

[0027] The first, second, and third rollers provide guidance for the conductor. The second roller ensures the conductor enters the first roller smoothly, reducing tension fluctuations caused by swaying or deflection during winding and improving the stability of the conductor's operation. The third roller ensures the conductor extends smoothly out of the first roller.

[0028] A second aspect provides a method for adjusting the tension of a transformer winding, the method employing the aforementioned tension adjusting device; the tension adjusting method includes the following steps:

[0029] Obtain the wire parameters on each wire feeding drum and the pressure value of the wire acting on the second tension adjustment structure;

[0030] Based on the above conductor parameters, call the upper limit of high pressure, the lower limit of high pressure, the upper limit of low pressure, and the lower limit of low pressure for this conductor;

[0031] Compare the pressure values, upper limit of high pressure, lower limit of high pressure, upper limit of low pressure, and lower limit of low pressure mentioned above;

[0032] If the pressure value is equal to or greater than the upper limit of the high pressure, the first tension adjustment structure is adjusted to increase the rotation speed of the connecting structure.

[0033] If the pressure value is less than the upper limit of the high pressure but greater than the lower limit of the high pressure, the second tension adjustment structure is adjusted to reduce the tension of the conductor.

[0034] If the above pressure value is less than or equal to the lower limit of high pressure and greater than the upper limit of low pressure, then the tension of the conductor is normal.

[0035] If the pressure value is less than or equal to the upper limit of the low pressure and greater than the lower limit of the low pressure, then the second tension adjustment structure is adjusted to increase the tension of the conductor.

[0036] If the pressure value is less than or equal to the lower pressure limit, the first tension adjustment structure is adjusted to reduce the rotation speed of the connecting structure.

[0037] When the conductor tension is too high and requires a wide range of adjustment, the first tension adjustment structure increases the rotation speed of the connecting structure to increase the wire release speed and quickly reduce the conductor tension; then, the second tension adjustment structure works in conjunction to directly reduce the conductor tension and bring it back to a reasonable range; conversely, when the tension is too low, the opposite adjustment is performed.

[0038] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0039] By installing a pressure sensor on the second tension adjustment structure, the pressure value exerted on it by the conductor is collected in real time. The pressure value reflects the current tension state of the conductor, and the processor adjusts the first and second tension adjustment structures based on this pressure value. For example, when the pressure value indicates that the conductor tension is too high, the processor first controls the first tension adjustment structure to increase the rotation speed of the connecting structure and increase the wire release speed for wide-range adjustment; then, it coordinates with the second tension adjustment structure to directly reduce the conductor tension for fine-tuning; the first and second tension adjustment structures work together to bring the conductor tension back to a reasonable range; conversely, when the tension is too low, the opposite adjustment is performed. Through a real-time sensing and feedback mechanism, the adjustment structures of the front and rear paths are coordinated and adjusted in a timely manner according to changes in conductor tension.

[0040] During the winding process, the winding radius of the wire on the pay-off drum continuously decreases. If only the rear tension adjustment structure is relied upon, it is difficult to accurately cope with the difference in traction speed caused by the change in radius. In this invention, the processor coordinates the first tension adjustment structure to adjust the rotation speed (i.e., pay-off speed) of the pay-off drum connection structure based on the pressure value collected by the pressure sensor, which works in conjunction with the second tension adjustment structure to adjust the wire tension. There is no need to reduce the wire traction speed to maintain tension, thus avoiding the problem of reduced production efficiency caused by the change in the pay-off drum radius. This achieves coordinated adjustment of wire tension by the front and rear paths, improving production efficiency while ensuring reasonable wire tension. Attached Figure Description

[0041] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0042] Figure 1 This is a simplified diagram showing the overall layout of the tension adjustment device;

[0043] Figure 2 This is a schematic diagram of the first tension adjustment structure after it is assembled with the pay-off drum.

[0044] Figure 3 A simplified assembly diagram of the rotating shaft and locking components;

[0045] Figure 4 A schematic diagram showing the assembly of the pay-off spool to the rotating shaft and after locking.

[0046] Figure 5 This is a partial schematic diagram of the second tension adjustment structure.

