A copper wire winding device for a transformer core

Abstract

The present application relates to mutual inductor winding equipment technical field, especially mutual inductor iron core copper wire winding device, including bottom plate, the top of bottom plate is equipped with first winding mechanism, first winding mechanism includes mounting bracket, mounting bracket is fixedly installed on the top of bottom plate, the side of mounting bracket is rotatably installed with guide wheel, the guide wheel is provided with multiple, the inside of guide wheel is movably installed with circular ring toothed plate, the side of circular ring toothed plate is fixedly installed with mounting roller, the side of mounting bracket is fixedly installed with vertical plate, the present application is through the setting of support mechanism, the production switching of different specifications mutual inductor, through quick mechanical adjustment, can realize short time completion mode conversion, this greatly shortens the downtime of specification switching, improves the effective production time of equipment, especially suitable for multi-variety, variable batch order demand, enhances the flexibility of production plan.

Description

Technical Field

[0001] This invention relates to the field of transformer winding equipment technology, specifically to a copper wire winding device for transformer cores. Background Technology

[0002] As a key device in power systems for measuring, protecting, and controlling electrical quantities, the quality of the windings of instrument transformers directly affects their electrical performance, insulation reliability, and operational stability. During the winding manufacturing process, the winding of copper wire onto the iron core is a crucial step, requiring stable tension, uniform wire arrangement, and precise insulation coverage, while also adapting to the production needs of iron cores of different specifications and shapes.

[0003] Traditional winding equipment is mostly designed for special purposes. Large current transformers require large winding machines due to their large core size and numerous winding turns, while small current transformers rely on small precision equipment. When switching between production of different specifications, it is necessary to go through processes such as machine shutdown, workpiece transfer, and debugging of new equipment parameters. The switching cycle is long and the equipment idle rate is high, making it difficult to adapt to the order requirements of multiple varieties and variable batches. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides a copper wire winding device for a current transformer core that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows:

[0006] This invention provides a copper wire winding device for a current transformer core, comprising a base plate, wherein a first winding mechanism is mounted on the top of the base plate, the first winding mechanism comprising:

[0007] The mounting bracket is fixedly installed on the top of the base plate, and guide wheels are rotatably mounted on the side of the mounting bracket, with multiple guide wheels provided;

[0008] A circular toothed plate, wherein the circular toothed plate is movably installed inside the guide wheel, and an installation roller is fixedly installed on the side of the circular toothed plate;

[0009] A vertical plate is fixedly installed on the side of the mounting bracket, and a gear is rotatably installed on the side of the vertical plate, the gear meshing with a circular gear plate.

[0010] In one embodiment of the present invention, a vertical bracket is fixedly installed on the top of the base plate, a first motor is fixedly installed on the side of the vertical bracket, a rotating disk is fixedly installed on the output end of the first motor, and a limit groove is formed on the surface of the rotating disk, and a plurality of limit grooves are provided.

[0011] In one embodiment of the present invention, a fixed circular plate is fixedly mounted on the side of the mounting bracket, and a connecting assembly is rotatably mounted on the side of the fixed circular plate. The connecting assembly includes a rotating roller, which is rotatably mounted on the side of the fixed circular plate and is fixedly connected to a gear.

[0012] In one embodiment of the present invention, a sliding groove is formed on the surface of the rotating roller, and a limiting post is slidably installed inside the sliding groove. The diameter of the limiting post is the same as the diameter of the limiting groove, and a spring is fixedly installed at the bottom of the limiting post. The spring is disposed between the limiting post and the sliding groove.

[0013] In one embodiment of the present invention, a support mechanism is provided on the top of the base plate. The support mechanism includes a first sliding track, which is opened on the top of the base plate. There are two sets of the first sliding track, and each set of the first sliding track has two tracks. A first sliding plate is slidably installed inside each set of the first sliding track.

[0014] In one embodiment of the present invention, a second sliding track is provided on the top of the first sliding plate, a first limiting wheel is slidably mounted on the top of the second sliding track, a second limiting wheel is fixedly mounted on the top of the first sliding plate, and an iron core is placed between the first limiting wheel and the second limiting wheel.

