A transformer foil winding lead device

Abstract

The application relates to the field of transformer manufacturing, and discloses a transformer foil winding lead device which comprises a support, a device box rotatably installed in the middle of the support, two groups of fixing columns fixedly installed in the inside of the device box, support plates and springs slidably installed on the outer surfaces of the fixing columns, detachable material rods rotatably installed on the inner walls of the support plates, coils wound around the outer surfaces of the material rods, a feeding opening and a discharging opening respectively arranged on the left side and the right side of the device box, and a guide frame fixedly installed in the inside of the discharging opening. The outgoing part of the coil drives the whole device box to rotate under the guidance of the guide frame, and the outgoing part of the coil is kept from being offset from the contact angle of the opening of the guide frame, so that the surface tension fluctuation of the outgoing part of the coil is greatly reduced, and the winding quality of the coil is effectively ensured.

Description

Technical Field

[0001] This application relates to the field of transformer manufacturing technology, and in particular to a transformer foil winding lead device. Background Technology

[0002] Transformer foil windings are generally made by winding wide and thin metal coils together using a foil winding mold. This also includes insulating material wound together with the metal coils. Foil windings are the core component of transformers, responsible for the transmission and conversion of electrical energy. The manufacturing process of these windings is complex and technically challenging. When the transformer's rated current is very high, copper or aluminum foil is used for winding to facilitate operation, improve production efficiency, reduce losses, and save materials. Generally, foil windings require a dedicated foil winding machine. The winding lead device guides the roll-wound metal coil into the foil winding die surface. The winding device mainly consists of two sets of pressure rollers for guiding and clamping the coil leads. These rollers generate friction by pressing the coil and maintain the surface tension of the coil during foil winding. Because the coil needs to maintain a stable surface tension during foil winding to achieve smooth winding formation, the existing winding lead device, as mentioned above, cannot guarantee the surface tension of the coil during lead-out and foil winding. This is because the foil winding die is not a regular circle, but rather has an ellipse and rounded rectangle shape. This causes the lead-out part of the coil to change angles when the foil winding die rotates. When the coil rotates, it changes the contact area between the coil and the pressure roller of the lead device, resulting in a change in the friction between the two, which in turn changes the surface tension of the coil and affects the final winding formation. Therefore, this problem urgently needs to be solved. Summary of the Invention

[0003] This application proposes a transformer foil winding lead device, which has the advantages of high winding quality and controllable tension, in order to solve the problem of low winding quality in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solution: a transformer foil winding lead device, including a support, and further comprising: The device box is rotatably mounted in the middle of the support. Two sets of fixed columns are fixedly installed inside the device box. Support plates and springs are slidably installed on the outer surface of the fixed columns. A detachable material rod is rotatably installed on the inner wall of the support plate. A coil is wound on the outer surface of the material rod. A feeding port and a discharging port are respectively opened on the left and right sides of the device box. A guide frame is fixedly installed inside the discharging port. The support plate is elastically supported inside the device box by springs. A tension module is installed inside the device box. The tension module includes a mounting frame fixedly installed on the top of the inner wall of the device box. A support frame is fixedly installed in the middle of the inner wall of the mounting frame. Two sets of rollers are rotatably installed on the inner wall of the mounting frame. A conveyor belt is movably sleeved on the outer surface of the rollers. The bottom of the conveyor belt is adapted to abut against the coil.

[0005] Preferably, the lead-out portion of the coil passes sequentially to the right through the conveyor belt, guide frame, and discharge port, and is wound around the outer surface of the foil winding mold, with the lead-out portion of the coil being horizontally distributed.

[0006] Preferably, support columns are fixedly installed on the top of both the front and rear sides of the inner wall of the support plate, and a bidirectional lead screw is installed on the bottom of the inner side of the support plate. Two sets of sliders slide on the outer surface of the bidirectional lead screw. A moving plate is fixedly installed on one side of the slider. Support shaft heads are rotatably installed on the top of the inner walls of the two sets of moving plates. An installation groove is opened on the side of the support shaft head facing the support column. The support column is adapted to be inserted into the installation groove and provides rotational support for the material rod and the coil.

[0007] Preferably, multiple sets of slots are provided at both ends of the material rod, and multiple sets of insert rods are fixedly connected to the end of the support shaft facing the material rod, and the insert rods are adapted to be inserted into the slots.

[0008] Preferably, guide posts are fixedly connected to the middle of the front and rear sides of the inner wall of the support plate, and the guide posts are adapted to penetrate the inner wall of the moving plate.