[0047] The attached diagram shows the markings and corresponding component names:

[0048] 1. Support frame; 21. Bearing; 22. Rotating shaft; 23. Connecting seat; 24. Locking element; 31. Fixed seat; 32. Adjusting screw; 33. Friction plate; 34. Driver; 41. First roller; 42. Bracket; 43. Support rod; 44. Magnetic block; 45. Electromagnet; 46. Adjusting element; 47. Second roller; 48. Third roller; 5. Pay-off drum. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0050] First embodiment:

[0051] Based on the requirements of hybrid windings, multiple types of conductors (such as copper wire, aluminum wire, flat wire, and round wire) need to be released simultaneously during the winding process. Since the conductor types are different, their tensile strength is also different. For different wire release drums 5, a transformer winding tension adjustment device of the present invention is used to achieve coordinated tension adjustment.

[0052] Combination Figure 1 and Figure 4 The tension adjustment device includes a support frame 1, on which a plurality of connecting structures are provided. The connecting structures are rotatably connected to the support frame 1. The connecting structures are used to connect a wire feeding drum 5, on which a wire is wound.

[0053] A first tension adjustment structure is in contact with the connecting structure; the rotational speed of the connecting structure is adjusted by the first tension adjustment structure.

[0054] The second tension adjustment structure is used to contact the wire extending from the wire feeding drum 5; the second tension adjustment structure is used to adjust the tension of the wire.

[0055] The second tension adjustment structure is equipped with a pressure sensor, which collects the pressure value exerted on the second tension adjustment structure by the wire; the pressure sensor is connected to a processor, which is connected to the first tension adjustment structure and the second tension adjustment structure; the processor is used to adjust the first tension adjustment structure and the second tension adjustment structure according to the pressure value.

[0056] By installing a pressure sensor on the second tension adjustment structure, the pressure value exerted on it by the conductor is collected in real time. The pressure value reflects the current tension state of the conductor, and the processor adjusts the first and second tension adjustment structures based on this pressure value. For example, when the pressure value indicates that the conductor tension is too high, the processor first controls the first tension adjustment structure to increase the rotation speed of the connecting structure and increase the wire release speed for wide-range adjustment; then, it coordinates with the second tension adjustment structure to directly reduce the conductor tension for fine-tuning; the first and second tension adjustment structures work together to bring the conductor tension back to a reasonable range; conversely, when the tension is too low, the opposite adjustment is performed. Through a real-time sensing and feedback mechanism, the adjustment structures of the front and rear paths are coordinated and adjusted in a timely manner according to changes in conductor tension.

[0057] During the winding process, the winding radius of the wire on the pay-off drum 5 continuously decreases. If only the rear tension adjustment structure is relied upon, it is difficult to accurately cope with the difference in traction speed caused by the change in radius. However, in this invention, the processor coordinates the first tension adjustment structure to adjust the rotation speed (i.e., the pay-off speed) of the connecting structure of the pay-off drum 5 based on the pressure value collected by the pressure sensor, which works in conjunction with the adjustment of the wire tension by the second tension adjustment structure. There is no need to reduce the wire traction speed to maintain tension, thus avoiding the problem of reduced production efficiency caused by the change in the radius of the pay-off drum 5. This achieves coordinated adjustment of the wire tension by the front and rear paths, improving production efficiency while ensuring reasonable wire tension.

[0058] The aforementioned processor, as the core control component, connects the first tension adjustment structure and the second tension adjustment structure. It coordinates the actions of the two structures according to the pressure value, improves the matching accuracy between the front-end wire release speed and the rear-end wire resistance, and makes dynamic adjustments based on the actual wire tension. Compared with the traditional method of only adjusting the rear-end path, it improves the control accuracy of the wire tension, thereby improving the quality of the transformer winding.

[0059] Second embodiment:

[0060] Based on the first embodiment, combined with Figures 1 to 4 The aforementioned connection structure includes a rotating shaft 22 and a connecting seat 23. The rotating shaft 22 is sleeved in the connecting seat 23 via a bearing 21. The connecting seat 23 is mounted on the support frame 1. A locking member 24 is provided on the rotating shaft 22, which is used to fix the wire feeding drum 5. When the wire feeding drum 5 is rotated, the rotating shaft 22 rotates.