[0015] In one embodiment of the present invention, a third sliding track is provided on the top of the base plate, and two third sliding tracks are provided. A power wheel is slidably installed on each of the two third sliding tracks. There are two power wheels, and a second motor is provided on the side of the right power wheel.

[0016] In one embodiment of the present invention, a second winding mechanism is installed on the top of the mounting bracket. The second winding mechanism includes a top plate, which is fixedly installed on the top of the mounting bracket, and an unwinding roller is rotatably installed on the side of the top plate.

[0017] In one embodiment of the present invention, a first rotating rod is rotatably mounted on the side of the top plate. The first rotating rod passes through the entire top plate and is rotatably connected to the top plate. A limit plate is fixedly mounted on the end of the first rotating rod. A connecting rod is fixedly mounted on the side of the limit plate. A tensioning wheel is fixedly mounted on the end of the connecting rod. A torsion spring is sleeved on the surface of the first rotating rod.

[0018] In one embodiment of the present invention, a rotating plate is fixedly installed at the other end of the first rotating rod, a fourth rotating rod is rotatably installed on the side of the rotating plate, a second rotating rod is rotatably installed on the side of the fixed circular plate, a third rotating rod is fixedly installed at the end of the second rotating rod, the top of the third rotating rod is rotatably connected to the fourth rotating rod, and a stop plate is fixedly installed at the end of the third rotating rod, the stop plate being in contact with the limiting post.

[0019] The present invention provides a copper wire winding device for a current transformer core, the advantages of which include:

[0020] 1. This invention, through the setting of a support mechanism, enables the switching of production of current transformers of different specifications. If multiple machines are used, it is necessary to go through processes such as downtime conversion, which results in a long switching cycle and high debugging costs due to equipment differences. Through rapid mechanical adjustment, the mode conversion can be completed in a short time. This significantly shortens the downtime for specification switching, increases the effective production time of the equipment, and is especially suitable for orders with multiple varieties and variable batches, enhancing the flexibility of production planning.

[0021] 2. By setting up a second winding mechanism, the present invention can stop the winding of the insulating paper in time when the first winding mechanism is stopped while winding the iron core with the winding skeleton. This avoids the winding of copper wire and insulating paper being out of sync. The insulating paper is a key material for the insulation of the transformer winding and needs to be wound synchronously with the copper wire. If the insulating paper device continues to operate after the copper wire breaks, it will cause the insulating paper to be wound meaninglessly, resulting in redundant material consumption. Synchronous stopping can accurately control the amount of insulating paper used, avoid the waste of excess material caused by empty winding, and reduce the production material cost.

[0022] 3. The present invention, through the setting of the first winding mechanism, can realize the operation of winding copper wire and insulating paper simultaneously on the current transformer. The insulation performance of the current transformer depends on the tight adhesion and precise coverage of the insulating paper and the copper wire. If the copper wire and the insulating paper are wound separately, the copper wire may become slightly loose or shifted due to the release of tension after winding, resulting in the subsequent deviation of the insulating paper coverage position and the formation of weak points in the insulation. However, when winding synchronously, the insulating paper can adhere tightly to the surface of the copper wire that has just been wound in real time and cover it synchronously with the direction of the copper wire, ensuring that each section of copper wire is precisely wrapped by the insulating paper and avoiding problems such as missing wrapping and misalignment. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure provided by an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the overall mounting bracket structure provided for an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of the rear structure of the mounting bracket provided in an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the front structure of the mounting bracket provided in an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the support mechanism structure provided for an embodiment of the present invention;

[0029] Figure 6 A schematic diagram of the connection component structure provided for an embodiment of the present invention;

[0030] Figure 7 Provided for the embodiments of the present invention Figure 2 Enlarged structural diagram of section A in the middle;

[0031] Figure 8 Provided for the embodiments of the present invention Figure 6 Enlarged structural diagram of section B.

