Power transformer winding and rubber coating all-in-one machine and manufacturing method thereof

Abstract

The invention discloses a power transformer winding and rubber coating all-in-one machine and a manufacturing method thereof, and belongs to the field of transformer coil production.The power transformer winding and rubber coating all-in-one machine comprises a base plate, a control terminal and a winding framework, a feeding mechanism, a rotating mechanism and a winding mechanism are sequentially arranged on the surface of the base plate in the horizontal direction, and a transverse moving carrying mechanism is arranged above the feeding mechanism; and an adhesive tape bracket is arranged below the winding mechanism. The self-adaptive retaining wall adhesive tape with thermal expansion compensation and magnetic field response characteristics is manufactured, the magnetic field of the permanent magnet column is utilized to drive the modified magneto-rheological layer carbonyl iron powder to be directionally arranged during rubber coating rotation, the seepage force of the pressure-sensitive adhesive to a coil gap is enhanced, the framework is triggered to contract when the coil works and the temperature rises to the preset phase change temperature, and the self-adaptive retaining wall adhesive tape is formed. Thermal expansion of the coil is actively compensated, accelerated aging of extruded insulation paper is avoided, a chain structure is formed in a coil magnetic field through the modified magnetorheological layer, the hardness of the adhesive tape is synchronously improved to resist vibration impact, and a heat conduction network is constructed to improve the heat dissipation efficiency.

Description

Technical Field

[0001] This invention relates to the field of transformer coil manufacturing technology, and in particular to an integrated machine for winding and coating power transformers and its manufacturing method. Background Technology

[0002] In the field of power transformer manufacturing, winding and coating are the core processes that determine the reliability of the product. The winding and coating processes are mostly achieved by integrated winding and coating machines. In existing winding and coating processes, the tape wrapped by conventional coating mechanisms only contacts the surface of the coil. The adhesive cannot effectively penetrate into the gaps of the tightly wound copper wire, resulting in insufficient bonding strength between the inter-turn insulation paper and the coil. When the power transformer is under load, the winding undergoes micro-displacement under the periodic Lorentz force generated by the interaction of the leakage magnetic field and the current. Over a long period of time, this will cause a vicious cycle of "coil loosening - insulation wear - inter-turn short circuit", which is one of the main causes of transformer burnout. Under high temperature conditions, due to the difference in the thermal expansion coefficients of materials, the copper coil of the power transformer will expand more violently than the insulating paper. However, the existing tape does not have an active thermal compensation mechanism. The radial expansion stress of the coil will continuously squeeze the insulating tape between the layers, which will accelerate the aging of the insulating paper and affect the long-term safety of the transformer. To address these issues, a power transformer winding and coating integrated machine and its manufacturing method are proposed. Summary of the Invention

[0003] The purpose of this invention is to solve the problem of limited tape performance in the production of transformer coils in the prior art, and to propose an integrated machine for winding and wrapping power transformers and its manufacturing method.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A power transformer winding and coating integrated machine includes a base plate, a control terminal and a winding frame. The surface of the base plate is provided with a feeding mechanism, a rotating mechanism and a winding mechanism in sequence in the horizontal direction. A transverse conveying mechanism is provided above the feeding mechanism and a tape support is provided below the winding mechanism. The feeding mechanism includes a slide rail mounted on the surface of the substrate, a stepper motor is provided on the outside of the slide rail, a stepper platform is slidably connected to the slide rail, a storage block is provided on the upper surface of the stepper platform, and a traction component is provided on the side of the storage block facing the winding mechanism. The lateral conveying mechanism includes a conveying gripper, and a cutting blade is installed on the side of the conveying gripper near the winding mechanism; The rotating mechanism includes a fixed frame, a rotating motor is provided on the outer side wall of the fixed frame, a glue separating component is provided between the fixed frame and the tape support, two main shafts are arranged opposite each other on both sides of the fixed frame, a gripping actuator and a positioning actuator are respectively installed at the output ends of the two main shafts, and a tape pressing block is provided below the gripping actuator; The side wall of the tape holder is connected to a tape frame via a high-resistance rotating shaft, and an adaptive retaining wall tape is installed inside the tape frame.

