A wire feeding device for transformer coil winding

Abstract

The present invention relates to the field of transformer coil preparation, and in particular to a wire feeding device for transformer coil winding, comprising an installation box, a reel, a sliding mechanism, a rotating mechanism, a transmission unit and a controller. The reel is wound around the enameled wire and unwound by pulling through the transmission unit. The sliding mechanism drives the reel to slide axially, and the rotating mechanism adjusts the reel rotation speed, and the two are controlled in coordination by the controller. The first camera monitors the angle α between the enameled wire and the vertical plane, and the second camera monitors the angle β between the horizontal plane. The controller dynamically adjusts the position and rotation speed of the reel accordingly to ensure that the unwinding and pulling speeds are synchronized. The transmission unit uses meshing gears to drive the double rubber wheels to rotate in opposite directions to enhance traction stability; the rotating mechanism adjusts the spacing between the conical disks through the hydraulic oil pressure difference to achieve stepless speed change. The present invention solves the problems of uneven tension of the enameled wire, friction damage, and knotting and shutdown in traditional devices, significantly improves the winding efficiency and coil quality, and is suitable for the production of high-precision transformers.

Description

Technical Field

[0001] The present invention relates to the field of transformer coil preparation, and in particular to a wire feeding device for winding transformer coils. Background Art

[0002] As a critical component of the power system, the performance of the transformer depends directly on the precision and reliability of its coil winding. During the transformer coil manufacturing process, the enameled wire is unwound from the reel via a wire feeder and transported to the winding mechanism. Traditional wire feeders often utilize a fixed reel in conjunction with a mechanical transmission structure, relying on constant tension or speed control to deliver the enameled wire. However, these solutions have significant drawbacks: First, as the number of enameled wire layers decreases during the unwinding process, the reel radius changes, making it difficult to synchronize the unwinding speed with the pulling speed. This can easily cause sudden changes in the enameled wire tension, leading to wire breakage or insulation damage. Second, during conveyance, the enameled wire is susceptible to increased friction with the guide components due to angular deviations. This can lead to surface scratches after long-term use, affecting the coil's conductivity. Third, existing devices lack dynamic adjustment capabilities. Axial offset of the reel or fluctuations in the winding speed can easily lead to tangling and entanglement of the enameled wire, necessitating frequent machine downtime and adjustments, severely impacting production efficiency.

[0003] Furthermore, existing transmission systems often rely on mechanical gears or belts, which have a limited adjustment range and are unable to adapt to dynamic changes in the reel radius, resulting in a long-term mismatch between the wire unwinding speed and the pulling speed. The core of these issues lies in the fact that existing devices lack the ability to monitor the wire's spatial posture in real time, nor do they have a coordinated adjustment mechanism based on multi-parameter feedback. Summary of the Invention

[0004] In order to solve the aforementioned technical problems, the present invention provides a wire feeding device for transformer coil winding, which solves the problems of uneven tension of enameled wire, friction damage and knotting shutdown in traditional devices through camera detection combined with sliding mechanism and rotating mechanism to dynamically adjust the position and speed of the wire wheel. This is specifically achieved through the following technical solutions.

[0005] The present invention provides a wire feeding device for winding transformer coils, comprising an installation box, wherein a wire wheel is installed inside the installation box, and an enameled wire is wound around the outer surface of the wire wheel;

[0006] A conveying box is fixed to and communicated with the installation box, and is provided with a guide portion and a transmission portion inside, wherein the guide portion is used to guide the enameled wire to be unwound from the reel, and the transmission portion is used to pull the enameled wire;

[0007] a sliding mechanism configured to drive the wire wheel to slide along its axial direction;

[0008] a rotating mechanism configured to drive the line wheel to rotate and adjust the rotation speed of the line wheel;

[0009] A first camera and a second camera, wherein the first camera monitors an angle α between the enameled wire and a vertical plane where the axis of the guide portion is located, and the second camera monitors an angle β between the enameled wire and a horizontal plane where the axis of the guide portion is located;

[0010] The controller is connected to the first camera, the second camera, the sliding mechanism and the rotating mechanism signals, and adjusts the sliding stroke and the rotation speed of the wire wheel in real time based on the angle α and the angle β, so that the pulling speed of the enameled wire by the transmission part and the unwinding speed of the enameled wire from the wire wheel match.