[0061] The aforementioned connection structure provides an installation and rotation platform for the pay-off drum 5. The rotating shaft 22 is fitted inside the connecting seat 23 via a bearing 21, ensuring smooth rotation and reducing tension fluctuations caused by uneven rotation. Simultaneously, the rotating shaft 22 is equipped with a locking element 24 for fixing the pay-off drum 5, ensuring that the pay-off drum 5 remains relatively fixed to the rotating shaft 22 during winding, preventing the pay-off drum 5 from shaking and ensuring stable pay-off according to the rotation speed adjusted by the first tension adjustment structure. This avoids affecting the pay-off accuracy of the front-end path due to unstable fixation of the pay-off drum 5, thereby affecting the overall coordinated adjustment effect of the conductor tension. Furthermore, if it is necessary to replace the pay-off drum 5 with a different specification, it can be done simply by using the locking element 24, improving the equipment's versatility and maintenance efficiency, and helping to ensure the continuity and stability of production, thus better achieving coordinated adjustment of conductor tension between the front and rear paths.

[0062] Third embodiment:

[0063] Based on the second embodiment, combined with Figure 2The first tension adjustment structure includes a fixed base 31, an adjusting screw 32, a friction plate 33, and a driver 34. The fixed base 31 is mounted on the support frame 1. The driver 34 is connected to the processor and executes the instructions output by the processor.

[0064] The aforementioned fixed base 31 is provided with a threaded hole, one end of the adjusting screw 32 passes through the threaded hole and is connected to one end of the friction plate 33; the other end of the aforementioned adjusting screw 32 is connected to the output shaft of the driver 34;

[0065] The other end of the friction plate 33 is connected to the support frame 1, and the friction plate 33 is in contact with the rotating shaft 22. The driver 34 drives the adjusting screw 32 to rotate. By rotating the adjusting screw 32, the extension length of the adjusting screw 32 through the threaded hole is changed, thereby adjusting the pressing force of the friction plate 33 in contact with the rotating shaft 22.

[0066] The clamping force of the friction plate 33 pressing against the rotating shaft 22 is adjusted by driving the adjusting screw 32 to rotate via the driver 34. When the traction force applied to the conductor remains constant, increasing the clamping force increases the rotational resistance, slows down the wire release speed, and increases the conductor tension. When the pressure sensor detects a change in conductor tension, the processor issues a command to control the driver 34 to drive the adjusting screw 32 to adjust the clamping force of the friction plate 33, thereby changing the wire release speed and restoring the conductor tension to a reasonable range as quickly as possible. This first tension adjustment structure allows for rapid adjustment of conductor tension and is suitable for a wide range of tension adjustments.

[0067] Fourth embodiment:

[0068] Based on any of the above embodiments, combined with Figure 5 The aforementioned second tension adjustment structure includes a first roller 41 and an adjusting member 46. The first roller 41 and the support frame 1 are connected by a bracket 42. The bracket 42 is rotatably mounted on the support frame 1, and the first roller 41 is rotatably sleeved on the bracket 42. The bracket 42 and the adjusting member 46 are connected by a support rod 43. To realize the function of the support rod 43 pushing the bracket 42, the support rod 43 is set on one side of the bracket 42. The support rod 43 is rotatably connected to the bracket 42, and the support rod 43 is also rotatably connected to the adjusting member 46. An angle limiting component can be set on the other side of the bracket 42 to prevent the bracket 42 from rotating to the other side.

[0069] The first roller 41 is used to abut against the wire; the adjusting member 46 pushes the bracket 42 to rotate through the support rod 43, thereby changing the position of the first roller 41.

[0070] The first roller 41 abuts against the wire. When the adjusting member 46 pushes the bracket 42 to rotate via the support rod 43, changing the position of the first roller 41, it will change the wrap angle of the wire on the first roller 41, as well as the direction and magnitude of the resistance experienced by the wire. According to actual needs, the range of position change of the first roller 41 can be controlled to adjust the resistance experienced by the wire, thereby achieving fine adjustment of the wire tension.

[0071] The first tension adjustment structure controls the wire feeding speed by adjusting the rotation speed of the wire feeding drum 5 connecting structure, thereby affecting the wire tension, and is suitable for a wide range of tension adjustment; while the second tension adjustment structure directly adjusts the tension of the extended wire, and is suitable for a small range of tension adjustment.

[0072] The first roller 41 mentioned above abuts against the wire and can rotate freely. During the process of adjusting the wire tension, it reduces the hard friction between the wire and the fixed part, and reduces the risk of the wire being pulled or worn.