[0005] Preferably, the upper surface of the storage block is provided with multiple limiting slots that match the winding skeleton, which are used to limit the winding skeleton during the stepping conveying process. The upper surface of the storage block is provided with a cutting groove that matches the cutting blade, which is used to compensate for the distance of the cutting blade during the gripping process.

[0006] Preferably, the traction assembly includes a distance compensation rod, one end of which is fixedly connected to the side wall of the block, and the other end of which is equipped with a traction clamp for traction of the adaptive retaining wall tape.

[0007] Preferably, the gripping actuator has two inner support plates with matching winding skeletons on the side facing the positioning actuator. The inner support plates have permanent magnet columns inside, which are fixedly connected to the gripping actuator to enhance the adhesion of the adaptive retaining wall tape.

[0008] Preferably, the two inner support plates are arranged at an angle relative to each other, such that the outer diameter of the two inner support plates is smaller than the inner diameter of the winding skeleton to allow it to pass through. The inner sidewalls of the two inner support plates are fixedly connected with inner support drive plates for opening the inner support plates. When the two inner support plates are opened, they are interference-fitted with the winding skeleton to fix the winding skeleton.

[0009] Preferably, the positioning actuator has a clamping groove matching the winding skeleton on the side facing the gripping actuator, and the center of the positioning actuator has a top block matching the inner support drive plate. The top block pushes the inner support drive plate to deform and drive the inner support plate to open.

[0010] Preferably, the adhesive separating assembly includes a support plate, and a limiting gripper is installed on the side of the support plate facing the gripping actuator. The gripping gripper ensures the tension of the adaptive retaining wall tape, providing the necessary conditions for the adhesive cutting blade to cut the adaptive retaining wall tape.

[0011] Preferably, the adaptive retaining wall tape includes a double-layer substrate, with a thermal expansion compensation layer formed between the double-layer substrate. The thermal expansion compensation layer contains a shape memory alloy skeleton to compensate for the thermal expansion and contraction of the pure copper coil during operation. A modified magnetorheological layer is coated on the surface of the double-layer substrate, and a pressure-sensitive adhesive is coated on the surface of the modified magnetorheological layer.

[0012] A manufacturing method based on a power transformer winding and coating integrated machine includes the following steps: S1. Raw material pretreatment: Polyimide film is used as substrate after plasma surface treatment. Two sets of polyimide film substrates need to be prepared. The shape memory alloy skeleton is trained by Ni-Ti alloy wire. The shape memory training is used to preset the compensation deformation. Carbonyl iron powder, silicone oil and nano silica are mixed and modified to form a premix of modified magnetorheological layer. S2. Preparation of thermal expansion compensation layer: A micro-gravure coating process is used to form a spaced limiting point array on the bottom substrate. The shape memory alloy skeleton is arranged and fixed in the gaps of the limiting point array. After covering the upper substrate, it is composited by hot pressing. S3, Modified magnetorheological layer coating: The premixed material described in S1 is coated on the upper substrate using a slot coating process and then cured by UV. S4. Pressure-sensitive adhesive coating: After the modified magnetorheological layer has cured, apply pressure-sensitive adhesive on top of it and dry it. S5. Finished Product Processing: After the prepared adaptive retaining wall tape is cut into strips with width matching the winding skeleton, it is wound up. The tension during the winding process is less than 2 Newtons to prevent irreversible deformation of the shape memory alloy skeleton, thus completing the manufacturing of the adaptive retaining wall tape.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention trains the shape memory of the shape memory skeleton to preset the deformation, and forms a limited dot matrix on the substrate to accurately arrange the skeleton by combining micro-gravure coating process. Then, it is hot-pressed, coated with a modified magnetorheological layer in a slit and UV cured, and finally coated with pressure-sensitive adhesive, dried and cut. This invention can produce an adaptive retaining tape with both thermal expansion compensation and magnetic field response characteristics.

[0014] 2. This invention sets up an adaptive baffle tape, which triggers the skeleton to shrink when the coil heats up to the preset phase change temperature, actively compensating for the thermal expansion of the coil and avoiding the compression of the insulating paper to accelerate aging. By modifying the magnetorheological layer to form a chain structure in the magnetic field of the coil, the hardness of the tape is simultaneously increased to resist vibration and impact, and a heat-conducting network is constructed to improve heat dissipation efficiency.