[0009] Preferably, the support frame is located in the middle of the inner wall of the mounting frame, and the upper and lower sides of the support frame abut against the upper and lower sides of the inner wall of the conveyor belt, respectively.

[0010] Preferably, the conveyor belt is provided with limiting strips on both the front and rear sides, and the lead-out part of the coil is limited between the two sets of limiting strips.

[0011] Preferably, the upper and lower ends of the spring are elastically connected to the support plate and the device box, respectively, and the spring is compressed and positioned below the support plate.

[0012] The beneficial effects of this invention are as follows: 1. This device has been redesigned to adapt to the angle changes of the coil lead-out section by rotating the coil, material rod, and device box as a whole. This avoids changes in the contact area between the coil lead-out section and other components, effectively maintaining the stability of the coil tension. To achieve this, the device box used to install the material rod and coil is designed to be rotatable. The traditional pressure roller is abandoned in favor of a guide frame that horizontally guides the coil lead-out section. The guide frame is fixedly connected to the device box. As the coil lead-out section is wound around the outer surface of the foil winding mold and continues to be drawn out with the mold's rotation, if the foil winding mold causes an angular shift in the coil lead-out section, the guide frame, guided by the coil lead-out section, can rotate the entire device box, preventing any contact angle shift between the coil lead-out section and the opening of the guide frame. This design significantly reduces surface tension fluctuations in the coil lead-out section, effectively ensuring the winding quality of the coil.

[0013] 2. Furthermore, this device also provides elastic support to the support plate containing the coil by means of a fixed column and spring located inside the device box. The spring is compressed and the rebound force is used to continuously push the support plate and the coil upward, so that the top of the coil and its lead-out part can always be in contact with the bottom of the conveyor belt. The top of the coil generates friction by abutting against the bottom of the conveyor belt. When the coil is led out to the right and wound on the outer surface of the foil winding die, it will drive the conveyor belt and roller to rotate. The resistance and friction generated by its movement are used to maintain the surface tension of the coil. As the coil is led out, the radius of the coil on the outer surface of the material rod will continue to decrease. At this time, the spring can keep the top of the coil always in contact with the tension module, effectively improving the stability of the device.

[0014] 3. Finally, the structure for disassembling and assembling the material rod and coil has been redesigned, enabling efficient replacement and installation of the coil. Specifically, the device is equipped with a material rod for winding and placing the coil, with multiple slots at both ends. The material rod is rotated and installed by the support shafts inside two sets of moving plates that slide on the inner side of the support plate. Multiple sets of plug rods on one end of the support shafts are used to connect to or disconnect from the slots, enabling the support shafts to install or remove the material rod. To achieve synchronous reverse movement of the two sets of support shafts, a bidirectional screw at the bottom of the support plate drives two sets of sliders to slide, thus achieving highly efficient disassembly and assembly of the coil and significantly improving the practicality of the device. Attached Figure Description

[0015] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles of this application in a clear and understandable manner.

[0016] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein: Figure 1 This is a front view diagram of the overall structure of the present invention; Figure 2 This is a side view of the overall structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A; Figure 4 This is a front sectional view of the overall structure of the present invention; Figure 5 This is a schematic diagram of the structure of the support plate, fixed column, guide column, bidirectional lead screw, slider, moving plate and support shaft head of the present invention; Figure 6 This is a schematic diagram showing the separation of the tension module and the guide frame of the present invention; Figure 7 This is a schematic diagram showing the separation of the support plate, guide column, bidirectional lead screw, slider, motion plate, and support shaft head of the present invention. Figure 8 This is a side sectional view of the device housing of the present invention; Figure 9 For the present invention Figure 8 Enlarged schematic diagram of the structure at point B.