[0032] In the diagram: 1. Base plate; 2. First winding mechanism; 201. Mounting bracket; 202. Guide wheel; 203. Circular toothed plate; 204. Mounting roller; 205. Vertical plate; 206. Gear; 207. Vertical support; 208. First motor; 209. Rotating disc; 210. Limiting groove; 211. Fixed circular plate; 3. Connecting assembly; 301. Rotating roller; 302. Sliding groove; 303. Limiting post; 304. Spring; 4. Support mechanism; 401. First sliding track; 402. First sliding plate; 403. Second sliding rail; 404. First limiting wheel; 405. Second limiting wheel; 406. Iron core; 407. Third sliding rail; 408. Power wheel; 409. Second motor; 5. Second winding mechanism; 501. Top plate; 502. Unwinding roller; 503. First rotating rod; 504. Limiting plate; 505. Connecting rod; 506. Tensioning wheel; 507. Torsion spring; 508. Rotating plate; 509. Fourth rotating rod; 510. Second rotating rod; 511. Third rotating rod; 512. Support plate. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Reference Figures 1-8This technical solution provides a copper wire winding device for a current transformer core, specifically including a base plate 1. A first winding mechanism 2 is installed on the top of the base plate 1. The first winding mechanism 2 includes a mounting bracket 201, a circular toothed plate 203, and a vertical plate 205. The mounting bracket 201 is fixedly installed on the top of the base plate 1. A guide wheel 202 is rotatably mounted on the side of the mounting bracket 201. Multiple guide wheels 202 are provided. The circular toothed plate 203 is movably installed inside the guide wheel 202, and can rotate inside the guide wheel 202, so that the circular toothed plate 203 can rotate around the mounting bracket 201. The ring revolves in a circular motion. An installation roller 204 is fixedly mounted on the side of the ring toothed plate 203. Copper wire is wound inside the installation roller 204. A vertical plate 205 is fixedly mounted on the side of the mounting bracket 201. A gear 206 is rotatably mounted on the side of the vertical plate 205, meshing with the ring toothed plate 203. A vertical bracket 207 is fixedly mounted on the top of the base plate 1. A first motor 208 is fixedly mounted on the side of the vertical bracket 207. A rotating disk 209 is fixedly mounted on the output end of the first motor 208. Multiple limit grooves 210 are provided on the surface of the rotating disk 209. A fixed circular plate 211 is fixedly mounted on the side of the mounting bracket 201. A connecting assembly 3 is rotatably mounted on the side of the fixed circular plate 211. The connecting assembly 3 includes a rotating roller 301, which is rotatably mounted on the side of the fixed circular plate 211. The rotating roller 301 is fixedly connected to a gear 206. A sliding groove 302 is formed on the surface of the rotating roller 301. A limiting post 303 is slidably mounted inside the sliding groove 302. The diameter of the limiting post 303 is the same as the diameter of the limiting groove 210. A spring 304 is fixedly mounted at the bottom of the limiting post 303 and is positioned between the limiting post 303 and the sliding groove 302. When the limiting post 303 is inserted into the limiting groove 210 under the action of the spring 304, the rotation of the rotating disk 209 can drive the rotating roller 301 to rotate. Therefore, when the first motor 208 is started, the first motor 208 can drive the rotating disk 209 to rotate, the rotating disk 209 can drive the rotating roller 301 to rotate, the rotation of the rotating roller 301 can drive the gear 206 to rotate, and then drive the annular toothed plate 203 to rotate, so that the mounting roller 204 can rotate around the center of the annular toothed plate 203, and thus the first winding operation can be performed.

[0035] It should be noted that when the limiting post 303 is inserted into the limiting groove 210, one end of the limiting post 303 remains inside the sliding groove 302. Therefore, when the rotating disk 209 rotates, the limiting post 303 slides inside the limiting groove 210, and the rotating disk 209 does not drive the rotating roller 301 to rotate at this time. When the limiting post 303 slides to the end of the limiting groove 210, the limiting post 303 moves along with the rotating disk 209 under the action of the limiting groove 210. The rotating disc 209 rotates, and because the limiting post 303 has a section inside the sliding groove 302, the limiting post 303 and the rotating roller 301 are integrated. This causes the rotating roller 301 to rotate together when the rotating disc 209 rotates. The rotating roller 301 is connected to the gear 206 through a connecting shaft. When the rotating roller 301 rotates, it can drive the gear 206 to rotate together, which in turn drives the annular toothed plate 203 to rotate, thus completing the first winding operation.