[0011] Preferably, the sliding mechanism includes a slide rail, a first motor, a screw and a clamping block. The slide rail is fixed inside the installation box. The first motor is coaxially connected to the screw. The clamping block is slidably configured in the slide rail. The clamping block cooperates with the screw thread and is clamped with the end of the pulley to drive the pulley to slide axially.

[0012] Preferably, the wire wheel is slidingly arranged on a mounting square shaft, the cross section of the mounting square shaft is square, and the shaft is driven to rotate by a second motor.

[0013] Preferably, the rotating mechanism includes two groups of symmetrically arranged first conical discs, second conical discs and a hydraulic adjustment component. The structure formed by the two groups of first conical discs and second conical discs is transmitted through a first transmission belt. The hydraulic adjustment component controls the flow of hydraulic oil through a gear pump to adjust the gap between the first conical disc and the second conical disc, thereby changing the transmission ratio to adjust the speed of the spool.

[0014] Preferably, the hydraulic adjustment assembly includes two symmetrically arranged groups of hydraulic cylinders, cylindrical grooves, cylinders and rings. The rings are coaxially fixed to the second conical disk. The rings are rotatably engaged with the cylinders. The cylinders are seal-slidably arranged in the cylindrical grooves. The two groups of cylindrical grooves are seal-connected by gear pumps. The flow of hydraulic oil drives the cylinders to move axially, thereby linking the distance between the first conical disk and the second conical disk to change.

[0015] Preferably, the transmission part includes a first driving wheel, a second driving wheel and a driving ring. The gap of the driving ring is smaller than the diameter of the enameled wire, and is driven by the second motor through a belt drive to rotate in the opposite direction to clamp and pull the enameled wire.

[0016] Preferably, the transmission part further includes a first gear and a second gear, the first gear is coaxially fixed to the first driving wheel, the second gear is coaxially fixed to the second driving wheel, and the first gear and the second gear are engaged to achieve reverse rotation.

[0017] Preferably, the guide portion includes a mounting cylinder and a plurality of guide wheels, wherein the guide wheels are rotatably mounted in the through holes on the side walls of the mounting cylinder, and the side edges thereof are arranged at chamfered angles and are in rolling contact with the enameled wire.

[0018] Preferably, the axis of the mounting cylinder is aligned with the symmetrical planes of the first driving wheel and the second driving wheel in the transmission part, so that the pulling section of the enameled wire remains horizontal.

[0019] After adopting the above technical solution, the beneficial effects of the present invention are:

[0020] 1. The first and second cameras monitor the angles between the enameled wire and the axis of the guide in the vertical and horizontal planes in real time. Combined with the controller, the axial sliding stroke and rotation speed of the wire wheel are dynamically adjusted to ensure that the unwinding speed of the enameled wire is strictly synchronized with the pulling speed of the transmission part. This eliminates sudden changes in tension caused by speed mismatch, significantly reduces the risk of enameled wire breakage or insulation wear, and avoids unplanned downtime caused by knotting and entanglement, thereby improving continuous production efficiency.

[0021] 2. The sliding mechanism drives the spool axially through a screw-driven clamping block, and corrects the angle α to the preset range in real time. The rotating mechanism dynamically adjusts the spacing between the tapered disks based on the hydraulic oil pressure difference, changing the transmission ratio to match the spool speed requirement. The two work together to adapt to the changes in the spool radius as the number of unwinding layers decreases, maintaining the enameled wire in a straight state and ensuring a stable conveying path.

[0022] 3. The guide part adopts a combination of mounting cylinder and chamfered guide wheel, which optimizes the contact form between the enameled wire and the guide component to rolling friction, reducing surface scratches; the transmission part drives the double rubber drive wheels to rotate in opposite directions through symmetrical gears, increasing the contact area and friction with the enameled wire, ensuring uniform pulling and no slippage.