[0015] 3. By setting up a gripping actuator, the present invention utilizes the magnetic field of the permanent magnet column to drive the carbonyl iron powder of the modified magnetorheological layer to oriented alignment during the coating rotation, thereby enhancing the penetration force of the pressure-sensitive adhesive into the coil gap and improving the firmness of the coating. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a power transformer winding and coating integrated machine and its manufacturing method proposed in this invention; Figure 2 for Figure 1Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the rotating mechanism and the winding mechanism in the integrated winding and coating machine and manufacturing method of the power transformer proposed in this invention. Figure 4 This is a structural assembly diagram of the winding frame and the storage block in the integrated winding and coating machine and manufacturing method of the power transformer proposed in this invention. Figure 5 This is a schematic diagram of the rotating mechanism in the integrated winding and coating machine for power transformers and its manufacturing method proposed in this invention. Figure 6 This is a cross-sectional view of the rotating mechanism in the state before coating in the integrated winding and coating machine and manufacturing method of the power transformer proposed in this invention. Figure 7 This is a schematic diagram of the gripping actuator in the integrated winding and coating machine for power transformers and its manufacturing method proposed in this invention. Figure 8 This is a schematic diagram of the positioning actuator in the integrated winding and coating machine for power transformers and its manufacturing method proposed in this invention; Figure 9 This is a structural assembly diagram of the adaptive retaining wall tape used in the integrated winding and coating machine and manufacturing method of the power transformer proposed in this invention. Figure 10 for Figure 9 Enlarged view of point B in the middle.

[0017] In the diagram: 1. Substrate; 2. Control terminal; 3. Winding frame; 4. Lateral transport mechanism; 5. Tape support; 501. Tape frame; 6. Slide rail; 7. Stepper motor; 8. Stepper platform; 9. Storage block; 10. Transport gripper; 11. Glue cutter blade; 12. Fixing frame; 1201. Rotary motor; 13. Spindle; 14. Gripping actuator; 15. Positioning actuator; 16. Tape pressing block; 17. Adaptive retaining wall tape; 1701. Double-layer substrate; 1702. Shape memory alloy frame; 1703. Modified magnetorheological layer; 1704. Pressure-sensitive adhesive; 18. Distance compensation rod; 19. Traction clamp; 20. Inner support plate; 21. Permanent magnet column; 22. Inner support drive plate; 23. Top block; 24. Support plate; 25. Limiting gripper. Detailed Implementation

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

[0019] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Example, refer to Figures 1 to 10 A power transformer winding and coating integrated machine and its manufacturing method are disclosed. The machine includes a base plate 1, a control terminal 2 and a winding frame 3. The surface of the base plate 1 is provided with a feeding mechanism, a rotating mechanism and a winding mechanism in sequence in the horizontal direction. A transverse conveying mechanism 4 is provided above the feeding mechanism and a tape support 5 is provided below the winding mechanism. The feeding mechanism includes a slide rail 6 mounted on the surface of the substrate 1, a stepper motor 7 on the outside of the slide rail 6, a stepper stage 8 slidably connected to the slide rail 6, a placement block 9 on the upper surface of the stepper stage 8, and a traction component on the side of the placement block 9 facing the winding mechanism. The transverse transport mechanism 4 includes a transport gripper 10 for gripping the winding skeleton 3 and transferring it to the rotating mechanism. A cutting blade 11 is installed on the side of the transport gripper 10 near the winding mechanism for cutting the adaptive retaining wall tape 17. The rotating mechanism includes a fixed frame 12. A rotating motor 1201 is provided on the outer wall of the fixed frame 12. The rotating motor 1201 drives the main shaft 13 to rotate at high speed to switch the processing surface of the winding skeleton 3 and realize the winding function. A glue separating component is provided between the fixed frame 12 and the tape support 5. Two main shafts 13 are arranged opposite each other on both sides of the fixed frame 12. A gripping actuator 14 and a positioning actuator 15 are respectively installed at the output ends of the two main shafts 13. A tape pressing block 16 is provided below the gripping actuator 14 to push the bonding interface of the adaptive retaining wall tape 17 to the surface of the coil after winding. The tape support 5 is rotatably connected to a high-resistance shaft on its side wall. The high-resistance shaft is used to provide constant damping force to prevent the tape from rotating, thereby maintaining the tape tension. The tape support 5 is connected to a tape frame 501 via the high-resistance shaft. An adaptive retaining wall tape 17 is installed inside the tape frame 501.