[0017] The components are as follows: 1. Support; 2. Device box; 3. Discharge port; 4. Mounting groove; 5. Foil winding mold; 6. Tension module; 61. Mounting frame; 62. Support frame; 63. Roller; 64. Conveyor belt; 65. Limiting strip; 7. Guide frame; 8. Support plate; 9. Fixed column; 10. Feed port; 11. Guide column; 12. Bidirectional lead screw; 13. Slider; 14. Motion plate; 15. Support shaft head; 16. Material rod; 17. Coil; 18. Spring; 19. Insert rod; 20. Support column; 21. Slot. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0019] Please see Figures 1-9 This embodiment discloses a transformer foil winding lead device, including a support 1, and further comprising: Device box 2 is rotatably mounted in the middle of support 1. Two sets of fixing columns 9 are fixedly installed inside device box 2. Support plate 8 and spring 18 are slidably installed on the outer surface of the fixing column 9. A detachable material rod 16 is rotatably installed on the inner wall of the support plate 8. A coil 17 is wound on the outer surface of the material rod 16. A feeding port 10 and a discharge port 3 are respectively opened on the left and right sides of device box 2. A guide frame 7 is fixedly installed inside the discharge port 3. The support plate 8 is elastically supported inside device box 2 by spring 18. Tension module 6 is installed inside device box 2. The tension module 6 includes a mounting frame 61 fixedly installed on the top of the inner wall of the device box 2. A support frame 62 is fixedly installed in the middle of the inner wall of the mounting frame 61. Two sets of rollers 63 are rotatably installed on the inner wall of the mounting frame 61. A conveyor belt 64 is movably sleeved on the outer surface of the rollers 63. The bottom of the conveyor belt 64 is adapted to abut against the coil 17. This device has been redesigned to adapt to the angle changes of the coil 17 lead-out portion by rotating the coil 17, material rod 16, and device box 2 as a whole. This avoids changes in the contact area between the coil 17 lead-out portion and other components, effectively maintaining the tension stability of the coil 17. To achieve this, the device box 2, used to install the material rod 16 and coil 17, is designed to be rotatable. The traditional pressure roller is abandoned, and instead, a guide frame 7 is used to horizontally guide the lead-out portion of the coil 17. The guide frame 7 is fixedly connected to the device box 2. When the lead-out portion of the coil 17 is wound around the outer surface of the foil winding mold 5 and continuously extended as the foil winding mold 5 rotates, the foil winding mold 5 causes an angular shift in the lead-out portion of the coil 17. This is achieved by rotating the device box 2 as a whole under the guidance of the guide frame 7, ensuring that the lead-out portion of the coil 17 does not experience an angular shift in contact with the opening of the guide frame 7. This design significantly reduces the surface tension fluctuation of the lead-out portion of the coil 17, thereby effectively ensuring the winding quality of the coil 17.

[0020] Then, the device also provides elastic support for the support plate 8 containing the coil 17 by setting a fixed column 9 and a spring 18 located inside the device box 2. The spring 18 is compressed and the rebound force is used to continuously push the support plate 8 and the coil 17 upward, so that the top of the coil 17 and its lead-out part can always be in contact with the bottom of the conveyor belt 64. The top of the coil 17 abuts against the bottom of the conveyor belt 64 and generates friction. When the coil 17 is led out to the right and wound on the outer surface of the foil winding mold 5, it will drive the conveyor belt 64 and the roller 63 to rotate. The resistance and friction generated by its movement are used to maintain the surface tension of the coil 17. As the coil 17 is led out, the radius of the coil 17 on the outer surface of the material rod 16 will continue to decrease. At this time, the spring 18 can keep the top of the coil 17 always in contact with the tension module 6, which effectively improves the stability of the device.

[0021] In this embodiment, the lead-out portion of the coil 17 passes sequentially to the right through the conveyor belt 64, the guide frame 7, and the discharge port 3, and is wound around the outer surface of the foil winding mold 5. The lead-out portion of the coil 17 is horizontally distributed. like Figure 1 , Figure 4 As shown, the top of coil 17 extends to the right and mates with the bottom of conveyor belt 64 to obtain friction. It then continues to the right through the interior of guide frame 7 and finally wraps around the outer surface of foil winding mold 5. When foil winding mold 5 rotates, the lead-out portion of coil 17 will change angle, and through guide frame 7, it will drive the entire device box 2 to rotate accordingly, keeping the lead-out portion of coil 17 in contact with guide frame 7. Figure 4 The contact state in the middle.