[0036] Meanwhile, the material wound inside the mounting roller 204 can be replaced as needed, such as replacing the copper wire with insulating paper, to meet different winding requirements and enable the winding of copper wires for transformers of different shapes and specifications on the same equipment.

[0037] Reference Figures 1-8This embodiment also proposes that a support mechanism 4 be provided on the top of the base plate 1. The support mechanism 4 includes a first sliding rail 401, which is provided on the top of the base plate 1. There are two sets of first sliding rails 401, with two rails in each set. The two sets of first sliding rails 401 are respectively provided on both sides of the base plate 1. The two first sliding rails 401 are arranged longitudinally. A first sliding plate 402 is slidably installed inside each set of first sliding rails 401. A second sliding rail 403 is provided on the top of the first sliding plate 402. A first limiting wheel 404 is slidably installed on the top of the second sliding rail 403. A second limiting wheel 405 is fixedly installed on the top of the first sliding plate 402. The first limiting wheel 404 and the second limiting wheel 405 are fixedly installed. An iron core 406 is placed between wheels 405. Under the action of the symmetrically arranged first sliding rails 401, the distance between the left and right second limiting wheels 405 is the distance between the two first sliding plates 402, while the distance between the left and right second limiting wheels 405 is the longitudinal length of the iron core 406. When the first sliding plates 402 slide inside the first sliding rails 401, the distance between the left and right second limiting wheels 405 can be changed, thereby changing the length that can support the iron core 406. The first limiting wheel 404 can slide inside the second sliding rails 403, thus changing the distance between the first limiting wheel 404 and the second limiting wheel 405. The distance between the first limiting wheel 404 and the second limiting wheel 405 is the lateral length of the iron core 406. Changing the distance between the first limiting wheel 404 and the second limiting wheel 405 changes the lateral length that can support the iron core 406. Therefore, when the lateral length and longitudinal length of the iron core 406 that can be supported are not the same, the shape of the iron core 406 is a long ring. The winding method of the long ring iron core 406 is that the iron core 406 moves evenly during the winding process, so that the copper wire is evenly wound on the surface of the iron core 406. When the distance between the first limiting wheel 404 and the second limiting wheel 405 is the same as the distance between the left second limiting wheel 405 and the right second limiting wheel 405, the ring-shaped iron core 406 can be supported. A built-in motor is installed at the bottom of wheel 405, which can drive the second limit wheel 405 to rotate. The winding method of the annular iron core 406 is such that the iron core 406 rotates evenly, so that the copper wire is wound around the surface of the annular iron core 406. A third sliding rail 407 is opened at the top of the base plate 1. There are two third sliding rails 407, and each of the two third sliding rails 407 is slidably mounted with a power wheel 408. There are two power wheels 408. A second motor 409 is installed on the side of the right power wheel 408. The interiors of the first sliding rail 401, the second sliding rail 403, and the third sliding rail 407 are all electric rails, so that objects inside the rails can move automatically. A winding frame is sleeved on the surface of some current transformers.During production, copper wire needs to be wound around the surface of the winding bobbin. To accelerate production, the winding bobbin is directly brought into contact with the surface of the power wheel 408. The iron core 406 is fixed by the first limiting wheel 404 and the second limiting wheel 405. Driven by the second motor 409, the right-hand power wheel 408 rotates. Under the action of friction, the winding bobbin rotates on the surface of the transformer. The rotation of the winding bobbin serves as the power source, pulling the copper wire to wind around its surface. Through the support mechanism 4, the operator can adjust the distance between the first limiting wheel 404 and the second limiting wheel 405 as needed to meet different winding requirements.