[0022] Furthermore, the upper surface of the storage block 9 is provided with multiple limiting slots that match the winding skeleton 3, which are used to limit the winding skeleton 3 during the stepping conveying process. The upper surface of the storage block 9 is provided with a cutting groove that matches the cutting blade 11. The depth of the cutting groove is greater than the length of the cutting blade 11 and matches the movement trajectory of the conveying gripper 10, which is used to compensate for the distance of the cutting blade 11 during the gripping process. Furthermore, the traction assembly includes a distance compensation rod 18, one end of which is fixedly connected to the side wall of the placement block 9, and the other end of which is equipped with a traction clamp 19 for traction of the adaptive retaining wall tape 17. Furthermore, the gripping actuator 14 is provided with two inner support plates 20 matching the winding skeleton 3 on the side facing the positioning actuator 15. The inner support plate 20 is provided with a permanent magnet column 21 inside. The permanent magnet column 21 is fixedly connected to the gripping actuator 14 to enhance the adhesion of the adaptive retaining wall tape 17. The further advantage of the above is that, during the high-speed rotation of the gripper 14 in the overmolding process, the magnetic field generated by the permanent magnet column 21 causes the carbonyl iron powder in the modified magnetorheological layer 1703 to oriented and form a chain structure, which enhances the penetration ability of the pressure-sensitive adhesive 1704 into the coil gap to improve adhesion and increase the firmness of the overmolding.

[0023] Furthermore, the two inner support plates 20 are inclined relative to each other, so that the outer diameter of the two inner support plates 20 is smaller than the inner diameter of the winding frame 3 to allow it to pass through. The inner sidewalls of the two inner support plates 20 are fixedly connected to the inner support drive plates 22 for opening the inner support plates 20. When the two inner support plates 20 are opened, they are interference-fitted with the winding frame 3 to fix the winding frame 3. The interference amount is 0.1mm. It should be noted that the inner support plate 20 is made of magnetically conductive metal material.

[0024] Furthermore, the positioning actuator 15 is provided with a clamping slot matching the winding skeleton 3 on the side facing the gripping actuator 14, and the center of the positioning actuator 15 is provided with a top block 23 matching the inner support drive plate 22. The top block 23 pushes the inner support drive plate 22 to deform it so as to drive the inner support plate 20 to open. Furthermore, the adhesive separation assembly includes a support plate 24, on the side of the support plate 24 facing the gripper 14, a limiting gripper 25 is installed, which ensures the tension of the adaptive barrier tape 17 by clamping, thus providing the preconditions for the adhesive cutting blade 11 to cut the adaptive barrier tape 17. Furthermore, the adaptive retaining wall tape 17 includes a double-layer substrate 1701, with a thermal expansion compensation layer formed between the double-layer substrate 1701. The thermal expansion compensation layer contains a shape memory alloy skeleton 1702, which is used to compensate for the thermal expansion and contraction of the pure copper coil during operation. A modified magnetorheological layer 1703 is coated on the surface of the double-layer substrate 1701, and a pressure-sensitive adhesive 1704 is coated on the surface of the modified magnetorheological layer 1703.

[0025] The further advantage of the above is that the shape memory alloy skeleton 1702 can restore the pre-programmed shape when the coil is heated to the preset phase change temperature, actively shrinking the volume of the thermal expansion compensation layer to compensate for the thermal expansion of the coil and avoid the coil expansion and compression causing the insulation paper to age faster. At the same time, the modified magnetorheological layer 1703 can use the working magnetic field of the coil to form a chain structure, which not only significantly improves the hardness of the tape to resist vibration and shock and reduce coil displacement, but also constructs an efficient heat conduction network to improve the heat dissipation efficiency of the coil.

[0026] The manufacturing steps of the adaptive retaining wall tape 17 in this invention are as follows: surface treatment of two sets of polyimide film substrates; shape memory training and pre-compensation deformation of Ni-Ti alloy wire memory alloy skeleton 1702; preparation of modified magnetorheological layer 1703 premix by mixing carbonyl iron powder, silicone oil and nano silica; formation of spaced limiting point array on the bottom substrate using micro-gravure coating process; hot pressing composite after arranging and fixing the memory alloy skeleton 1702 in the gap of the limiting point array and covering the upper substrate; coating the premix on the upper substrate using slit coating process and UV curing; coating pressure sensitive adhesive 1704 on the cured modified magnetorheological layer 1703 and drying; and cutting the tape into strips matching the width of the winding skeleton 3.