[0023] 4. The installation box and conveyor box are integrated, with an openable door for easy reel replacement. The controller is externally located and signals are connected to each actuator, simplifying internal wiring. The modular structure allows for quick assembly and disassembly, reducing maintenance costs and meeting the requirements for compatible reels of various specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 is a perspective view of a wire feeding device for winding transformer coils;

[0026] Figure 2 This is a schematic diagram of the internal installation of a wire feeding device used for winding transformer coils;

[0027] Figure 3 for Figure 2 A top view of

[0028] Figure 4 for Figure 2 Front view of

[0029] Figure 5 For the Figure 4 Cross-sectional view along line AA;

[0030] Figure 6 for Figure 5 A partial enlarged view of

[0031] Figure 7 for Figure 2 A partial enlarged view of position B in the middle;

[0032] Figure 8 for Figure 3 A partial enlarged view of the middle C position;

[0033] Figure 9 for Figure 8 A longitudinal cross-sectional view of

[0034] Figure 10 for Figure 8 Horizontal cross-sectional view.

[0035] Description of reference numerals:

[0036] 101-installation box, 102-box door, 103-conveying box, 104-controller, 105-reel, 106-enameled wire, 107-first camera, 108-second camera;

[0037] 200-sliding mechanism, 201-slide rail, 202-first motor, 203-screw, 204-clamping block, 205-mounting square shaft, 206-second motor;

[0038] 300 - Rotating mechanism, 301 - First conical disc, 302 - Second square shaft, 303 - Second conical disc, 304 - First transmission belt, 305 - Ring, 306 - Cylinder, 307 - Cylindrical groove, 308 - Hydraulic cylinder, 309 - Through hole, 310 - Oil chamber, 311 - Transmission pipe, 312 - Gear pump;

[0039] 400 - transmission unit, 401 - first pulley, 402 - second transmission belt, 403 - second pulley, 404 - first mounting shaft, 405 - first gear, 406 - first drive wheel, 407 - second gear, 408 - second mounting shaft, 409 - second drive wheel, 410 - drive ring;

[0040] 500- guide part, 501- mounting cylinder, 502- guide wheel. DETAILED DESCRIPTION

[0041] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present invention by illustrating examples of the present invention.

[0042] The directional terms used in the following description refer to the directions shown in the drawings and do not limit the specific structure of the present invention. It should also be noted that, in the description of the present invention, unless otherwise specified or limited, the terms "installation" and "connection" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0043] The embodiment of the present invention provides a wire feeding device for winding a transformer coil. Figure 1 、 Figure 2 、 Figure 3 , including an installation box 101, an openable box door 102 is installed on the top of the installation box 101, which is convenient for taking, placing and installing the reel 105, and the reel 105 is installed inside the installation box 101. The outside of the reel 105 is tightly wound with enameled wire 106, and the enameled wire 106 is tightly arranged in layers on the outer surface of the reel 105. The enameled wire 106 is gradually unwound from the outer surface of the reel 105 through the guiding effect of the guide part 500 and the traction effect of the transmission part 400. The transmission part 400 and the guide part 500 are installed inside the conveying box 103, and one end of the conveying box 103 is fixed to and connected with the side of the installation box 101.

[0044] The enameled wire 106 is arranged in a stage tilted manner between the guide part 500 and the wire wheel 105, and a first camera 107 is arranged directly below the enameled wire 106 in this stage for real-time monitoring of the angle α between the enameled wire 106 in this stage and the vertical plane where the axis of the guide part 500 is located. A second camera 108 is arranged on the side of the enameled wire 106 in this stage for real-time monitoring of the angle β between the enameled wire 106 in this stage and the horizontal plane where the axis of the guide part 500 is located. The enameled wire 106 and the first camera 107 are both fixedly installed inside the installation box 101.

[0045] A sliding mechanism 200 and a rotating mechanism 300 are also installed inside the installation box 101. The sliding mechanism 200 drives the reel 105 to rotate through the rotating mechanism 300, and the sliding mechanism 200 synchronously drives the transmission part 400 to transport the enameled wire 106, ensuring that the transmission part 400 pulls the enameled wire 106 and the enameled wire 106 is unwound from the reel 105 simultaneously. On the one hand, it avoids damage to the enameled wire 106 due to excessive pulling force, and on the other hand, it avoids shutdown caused by knotting, entanglement, etc. due to excessive unwinding of the enameled wire 106.

[0046] The sliding mechanism 200 can also drive the wire wheel 105 to slide back and forth along its axial direction, so that the angle α is always within its preset range, avoiding damage to the enameled wire 106 while ensuring smooth wire feeding.