[0022] In this embodiment, support columns 20 are fixedly installed on the top of both the front and rear sides of the inner wall of the support plate 8. A bidirectional lead screw 12 is installed on the bottom of the inner side of the support plate 8. Two sets of sliders 13 slide on the outer surface of the bidirectional lead screw 12. A moving plate 14 is fixedly installed on one side of the slider 13. A support shaft head 15 is rotatably installed on the top of the inner wall of both sets of moving plates 14. An installation groove 4 is opened on the side of the support shaft head 15 facing the support column 20. The support column 20 is adapted to be inserted into the installation groove 4 and provides rotational support for the material rod 16 and the coil 17. like Figure 7 As shown, this device redesigns the structure for disassembling and assembling the rod 16 and coil 17, achieving efficient replacement and installation of the coil 17. Specifically, the device is equipped with a rod 16 for winding and placing the coil 17, with multiple slots 21 at both ends. The rod 16 is rotated and installed by the support shaft heads 15 inside the two sets of moving plates 14 slidably mounted on the inner side of the support plate 8. Multiple sets of insert rods 19 at one end of the inner side of the support shaft head 15 are adapted to insert into or disengage from the slots 21, enabling the installation or removal of the rod 16 by the support shaft head 15. To achieve synchronous reverse movement of the two sets of support shaft heads 15, a bidirectional lead screw 12 at the bottom of the support plate 8 drives two sets of sliders 13 to slide, thereby achieving highly efficient disassembly and assembly of the coil 17 and significantly improving the practicality of the device.

[0023] In this embodiment, multiple sets of slots 21 are provided at both ends of the material rod 16, and multiple sets of insert rods 19 are fixedly connected to one end of the support shaft head 15 facing the material rod 16. The insert rods 19 are adapted to be inserted into the slots 21. like Figure 7 As shown, the slots 21 at both ends of the material rod 16 can be adapted to and inserted into the insertion rod 19, so that the support shaft head 15 can achieve rotational support and fixation of the material rod 16.

[0024] In this embodiment, guide posts 11 are fixedly connected to the middle of the front and rear sides of the inner wall of the support plate 8, and the guide posts 11 are adapted to penetrate the inner wall of the motion plate 14. like Figure 7 As shown, when the bidirectional lead screw 12 and slider 13 are in operation, they will drive the two sets of motion plates 14 to move. At this time, the support column 20, the mounting groove 4, and the guide column 11 can all provide guidance for the movement of the motion plate 14.

[0025] In this embodiment, the support frame 62 is located in the middle of the inner wall of the mounting frame 61, and the upper and lower sides of the support frame 62 abut against the upper and lower sides of the inner wall of the conveyor belt 64, respectively. like Figure 4 As shown, the support frame 62 abuts against the inner wall of the conveyor belt 64 to keep the bottom of the conveyor belt 64 in a horizontal state, thereby providing guidance and friction for the lead-out part of the coil 17.

[0026] In this embodiment, the conveyor belt 64 is provided with limiting strips 65 on both the front and rear sides, and the lead-out part of the coil 17 is limited between the two sets of limiting strips 65. like Figure 6 and Figure 8 As shown, the limiting strips 65 set on both sides of the conveyor belt 64 can provide limiting and correction functions for both sides of the coil 17, preventing the coil 17 from deviating when the winding is led out.

[0027] In this embodiment, the upper and lower ends of the spring 18 are elastically connected to the support plate 8 and the device box 2 respectively, and the spring 18 is compressed and disposed below the support plate 8. like Figure 2 As shown, the spring 18 is used to provide elastic support for the support plate 8 and the coil 17, and the elastic force of the spring 18 is used to ensure that the coil 17 is always in contact with the conveyor belt 64, so as to keep the coil 17 out smoothly.