[0027] In use, the adaptive retaining wall tape 17 is peeled off and placed in the working area of ​​the limiting gripper 25 with the tape end slightly protruding from the working area of ​​the limiting gripper 25, so that the traction clamp 19 can grasp it. The operation control terminal 2 drives the limiting gripper 25 to clamp and limit the adaptive retaining wall tape 17. The winding skeleton 3 is placed in the limiting slot of the placement block 9. The stepper motor 7 drives the stepping platform 8 to transport the winding skeleton 3 one by one to the transport station along the slide rail 6. When the winding skeleton 3 is in the transport station, the transport gripper 10 driven by the transverse transport mechanism 4 descends to grasp the winding skeleton 3. During the grasping process, the tape is cut. The blade 11 enters the blade groove and moves synchronously with the transport gripper 10 within the blade groove to prevent the cutting blade 11 from obstructing the operation of the transport gripper 10. After the transport gripper 10 completes the gripping, it moves the winding frame 3 to the working area of ​​the gripping actuator 14. Then, the spindle 13 extends to drive the gripping actuator 14 toward the winding frame 3, so that the inner support plate 20 enters the interior of the winding frame 3. At the same time, the inner support drive plate 22 presses the top block 23 in the positioning actuator 15. After the inner support drive plate 22 presses the top block 23, it deforms under its own elastic force, thereby pushing the inner support plate 20 to open, so that the inner support plate 20 and the winding frame 3 are interference-fitted, and the gripping is completed. During winding and coating, the winding mechanism installs the wire at the end of the winding frame 3 and then pulls it to the outer wall of the winding frame 3. Then, the main shaft 13 drives the gripping actuator 14 and the positioning actuator 15 to rotate at high speed. The high-speed rotation of the rotating mechanism cooperates with the winding mechanism to move horizontally in sync to complete one layer of winding (this is the existing winding process, which will not be described in detail below). After one layer of winding is completed, the stepper motor 7 drives the stepper platform 8 to translate until the working area of ​​the traction clamp 19 aligns with the rubber head of the adaptive retaining wall tape 17. The control terminal 2 controls the traction clamp 19 to clamp the rubber head of the adaptive retaining wall tape 17. Then, the limit gripper 25 releases the gripper, and the stepper platform 8 translates horizontally, so that the rubber head of the adaptive retaining wall tape 17 passes through the tape pressing block 16. Then, the tape pressing block 16 rises, pushing the bonding interface of the adaptive retaining wall tape 17 to press tightly against the coil after winding. Then, the transverse transport mechanism 4 drives the transport gripper 10 to move to the surface of the tape cutting blade 11 near the end of the tape pressing block 16 and descends, cutting the adaptive retaining wall tape 17 through the tape cutting blade 11. Then, the rotating mechanism rotates at high speed to complete the single-layer coating. During the coating process, in the permanent Under the action of the magnet column 21, the carbonyl iron powder in the modified magnetorheological layer 1703 is oriented to form a chain structure under the action of the magnetic field, which causes the modified magnetorheological layer 1703 to bend and deform. These microstructures deflect downward or upward, pushing the pressure-sensitive adhesive 1704 to penetrate into the gap between the coils, increasing the actual contact area between the pressure-sensitive adhesive 1704 and the surface of the object to be bonded, thereby increasing the adhesion force. After the coating is completed, the limiting jaw 25 clamps the adaptive barrier tape 17, and the transverse transport mechanism 4 drives the transport jaw 10 to move to the surface of the tape pressing block 16 away from the traction clamp 19 and lowers to cut the adaptive barrier tape 17. Then the rotating mechanism rolls again to wrap the remaining tape to the transformer coil, completing the single-layer coating. Then the above steps are repeated until all the coil winding and coating are completed. When the transformer coil with the rubber coating is running, its working current will generate an alternating leakage magnetic field in the transformer coil winding. The modified magnetorheological layer 1703 in the adaptive retaining wall tape 17 can intelligently respond to this working magnetic field, and the carbonyl iron powder inside it will quickly oriented and form a strong chain-like microstructure. It should be noted that under the influence of the alternating leakage magnetic field, the carbonyl iron powder particles in the modified magnetorheological layer 1703 are solidified in the non-liquid polymer matrix, which greatly suppresses the displacement and chain