[0047] The rotating mechanism 300 can reversely infer the number of remaining layers of enameled wire through the real-time data of the angle β, and dynamically adjust the rotation speed of the pulley 105 in combination with the radius of the pulley 105, so that the unwinding speed of the enameled wire 106 matches the pulling speed of the transmission part 400, and maintains the enameled wire 106 in a straight state between the pulley 105 and the transmission part 400, which will neither cause pulling damage to the enameled wire 106 nor cause knotting or entanglement of the enameled wire 106.

[0048] The first camera 107, the second camera 108, the sliding mechanism 200 and the rotating mechanism 300 are respectively connected to the controller 104 by signal. The controller 104 is fixedly installed on the outer surface of the installation box 101. The controller 104 can obtain the angle α and the angle β measured by the first camera 107 and the second camera 108 in real time, and adjust the sliding stroke of the pulley 105 along its axial direction and the rotation speed of the pulley 105 in real time to ensure that the transmission part 400 pulls the enameled wire 106 and the enameled wire 106 is unwound from the pulley 105 synchronously.

[0049] As one possible embodiment, see Figure 2 、 Figure 3 The sliding mechanism 200 includes a slide rail 201, which is fixedly installed inside the installation box 101. A first motor 202 is fixedly installed at one end of the slide rail 201. The first motor 202 is connected to the controller 104 signal. The output end of the first motor 202 is coaxially fixed with the screw 203. The screw 203 is rotatably installed at both ends of the slide rail 201. A clamping block 204 is slidingly configured inside the slide rail 201. The clamping block 204 is threadedly connected to the screw 203. The clamping block 204 can be clamped with the end of the pulley 105, thereby limiting the axial position of the pulley 105.

[0050] The wire wheel 105 is slidingly configured on the outer surface of the mounting square shaft 205, and the mounting square shaft 205 is rotatably installed inside the mounting box 101. The cross-sectional shape of the mounting square shaft 205 is square, and the wire wheel 105 is coaxially provided with a square hole that matches the cross-sectional shape of the mounting square shaft 205, so that the wire wheel 105 can slide relative to the mounting square shaft 205 along its axial direction, and the rotation of the mounting square shaft 205 and the wire wheel 105 are always kept synchronized.

[0051] The sliding mechanism 200 further includes a second motor 206 installed inside the installation box 101 . The output end of the second motor 206 is drivingly connected to the installation square shaft 205 through the rotating mechanism 300 , thereby driving the rotation of the installation square shaft 205 .

[0052] In this embodiment, as the enameled wire 106 is unwound on the pulley 105, the angle α between the enameled wire 106 and the vertical plane where the axis of the guide part 500 is located changes. The first camera 107 measures the angle α in real time and transmits the data to the controller 104. The controller 104 drives the screw 203 to rotate forward or reverse through the first motor 202, and drives the clamping block 204 to slide along the length direction of the slide rail 201 through the threaded connection relationship between the screw 203 and the clamping block 204. During the sliding process of the clamping block 204, the pulley 105 is driven to move along its axial direction, ensuring that the angle α remains within the preset range, thereby maintaining the conveying state of the enameled wire 106.

[0053] As one possible embodiment, see Figure 4 、 Figure 5 、 Figure 6 The rotating mechanism 300 includes a first conical disk 301, one side of the conical surface of the first conical disk 301 is coaxially fixed with the first end of the second square shaft 302, and the second square shaft 302 is slidably arranged inside a through hole coaxially opened on the second conical disk 303. The conical surface of the first conical disk 301 and the conical surface of the second conical disk 303 are arranged opposite to each other, and the end of the second conical disk 303 away from the first conical disk 301 is coaxially fixed with the ring 305, and the ring 305 is rotatably clamped on the first end of the cylinder 306. The second end of the cylinder 306 is sealed and slidably arranged inside the cylindrical groove 307. The cylindrical groove 307 is opened at the first end of the hydraulic cylinder 308, and the second end of the hydraulic cylinder 308 is provided with an oil chamber 310. The cylindrical groove 307 and the oil chamber 310 are connected by a number of through holes 309.

[0054] The structure consisting of the first conical disk 301, the second square shaft 302, the second conical disk 303, the first transmission belt 304, the circular ring 305, the cylinder 306, the cylindrical groove 307, the hydraulic cylinder 308, the through hole 309 and the oil chamber 310 is symmetrically distributed in two groups. One of the first conical disks 301 in the two groups of structures is coaxially fixed to the output end of the second motor 206, and the other first conical disk 301 is coaxially fixed to the mounting square shaft 205.