[0028] Working principle: When this device is in operation: First, such as Figure 2 As shown, the bidirectional lead screw 12 is started and drives the two sets of sliders 13 and motion plates 14 to move synchronously and in opposite directions. The support column 20 is adapted to be inserted into the mounting slot 4. The material rod 16 and coil 17 are placed into the inside of the device box 2 along the feeding port 10. The two ends of the material rod 16 are respectively aligned with the two sets of support shaft heads 15. The bidirectional lead screw 12 is reversed, which drives the two sets of sliders 13 and motion plates 14 to move synchronously and in opposite directions. The support shaft head 15 drives the slot 21 to approach the material rod 16 and inserts the slot 21 into the mounting slot 4, thus completing the fixation of the material rod 16 and coil 17. Then, the support plate 8, the feed rod 16, and the coil 17 are supported by the spring 18, and the coil 17 abuts against the tension module 6 upwards, generating contact pressure, leading the coil 17 to the right and horizontally through the interior of the guide frame 7, and then into the outer surface of the foil winding mold 5, as shown. Figure 4 As shown, the top of coil 17 abuts against conveyor belt 64, and friction is generated between them through pressure to keep the lead-out part of coil 17 in a state of sufficient tension. Finally, the foil winding mold 5 rotates, causing the coil 17 to continuously wind around the outer surface of the foil winding mold 5. When the foil winding mold 5 rotates the lead-out portion of the coil 17 by a certain angle, the angle of the lead-out portion of the coil 17 will change. At this time, the lead-out portion of the coil 17 will apply pressure to the guide frame 7, causing the entire device box 2 to rotate around the rotating support of the support 1, keeping the lead-out portion of the coil 17 always in a straight state. Inside the device box 2, the lead-out portion of the coil 17 is clamped and distributed between the tension module 6, the material rod 16, and the guide frame 7, as shown. Figure 4 As shown, the lead-out portion of coil 17 will always maintain a proper fit and contact with the inner wall of conveyor belt 64 and guide frame 7 without bending. As coil 17 continuously leads out of the winding, the radius of the winding portion of coil 17 outside the material rod 16 gradually decreases. At this time, spring 18 will push support plate 8 and coil 17 to move upward continuously, so that the top lead-out portion of coil 17 can always maintain a horizontal fit and contact with the bottom of conveyor belt 64.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A transformer foil winding lead device, comprising a support (1), characterized in that, Also includes: The device box (2) is rotatably mounted in the middle of the support (1). Two sets of fixed columns (9) are fixedly installed inside the device box (2). A support plate (8) and a spring (18) are slidably mounted on the outer surface of the fixed column (9). A detachable material rod (16) is rotatably mounted on the inner wall of the support plate (8). A coil (17) is wound around the outer surface of the material rod (16). A feeding port (10) and a discharge port (3) are respectively opened on the left and right sides of the device box (2). A guide frame (7) is fixedly installed inside the discharge port (3). The support plate (8) is elastically supported inside the device box (2) by the spring (18). A tension module (6) is installed inside the device box (2). The tension module (6) includes a mounting frame (61) fixedly installed on the top of the inner wall of the device box (2). A support frame (62) is fixedly installed in the middle of the inner wall of the mounting frame (61). Two sets of rollers (63) are rotatably installed on the inner wall of the mounting frame (61). A conveyor belt (64) is movably sleeved on the outer surface of the roller (63). The bottom of the conveyor belt (64) is adapted to abut against the coil (17).

2. The transformer foil winding lead device according to claim 1, characterized in that, The lead-out portion of the coil (17) passes through the conveyor belt (64), guide frame (7), and discharge port (3) to the right and is wound around the outer surface of the foil winding mold (5). The lead-out portion of the coil (17) is horizontally distributed.

3. The transformer foil winding lead device according to claim 2, characterized in that, Support columns (20) are fixedly installed on the top of the front and rear sides of the inner wall of the support plate (8). A two-way screw (12) is installed on the bottom of the inner side of the support plate (8). Two sets of sliders (13) slide on the outer surface of the two-way screw (12). A motion plate (14) is fixedly installed on one side of the slider (13). A support shaft head (15) is rotatably installed on the top of the inner wall of the two sets of motion plates (14). An installation groove (4) is opened on the side of the support shaft head (15) facing the support column (20). The support column (20) is adapted to be inserted into the installation groove (4) and provides rotational support for the material rod (16) and the coil (17).

4. A transformer foil winding lead device according to claim 3, characterized in that, Multiple slots (21) are provided at both ends of the material rod (16). Multiple sets of insert rods (19) are fixedly connected to one end of the support shaft head (15) facing the material rod (16). The insert rods (19) are adapted to be inserted into the slots (21).

5. A transformer foil winding lead device according to claim 4, characterized in that, The middle of the front and rear sides of the inner wall of the support plate (8) is fixedly connected to guide columns (11), and the guide columns (11) are adapted to penetrate the inner wall of the motion plate (14).

6. A transformer foil winding lead device according to claim 5, characterized in that, The support frame (62) is located in the middle of the inner wall of the mounting frame (61), and the upper and lower sides of the support frame (62) abut against the upper and lower sides of the inner wall of the conveyor belt (64), respectively.

7. A transformer foil winding lead device according to claim 6, characterized in that, The conveyor belt (64) is provided with limiting strips (65) on both the front and rear sides, and the lead-out part of the coil (17) is limited between the two sets of limiting strips (65).

8. A transformer foil winding lead device according to claim 7, characterized in that, The upper and lower ends of the spring (18) are elastically connected to the support plate (8) and the device box (2) respectively, and the spring (18) is compressed and set below the support plate (8).

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