[0038] Reference Figures 1-8 This embodiment also proposes that a second winding mechanism 5 is installed on the top of the mounting bracket 201. The second winding mechanism 5 includes a top plate 501, which is fixedly installed on the top of the mounting bracket 201. An unwinding roller 502 is rotatably installed on the side of the top plate 501. The inside of the unwinding roller 502 can be replaced with different materials as needed. When it is necessary to wind the transformer core 406 with a winding frame, the design of unwinding roller 502 unwinding copper wire and the inside of mounting roller 204 unwinding insulating paper can be adopted. The operator simultaneously starts the first motor 208 and the second motor 409 to make the winding frame rotate on the surface of the core 406, so that the copper wire inside the unwinding roller 502 can cover the surface of the winding frame. At the same time, by adjusting the first motor... The rotational speed of motor 208 and the second motor 409 causes the mounting roller 204 to rotate around the winding frame while simultaneously winding insulating paper onto the surface of the winding frame. When winding a toroidal transformer or a long toroidal transformer, copper wire is wound inside the mounting roller 204, and the insulating paper is wound manually using conventional methods. Switching between different specifications of transformers, if relying on multiple machines, requires downtime and conversion processes, resulting in long switching cycles and high debugging costs due to equipment differences. Through rapid mechanical adjustment, mode conversion can be completed in a short time, which significantly shortens the downtime for specification switching, increases the effective production time of the equipment, and is especially suitable for orders with multiple varieties and variable batches, enhancing the flexibility of production planning.

[0039] A first rotating rod 503 is rotatably mounted on the side of the top plate 501. The first rotating rod 503 passes through the entire top plate 501 and is rotatably connected to the top plate 501. A limit plate 504 is fixedly mounted at the end of the first rotating rod 503. A connecting rod 505 is fixedly mounted on the side of the limit plate 504. A tension wheel 506 is fixedly mounted at the end of the connecting rod 505. A torsion spring 507 is sleeved on the surface of the first rotating rod 503. Under the action of the torsion spring 507, the bottom of the tension wheel 506 can be tightly pressed against the surface of the copper wire, so that the copper wire can generate tension force during the winding process, ensuring that the copper wire can be tightly pressed against the surface of the iron core 406. If the copper wire breaks during the winding process, the elastic force of the torsion spring 507 will cause the tension wheel 506 to move downward, thereby causing the first rotating rod 503 to break. As rod 503 rotates, the diameter and hardness of the copper wire required for winding in large current transformers with winding frames increase directly. Therefore, in order to ensure that the copper wire adheres tightly to the surface of the iron core 406, tensioning is required during the winding process of large iron cores 406 with winding frames. Circular and long-ring iron cores 406 are generally used in small current transformers, and the diameter and softness of the copper wire wound on their surface are also smaller. Therefore, the winding device itself can ensure that the copper wire adheres tightly to the surface of the iron core 406. A rotating plate 508 is fixedly installed at the other end of the first rotating rod 503. A fourth rotating rod 509 is rotatably installed on the side of the rotating plate 508, and a second rotating rod 509 is rotatably installed on the side of the fixed circular plate 211. 10. A third rotating rod 511 is fixedly installed at the end of the second rotating rod 510. The top of the third rotating rod 511 is rotatably connected to the fourth rotating rod 509. A stop plate 512 is fixedly installed at the end of the third rotating rod 511. The stop plate 512 contacts the limiting post 303. When the first rotating rod 503 rotates, the rotating first rotating rod 503 will drive the rotating plate 508 to rotate. The rotation of the rotating plate 508 can drive the fourth rotating rod 509 to rotate. The rotation of the fourth rotating rod 509 can drive the third rotating rod 511 to rotate. The rotation of the third rotating rod 511 can cause the stop plate 512 to abut against the limiting post 303, causing the limiting post 303 to slide back into the sliding groove 302. In this case, the limiting post 303 and... The limiting groove 210 separates, thus preventing the rotation of the rotating disk 209 from driving the rotation of the rotating roller 301, thereby stopping the rotation of the entire first winding mechanism 2. When winding the iron core 406 with the winding skeleton, timely stopping of the first winding mechanism 2 ensures that the winding of the insulating paper stops promptly, preventing asynchronous winding of the copper wire and the insulating paper. The insulating paper is a key material for the insulation of the transformer winding and must be wound synchronously with the copper wire. If the insulating paper device continues to operate after the copper wire breaks, it will result in meaningless empty winding of the insulating paper, causing redundant material consumption. Synchronous stopping allows for precise control of the amount of insulating paper used, avoiding waste of excess material due to empty winding and reducing production material costs. When winding the circular iron core 406 and the long circular iron core 406...Because the copper wire is wound around the surface of the mounting roller 204, the copper wire does not contact the tensioning wheel 506 and therefore does not affect the tension of the copper wire.