[0055] In addition, the oil chambers 310 in the two groups of structures are respectively fixedly connected to the two ends of the transmission pipe 311. The two groups of cylindrical grooves 307, the through holes 309, the oil chambers 310 and the transmission pipe 311 form a closed space, which is filled with hydraulic oil. A gear pump 312 is fixedly installed on the transmission pipe 311. The gear pump 312 is connected to the controller 104 signal for driving the reciprocating flow of the hydraulic oil inside the transmission pipe 311.

[0056] A first transmission belt 304 is wound in the gap between the first conical disk 301 and the second conical disk 303 . The two sets of first conical disks 301 and second conical disks 303 are used to tighten the first transmission belt 304 , thereby achieving synchronous rotation of the two sets of first conical disks 301 and second conical disks 303 .

[0057] The above structure of this embodiment realizes power transmission through the cooperation of two sets of first conical disks 301, second conical disks 303 and first transmission belt 304, so that the output end of the second motor 206 indirectly drives the rotation of the installation square shaft 205 and the wire wheel 105.

[0058] At the same time, according to the change of angle β, the controller 104 can also adjust the rotation speed of the pulley 105 by driving the rotation direction and rotation amount of the gear pump 312. As the enameled wire 106 is gradually unwound from the outer surface of the pulley 105, the number of layers of the enameled wire 106 wrapped around the outer surface of the pulley 105 gradually decreases, that is, every time the pulley 105 rotates one circle, the length of the unwound enameled wire 106 gradually shortens. Therefore, in order to ensure that the pulling and conveying speed of the enameled wire 106 and the unwinding and conveying speed are synchronized, it is necessary to adjust the rotation speed of the pulley 105 to make its rotation speed faster to meet the conveying requirements of the enameled wire 106.

[0059] As the enameled wire 106 is gradually unwound from the outer surface of the reel 105, the number of layers of the enameled wire 106 wrapped around the outer surface of the reel 105 gradually decreases. At this time, the angle β detected by the second camera 108 changes synchronously. Therefore, by changing the angle β, the rotation speed of the reel 105 can be adjusted in real time to meet the transportation requirements of the enameled wire 106.

[0060] When the second camera 108 detects a change in the angle β, it transmits a signal to the controller 104. The controller 104 controls the gear pump 312 to rotate, so that the hydraulic oil on both sides of the gear pump 312 flows through the gear pump 312. The pressure difference generated by the flow of the hydraulic oil will be transmitted to the inside of the cylindrical groove 307 through the oil chamber 310 and the through hole 309, thereby driving the cylinder 306 that is sealed and slidably configured inside the cylindrical groove 307 to move along the axial direction of the cylindrical groove 307, resulting in changes in the spacing between the two groups of first conical disks 301 and second conical disks 303.

[0061] When the rotation speed of the spool 105 needs to be increased, the gap between a group of first conical disks 301 and the second conical disk 303 on the side close to the spool 105 becomes larger. Conversely, the gap between the other group of first conical disks 301 and the second conical disk 303 on the side away from the spool 105 becomes smaller. The gaps between the two groups of first conical disks 301 and second conical disks 303 change at the same time, resulting in a change in the trajectory shape of the first transmission belt 304 that realizes the transmission of the two. On the side where the gap becomes larger, the trajectory of the first transmission belt 304 is close to the axis of the first conical disk 301, and on the side where the gap becomes smaller, the trajectory of the first transmission belt 304 is away from the axis of the first conical disk 301, thereby realizing a change in the transmission ratio between the first conical disk 301 and the second conical disk 303, thereby completing the adjustment of the rotation speed of the spool 105.

[0062] As one possible embodiment, see Figure 2 、 Figure 5 、 Figure 7 The transmission part 400 includes a first pulley 401, which is coaxially fixed with the output end of the second motor 206. The first pulley 401 is connected to the second pulley 403 through a second transmission belt 402. The second pulley 403 is coaxially fixed with the first end of the first mounting shaft 404. The first mounting shaft 404 is rotatably installed inside the conveying box 103.