[0073] Specific implementation examples, combined with Figure 1 The aforementioned adjusting component 46 includes two electromagnets 45 of the same polarity and a magnetic block 44. The electromagnets 45 are connected to the processor, and the processor changes the current input to the electromagnets 45. The electromagnets 45 are fixed on the support frame 1. The magnetic block 44 is connected to the support rod 43, and the magnetic block 44 is arranged opposite to the electromagnets 45.

[0074] The distance between the magnetic block 44 and the electromagnet 45 can be adjusted by changing the current flowing through the electromagnet 45. To prevent the magnetic block 44 from sliding in a specific direction, a corresponding limiting component can be provided for guidance.

[0075] During the wire conveying process, if the pressure value exceeds the preset value, it indicates that the wire tension is too high. The controller increases the current supplied to the electromagnet 45, thereby generating a larger magnetic force in the electromagnet 45. This pushes the magnetic block 44 to slide a distance away from the electromagnet 45, causing the support rod 43 to drive the bracket 42 to rotate in the opposite direction, increasing the height difference between the first roller 41 and the wire feeding drum 5, thereby increasing the tension on the wire and thus realizing the wire tension adjustment function.

[0076] Fifth embodiment:

[0077] Based on the fourth embodiment, combined with Figure 1 The second tension adjustment structure further includes a second roller 47, which is disposed on the side of the first roller 41, and there is a height difference between the second roller 47 and the first roller 41; the wire first contacts the second roller 47 and then contacts the first roller 41.

[0078] In a specific embodiment, the second tension adjustment structure further includes a third roller 48, which is disposed beside the first roller 41, and there is a height difference between the third roller 48 and the first roller 41; the wire sequentially contacts the second roller 47, the first roller 41 and the third roller 48.

[0079] The first roller 41, second roller 47, and third roller 48 provide guidance for the wire. The second roller 47 ensures the wire smoothly enters the first roller 41, reducing tension fluctuations caused by wire shaking or deviation during winding and improving the stability of wire operation. The third roller 48 ensures the wire smoothly exits the first roller 41. More complex winding process requirements can be met by changing the combination and height difference of the three rollers.

[0080] Sixth embodiment:

[0081] A method for adjusting transformer winding tension, the method employing the aforementioned tension adjusting device; the tension adjusting method includes the following steps:

[0082] Obtain the wire parameters on each wire feeding drum 5 and the pressure value of the wire acting on the second tension adjustment structure;

[0083] Based on the above conductor parameters, the high pressure upper limit, high pressure lower limit, low pressure upper limit, and low pressure lower limit of the conductor are called. Among them, the high pressure upper limit > high pressure lower limit > low pressure upper limit > low pressure lower limit. The high pressure upper limit and high pressure lower limit are in the high pressure range, that is, the conductor tension is too high; the low pressure upper limit and low pressure lower limit are in the low pressure range, that is, the conductor tension is too low.

[0084] Compare the above pressure values, high pressure upper limit, high pressure lower limit, low pressure upper limit, and low pressure lower limit; configure the corresponding tension for the conductor on each pay-off drum so that the conductor wound on the winding body meets the tension requirements.

[0085] If the pressure value is equal to or greater than the upper limit of the high pressure, the first tension adjustment structure is adjusted to increase the rotation speed of the connecting structure.

[0086] If the pressure value is less than the upper limit of the high pressure but greater than the lower limit of the high pressure, the second tension adjustment structure is adjusted to reduce the tension of the conductor.

[0087] If the above pressure value is less than or equal to the lower limit of high pressure and greater than the upper limit of low pressure, then the tension of the conductor is normal.

[0088] If the pressure value is less than or equal to the upper limit of the low pressure and greater than the lower limit of the low pressure, then the second tension adjustment structure is adjusted to increase the tension of the conductor.

[0089] If the pressure value is less than or equal to the lower pressure limit, the first tension adjustment structure is adjusted to reduce the rotation speed of the connecting structure.

[0090] When the conductor tension is too high and requires a wide range of adjustment, the first tension adjustment structure increases the rotation speed of the connecting structure to increase the wire release speed and quickly reduce the conductor tension; then, the second tension adjustment structure works in conjunction to directly reduce the conductor tension and bring it back to a reasonable range; conversely, when the tension is too low, the opposite adjustment is performed.