[0040] Specifically, the working process or working principle of the copper wire winding device for the transformer core is as follows: When the limiting post 303 is inserted into the limiting groove 210 under the action of the spring 304, the rotation of the rotating disk 209 can drive the rotating roller 301 to rotate. Therefore, when the first motor 208 is started, the first motor 208 can drive the rotating disk 209 to rotate, the rotating disk 209 can drive the rotating roller 301 to rotate, the rotation of the rotating roller 301 can drive the gear 206 to rotate, and then drive the annular toothed plate 203 to rotate, so that the mounting roller 204 can rotate around the center of the annular toothed plate 203, and thus the first winding operation can be performed.

[0041] It should be noted that when the limiting post 303 is inserted into the limiting groove 210, one end of the limiting post 303 remains inside the sliding groove 302. Therefore, when the rotating disk 209 rotates, the limiting post 303 slides inside the limiting groove 210, and the rotating disk 209 does not drive the rotating roller 301 to rotate at this time. When the limiting post 303 slides to the end of the limiting groove 210, the limiting post 303 moves along with the rotating disk 209 under the action of the limiting groove 210. The rotating disc 209 rotates, and because the limiting post 303 has a section inside the sliding groove 302, the limiting post 303 and the rotating roller 301 are integrated. This causes the rotating roller 301 to rotate together when the rotating disc 209 rotates. The rotating roller 301 is connected to the gear 206 through a connecting shaft. When the rotating roller 301 rotates, it can drive the gear 206 to rotate together, which in turn drives the annular toothed plate 203 to rotate, thus completing the first winding operation.

[0042] Meanwhile, the material wound inside the mounting roller 204 can be replaced as needed, such as replacing the copper wire with insulating paper, to meet different winding requirements and enable the winding of copper wires for transformers of different shapes and specifications on the same equipment.

[0043] An iron core 406 is placed between the first limiting wheel 404 and the second limiting wheel 405. Under the action of the symmetrically arranged first sliding rail 401, the distance between the left and right second limiting wheels 405 is the distance between the two first sliding plates 402, while the distance between the left and right second limiting wheels 405 is the longitudinal length of the iron core 406. When the first sliding plate 402 slides inside the first sliding rail 401, it can change the distance between the left and right second limiting wheels 405, thereby changing the length that can support the iron core 406. The first limiting wheel 404 can slide inside the second sliding rail 403, changing the distance between the first limiting wheel 404 and the second limiting wheel 405. The distance between the first limiting wheel 404 and the second limiting wheel 405 is the transverse length of the iron core 406. Changing the distance between the first limiting wheel 404 and the second limiting wheel 405 changes the lateral length of the iron core 406 that can be supported. Therefore, when the lateral length and longitudinal length of the iron core 406 that can be supported are not the same, the shape of the iron core 406 is a long ring. The winding method of the long ring iron core 406 is that the iron core 406 moves evenly during the winding process, so that the copper wire is evenly wound on the surface of the iron core 406. When the distance between the first limiting wheel 404 and the second limiting wheel 405 is the same as the distance between the left second limiting wheel 405 and the right second limiting wheel 405, the ring-shaped iron core 406 can be supported. The bottom of the second limiting wheel 405 is equipped with a built-in motor, which can drive the second limiting wheel 405 to rotate. The winding method of the ring iron core 406 is that the iron core 406 rotates evenly, so that the copper wire is wound on the surface of the ring iron core 406.