[0063] The middle part of the first mounting shaft 404 is coaxially fixed with the first gear 405, the second end of the first mounting shaft 404 is coaxially fixed with the first driving wheel 406, the first mounting shaft 404 is engaged with the second gear 407, the second gear 407 is coaxially fixed with the first end of the second mounting shaft 408, the second mounting shaft 408 is rotatably installed inside the conveying box 103, and the second end of the second mounting shaft 408 is coaxially fixed with the second driving wheel 409.

[0064] Drive rings 410 are fixedly mounted on the outer circumferences of the first drive wheel 406 and the second drive wheel 409 . The enameled wire 106 is arranged between the two drive rings 410 . The drive rings 410 are made of rubber or latex to increase friction, thereby smoothly pulling the enameled wire 106 .

[0065] Among them, the first gear 405 and the second gear 407 are exactly the same gears, and the structures of the first drive wheel 406 and the second drive wheel 409 are exactly the same. Through this structure, it is ensured that when the first drive wheel 406 and the second drive wheel 409 cooperate to complete the pulling of the enameled wire 106, the two have the same rotation speed and opposite rotation direction.

[0066] Among them, the gap between the two drive rings 410 respectively fixedly installed on the outer circumference of the first drive wheel 406 and the second drive wheel 409 is smaller than the diameter of the enameled wire 106, which increases the contact area between the two drive rings 410 and the enameled wire 106, thereby providing greater friction for the transportation of the enameled wire 106.

[0067] The above structure of this embodiment enables the second motor 206 to drive the synchronous rotation of the second pulley 403 through the first pulley 401 installed on its output end, and further drives the rotation of the first gear 405 and the first drive wheel 406 through the second pulley 403. Based on the meshing relationship between the first gear 405 and the second gear 407, the second gear 407 further drives the second drive wheel 409 to rotate in the opposite direction relative to the first drive wheel 406. Through the cooperation of the first drive wheel 406 and the second drive wheel 409, the pulling of the enameled wire 106 is jointly completed.

[0068] Based on the above structure, the power source of the transmission part 400 and the power source of the rotating mechanism 300 are both the second motor 206, thereby ensuring that the transmission part 400 pulls the enameled wire 106 and the enameled wire 106 on the reel 105 is unwound synchronously. Further, by adjusting the position of the reel 105 by the sliding mechanism 200 and the rotation speed of the reel 105 by the rotating mechanism 300, the transportation of the enameled wire 106 is kept stable and synchronous, avoiding the damage of the enameled wire 106 caused by the stroke difference between the front and the back.

[0069] As one possible embodiment, see Figure 3 、 Figure 8 、 Figure 9 、 Figure 10 The guide part 500 includes a mounting cylinder 501 and a guide wheel 502. The mounting cylinder 501 is fixedly installed inside the conveying box 103. A number of through holes are evenly opened on the side wall of the mounting cylinder 501. The guide wheels 502 are rotatably installed inside the through holes. The side edges of the guide wheels 502 are set at chamfered angles, and the outer surfaces of the guide wheels 502 overlap with the outer surface of the enameled wire 106 inside the mounting cylinder 501.

[0070] The above structure ensures that when the guide part 500 guides the enameled wire 106, the friction between the guide part 500 and the outer surface of the enameled wire 106 is rolling friction through the rolling of the guide wheel 502, thereby avoiding damage to the outer skin of the enameled wire 106 and ensuring the performance of the transformer coil.

[0071] In addition, the mounting cylinder 501 is arranged horizontally, and the axis of the mounting cylinder 501 is located on the symmetrical plane of the first driving wheel 406 and the second driving wheel 409. This structure ensures that the pulling section of the enameled wire 106 by the transmission part 400 remains horizontal, and the enameled wire 106 contacts the two driving rings 410 along the tangential direction, so that the pulling force of the enameled wire 106 is more uniform.