[0091] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A transformer winding tension adjustment device, characterized by, The support frame (1) is provided with a plurality of connecting structures which are rotatably connected with the support frame (1) and used for connecting the wire winding drum (5) which is wound with a wire; The first tension adjusting structure is in contact with the connecting structure; The rotation speed of the connecting structure is adjusted by the first tension adjusting structure; The second tension adjusting structure is used for contacting the wire extending out of the wire winding drum (5); The second tension adjusting structure is used for adjusting the tension of the wire; The second tension adjusting structure is provided with a pressure sensor which collects the pressure value of the wire acting on the second tension adjusting structure; the pressure sensor is connected with a processor which is connected with the first tension adjusting structure and the second tension adjusting structure; the processor is used for adjusting the first tension adjusting structure and the second tension adjusting structure according to the pressure value.

2. The tension adjustment device of claim 1, wherein, The connecting structure comprises a rotating shaft (22) and a connecting seat (23), the rotating shaft (22) is sleeved in the connecting seat (23) through a bearing (21), and the connecting seat (23) is arranged on the support frame (1); the rotating shaft (22) is provided with a locking piece (24) which is used for fixing the wire winding drum (5); when the wire winding drum (5) is rotated, the rotating shaft (22) rotates.

3. The tension adjustment device of claim 2, wherein, The first tension adjusting structure comprises a fixing seat (31), an adjusting screw (32), a friction plate (33) and a driver (34), and the fixing seat (31) is arranged on the support frame (1); One end of the adjusting screw (32) is connected with one end of the friction plate (33) through a threaded hole in the fixing seat (31); the other end of the adjusting screw (32) is connected with an output shaft of the driver (34); The other end of the friction plate (33) is connected with the support frame (1), and the friction plate (33) is in contact with the rotating shaft (22); the driver (34) drives the adjusting screw (32) to rotate, and the pressing force of the friction plate (33) contacting the rotating shaft (22) is adjusted by rotating the adjusting screw (32).

4. The tension adjustment device of claim 1, wherein, The second tension adjusting structure comprises a first roller (41) and an adjusting piece (46), the first roller (41) and the support frame (1) are connected through a support (42); the support (42) and the adjusting piece (46) are connected through a support rod (43); The first roller (41) is used for abutting against the wire; the adjusting piece (46) drives the support (42) to rotate through the support rod (43), so that the position of the first roller (41) is changed.

5. The tension adjustment device of claim 4, wherein, The adjusting piece (46) comprises two electromagnets (45) with the same polarity and a magnetic block (44), the electromagnets (45) are connected with the processor, the magnetic block (44) is connected with the support rod (43), and the magnetic block (44) is arranged opposite to the electromagnets (45); The distance between the magnetic block (44) and the electromagnets (45) is adjusted by changing the current flowing through the electromagnets (45).

6. The tension adjustment device of claim 4, wherein, The second tension adjusting structure further comprises a second roller (47) disposed beside the first roller (41), and the second roller (47) has a height difference with the first roller (41); the wire first contacts the second roller (47) and then contacts the first roller (41).

7. The tension adjustment device of claim 6, wherein, The second tension adjusting structure further comprises a third roller (48) disposed beside the first roller (41), and the third roller (48) has a height difference with the first roller (41); the wire sequentially contacts the second roller (47), the first roller (41) and the third roller (48).

8. A method of transformer winding tension adjustment, characterized by, The tension adjusting method adopts the tension adjusting device according to any one of claims 1 to 7; the tension adjusting method comprises the following steps: obtaining the wire parameters on each pay-off drum (5) and the pressure value of the wire acting on the second tension adjusting structure; calling the high pressure upper limit value, the high pressure lower limit value, the low pressure upper limit value and the low pressure lower limit value of the wire based on the wire parameters; comparing the pressure value, the high pressure upper limit value, the high pressure lower limit value, the low pressure upper limit value and the low pressure lower limit value; if the pressure value is equal to or greater than the high pressure upper limit value, adjusting the first tension adjusting structure to increase the rotating speed of the connecting structure; if the pressure value is less than the high pressure upper limit value and greater than the high pressure lower limit value, adjusting the second tension adjusting structure to reduce the tension of the wire; if the pressure value is less than or equal to the high pressure lower limit value and greater than the low pressure upper limit value, the tension of the wire is normal; if the pressure value is less than or equal to the low pressure upper limit value and greater than the low pressure lower limit value, adjusting the second tension adjusting structure to increase the tension of the wire; if the pressure value is less than or equal to the low pressure lower limit value, adjusting the first tension adjusting structure to reduce the rotating speed of the connecting structure.

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