[0044] The first sliding rail 401, the second sliding rail 403, and the third sliding rail 407 all use electric tracks, allowing objects inside the tracks to move automatically. Some current transformers have winding frames fitted onto their surfaces. During production, copper wire needs to be wound around the surface of the winding frame. To speed up production, the winding frame is directly brought into contact with the surface of the power wheel 408. The iron core 406 itself is fixed by the first limiting wheel 404 and the second limiting wheel 405. Driven by the second motor 409, the right-hand power wheel 408 rotates. Under the action of friction, the winding frame rotates on the surface of the current transformer. The rotation of the winding frame serves as the power source, pulling the copper wire to wind around its surface. Through the support mechanism 4, the operator can adjust the distance between the first limiting wheel 404 and the second limiting wheel 405 as needed to meet different winding requirements.

[0045] The unwinding roller 502 can be fitted with different materials as needed. When winding the transformer core 406 with a winding frame, the unwinding roller 502 can unwind the copper wire while the mounting roller 204 unwinds the insulating paper. The operator simultaneously starts the first motor 208 and the second motor 409, causing the winding frame to rotate on the surface of the core 406. This allows the copper wire inside the unwinding roller 502 to cover the surface of the winding frame. By adjusting the speeds of the first motor 208 and the second motor 409, the mounting roller 204 rotates around the winding frame while simultaneously covering the surface of the winding frame. The operation involves winding insulating paper. When winding a toroidal or long toroidal transformer, copper wire is wound inside the mounting roller 204, and the insulating paper is wound manually using conventional methods. Switching between different specifications of transformers, if relying on multiple machines, requires downtime and conversion processes, resulting in long switching cycles and high debugging costs due to equipment differences. Through rapid mechanical adjustment, mode conversion can be completed in a short time, which significantly shortens the downtime for specification switching, increases the effective production time of the equipment, and is especially suitable for orders with multiple varieties and variable batches, enhancing the flexibility of production planning.

[0046] Under the action of the torsion spring 507, the bottom of the tensioning wheel 506 can be pressed tightly against the surface of the copper wire, so that the copper wire can generate tension during the winding process, ensuring that the copper wire can be pressed tightly against the surface of the iron core 406. If the copper wire breaks during the winding process, the elastic force of the torsion spring 507 will move the tensioning wheel 506 downward, thereby causing the first rotating rod 503 to rotate. Among the types of current transformers, the diameter and hardness of the copper wire to be wound will be directly increased for large current transformers with winding skeletons. Therefore, in order to ensure that the copper wire is pressed tightly against the surface of the iron core 406, tensioning is required during the winding process of large iron cores 406 with winding skeletons. Circular and long annular iron cores 406 are generally used for small current transformers, and the diameter of the copper wire wound on their surface is also smaller and the texture is softer. Therefore, the copper wire can be pressed tightly against the surface of the iron core 406 under the action of the winding device itself.

[0047] When the first rotating rod 503 rotates, it drives the rotating plate 508 to rotate. The rotation of the rotating plate 508 drives the fourth rotating rod 509 to rotate, which in turn drives the third rotating rod 511 to rotate. The rotation of the third rotating rod 511 causes the abutment plate 512 to abut against the limiting post 303, causing the limiting post 303 to slide back into the sliding groove 302. In this case, the limiting post 303 separates from the limiting groove 210, thus preventing the rotation of the rotating disk 209 from driving the rotation of the rotating roller 301, thereby stopping the rotation of the entire first winding mechanism 2. When winding 406, timely stopping of the first winding mechanism 2 can stop the winding of the insulating paper in time, avoiding asynchronous winding of copper wire and insulating paper. Insulating paper is a key material for the insulation of transformer windings and needs to be wound synchronously with copper wire. If the insulating paper device continues to operate after the copper wire breaks, it will cause the insulating paper to be wound meaninglessly, resulting in redundant material consumption. Synchronous stopping can accurately control the amount of insulating paper used, avoid the waste of excess material caused by empty winding, and reduce production material costs. When winding the circular iron core 406 and the long annular iron core 406, since the copper wire is wound on the surface of the mounting roller 204, the copper wire does not contact the tensioning wheel 506 and will not affect the tension of the copper wire.