[0072] While the embodiments of the present invention are described above, these embodiments do not exhaustively describe all details, nor do they limit the present invention to only specific embodiments. Clearly, many modifications and variations can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to make good use of the present invention and its modifications and uses. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A wire feeding device for transformer coil winding, characterized in that: include: An installation box (101) is provided with a wire wheel (105) installed therein, and an enameled wire (106) is wound around the outer surface of the wire wheel (105); A conveying box (103) is fixed to and communicates with the installation box (101), and is provided with a guide portion (500) and a transmission portion (400) therein, wherein the guide portion (500) is used to guide the enameled wire (106) to be unwound from the reel (105), and the transmission portion (400) is used to pull the enameled wire (106); A sliding mechanism (200) for driving the wire wheel (105) to slide along its axial direction; A rotating mechanism (300) for driving the line wheel (105) to rotate and adjusting the rotation speed of the line wheel (105); a first camera (107) and a second camera (108), wherein the first camera (107) monitors an angle α between the enameled wire (106) and a vertical plane where the axis of the guide portion (500) is located, and the second camera (108) monitors an angle β between the enameled wire (106) and a horizontal plane where the axis of the guide portion (500) is located; The controller (104) is connected to the first camera (107), the second camera (108), the sliding mechanism (200) and the rotating mechanism (300) in real time to adjust the sliding stroke and the rotation speed of the wire wheel (105) based on the angle α and the angle β, so that the pulling speed of the enameled wire (106) by the transmission part (400) and the unwinding speed of the enameled wire (106) from the wire wheel (105) match.

2. The wire feeding device for transformer coil winding according to claim 1, characterized in that: The sliding mechanism (200) comprises a slide rail (201), a first motor (202), a screw rod (203) and a clamping block (204); the slide rail (201) is fixed inside the installation box (101); the first motor (202) is coaxially connected to the screw rod (203); the clamping block (204) is slidably arranged inside the slide rail (201); the clamping block (204) is threadably engaged with the screw rod (203) and is clamped with the end of the wire wheel (105) to drive the wire wheel (105) to slide axially.

3. The wire feeding device for transformer coil winding according to claim 2, characterized in that: The wire wheel (105) is slidably arranged on a mounting square shaft (205), the mounting square shaft (205) has a square cross section, and is connected to the second motor (206) via a rotating mechanism (300).

4. The wire feeding device for transformer coil winding according to claim 1, characterized in that: The rotating mechanism (300) comprises two groups of symmetrically arranged first conical discs (301) and second conical discs (303) and a hydraulic adjustment assembly. The structure formed by the two groups of first conical discs (301) and second conical discs (303) is driven by a first transmission belt (304). The hydraulic adjustment assembly controls the flow of hydraulic oil through a gear pump (312) to adjust the gap between the first conical disc (301) and the second conical disc (303), thereby changing the transmission ratio to adjust the rotation speed of the reel (105).

5. The wire feeding device for transformer coil winding according to claim 4, characterized in that: The hydraulic adjustment assembly comprises two symmetrically arranged groups of hydraulic cylinders (308), cylindrical grooves (307), cylinders (306) and rings (305), wherein the rings (305) are coaxially fixed with the second conical disk (303), the rings (305) and the cylinders (306) are rotatably engaged, and the cylinders (306) are sealingly and slidably arranged in the cylindrical grooves (307). The two groups of cylindrical grooves (307) are sealed and connected via a gear pump (312), and the flow of hydraulic oil drives the cylinders (306) to move axially, thereby interlocking the distance between the first conical disk (301) and the second conical disk (303) to change.

6. The wire feeding device for transformer coil winding according to claim 1, characterized in that: The transmission part (400) comprises a first driving wheel (406), a second driving wheel (409) and a driving ring (410); the outer circumferential surfaces of the first driving wheel (406) and the second driving wheel (409) are both fixedly mounted with a driving ring (410); a gap of the driving ring (410) is smaller than the diameter of the enameled wire (106).

7. The wire feeding device for transformer coil winding according to claim 6, characterized in that: The transmission part (400) further includes a first gear (405) and a second gear (407), wherein the first gear (405) is coaxially fixed to the first driving wheel (406), and the second gear (407) is coaxially fixed to the second driving wheel (409), and the first gear (405) and the second gear (407) are meshed to achieve reverse rotation.

8. The wire feeding device for transformer coil winding according to claim 1, characterized in that: The guide portion (500) comprises a mounting cylinder (501) and a plurality of guide wheels (502). The guide wheels (502) are rotatably mounted in the through holes of the side walls of the mounting cylinder (501), with their side edges being arranged at chamfered angles and in rolling contact with the enameled wire (106).

9. The wire feeding device for transformer coil winding according to claim 8, characterized in that: The axis of the mounting cylinder (501) is aligned with the symmetrical surfaces of the first driving wheel (406) and the second driving wheel (409) in the transmission part (400), so that the pulling section of the enameled wire (106) remains horizontal.

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