Claims

1. A copper wire winding device for a current transformer core, comprising a base plate (1), characterized in that, A first winding mechanism (2) is installed on the top of the base plate (1), and the first winding mechanism (2) includes: Mounting bracket (201) is fixedly mounted on the top of the base plate (1). Guide wheels (202) are rotatably mounted on the side of the mounting bracket (201). Multiple guide wheels (202) are provided. A circular toothed plate (203) is movably installed inside the guide wheel (202), and an installation roller (204) is fixedly installed on the side of the circular toothed plate (203). A vertical plate (205) is fixedly installed on the side of the mounting bracket (201). A gear (206) is rotatably installed on the side of the vertical plate (205). The gear (206) meshes with a circular toothed plate (203). A vertical bracket (207) is fixedly installed on the top of the base plate (1), a first motor (208) is fixedly installed on the side of the vertical bracket (207), a rotating disk (209) is fixedly installed at the output end of the first motor (208), and a limit groove (210) is opened on the surface of the rotating disk (209), and multiple limit grooves (210) are provided. A fixed circular plate (211) is fixedly installed on the side of the mounting bracket (201), and a connecting assembly (3) is rotatably installed on the side of the fixed circular plate (211). The connecting assembly (3) includes a rotating roller (301), which is rotatably installed on the side of the fixed circular plate (211). The rotating roller (301) is fixedly connected to a gear (206). The rotating roller (301) has a sliding groove (302) on its surface. A limiting post (303) is slidably installed inside the sliding groove (302). The diameter of the limiting post (303) is the same as the diameter of the limiting groove (210). A spring (304) is fixedly installed at the bottom of the limiting post (303). The spring (304) is located between the limiting post (303) and the sliding groove (302).

2. The copper wire winding device for a current transformer core according to claim 1, characterized in that, The top of the base plate (1) is provided with a support mechanism (4). The support mechanism (4) includes a first sliding rail (401). The first sliding rail (401) is opened on the top of the base plate (1). There are two sets of the first sliding rail (401). Each set of the first sliding rail (401) has two rails. Each set of the first sliding rail (401) has a first sliding plate (402) slidably installed inside.

3. The copper wire winding device for a current transformer core according to claim 2, characterized in that, The top of the first sliding plate (402) is provided with a second sliding track (403), the top of the second sliding track (403) is slidably mounted with a first limiting wheel (404), the top of the first sliding plate (402) is fixedly mounted with a second limiting wheel (405), and an iron core (406) is placed between the first limiting wheel (404) and the second limiting wheel (405).

4. The copper wire winding device for a current transformer core according to claim 3, characterized in that, The top of the base plate (1) is provided with a third sliding rail (407). There are two third sliding rails (407), and each of the two third sliding rails (407) is slidably mounted with a power wheel (408). There are two power wheels (408), and a second motor (409) is provided on the side of the right power wheel (408).

5. The copper wire winding device for a current transformer core according to claim 4, characterized in that, The top of the mounting bracket (201) is equipped with a second winding mechanism (5), which includes a top plate (501). The top plate (501) is fixedly installed on the top of the mounting bracket (201), and an unwinding roller (502) is rotatably installed on the side of the top plate (501).

6. The copper wire winding device for a current transformer core according to claim 5, characterized in that, A first rotating rod (503) is rotatably mounted on the side of the top plate (501). The first rotating rod (503) passes through the entire top plate (501) and is rotatably connected to the top plate (501). A limiting plate (504) is fixedly mounted at the end of the first rotating rod (503). A connecting rod (505) is fixedly mounted on the side of the limiting plate (504). A tensioning wheel (506) is fixedly mounted at the end of the connecting rod (505). A torsion spring (507) is sleeved on the surface of the first rotating rod (503).

7. The copper wire winding device for a current transformer core according to claim 6, characterized in that, A rotating plate (508) is fixedly installed at the other end of the first rotating rod (503). A fourth rotating rod (509) is rotatably installed on the side of the rotating plate (508). A second rotating rod (510) is rotatably installed on the side of the fixed circular plate (211). A third rotating rod (511) is fixedly installed at the end of the second rotating rod (510). The top of the third rotating rod (511) is rotatably connected to the fourth rotating rod (509). A stop plate (512) is fixedly installed at the end of the third rotating rod (511). The stop plate (512) is in contact with the limiting post (303).

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