structure breakage of the particles when the magnetic field is switched, so that the chain structure can maintain its integrity under the alternating field, making the chain structure strength weaker than that of the DC field, but significantly higher than that of the zero field state. The modified magnetorheological layer 1703, which forms a chain-like structure, significantly hardens the adaptive retaining wall tape 17, giving it excellent anti-vibration fatigue characteristics. It can suppress coil displacement and fretting wear caused by electromagnetic force or external mechanical vibration during transformer operation, greatly reduce the risk of inter-turn short circuits or insulation damage caused by loose or deformed transformer coils, and directly improve the reliability of long-term transformer operation. At the same time, it constructs a heat-conducting network, enhances the heat conduction rate from the inside of the high-temperature coil to the external insulating medium, and helps to reduce the coil operating temperature. When the transformer load increases, causing the transformer coil operating temperature to reach a preset value (this value is achieved through the austenitic phase transformation initiation temperature of the custom shape memory alloy skeleton 1702, which is existing technology), the shape memory alloy skeleton 1702 restores its pre-programmed shrinkage shape, actively reducing the volume of the thermal expansion compensation layer to offset the radial compressive stress generated by the thermal expansion of the pure copper coil, preventing the expanding coil from excessively compressing the insulating paper (double-layer substrate 1701), thereby slowing down the accelerated aging process of the adaptive retaining tape 17 under the dual action of high temperature and mechanical stress, and providing a guarantee for the long-term safe operation of the transformer.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A power transformer winding and coating integrated machine, comprising a base plate (1), a control terminal (2), and a winding frame (3), characterized in that, The substrate (1) has a feeding mechanism, a rotating mechanism and a winding mechanism arranged sequentially in the horizontal direction on its surface. A transverse conveying mechanism (4) is provided above the feeding mechanism, and a tape support (5) is provided below the winding mechanism. The feeding mechanism includes a slide rail (6) mounted on the surface of the substrate (1), a stepper motor (7) is provided on the outside of the slide rail (6), a stepper platform (8) is slidably connected to the slide rail (6), a storage block (9) is provided on the upper surface of the stepper platform (8), and a traction component is provided on the side of the storage block (9) facing the winding mechanism. The transverse transport mechanism (4) includes a transport gripper (10), and a rubber cutting blade (11) is installed on the side of the transport gripper (10) near the winding mechanism. The rotating mechanism includes a fixed frame (12), a rotating motor (1201) is provided on the outer side wall of the fixed frame (12), a glue separating component is provided between the fixed frame (12) and the tape support (5), two main shafts (13) are arranged opposite each other on both sides of the fixed frame (12), a gripping actuator (14) and a positioning actuator (15) are respectively installed at the output ends of the two main shafts (13), and a tape pressing block (16) is provided below the gripping actuator (14). The side wall of the tape bracket (5) is connected to the tape frame (501) via a high-resistance rotating shaft, and the tape frame (501) contains an adaptive retaining wall tape (17).

2. The integrated winding and coating machine for a power transformer according to claim 1, characterized in that, The upper surface of the storage block (9) is provided with multiple limiting slots for matching the winding skeleton (3), which are used to limit the winding skeleton (3) during the step conveying process. The upper surface of the storage block (9) is provided with a knife groove for matching the cutting blade (11), which is used to compensate for the distance of the cutting blade (11) during the gripping process.

3. The integrated winding and coating machine for a power transformer according to claim 1, characterized in that, The traction assembly includes a distance compensation rod (18), one end of which is fixedly connected to the side wall of the block (9), and the other end of which is equipped with a traction clamp (19) for traction of the adaptive retaining wall tape (17).

4. The integrated winding and coating machine for a power transformer according to claim 1, characterized in that, The gripping actuator (14) has two inner support plates (20) with matching winding skeletons (3) on one side facing the positioning actuator (15). The inner support plate (20) has a permanent magnet column (21) inside. The permanent magnet column (21) is fixedly connected to the gripping actuator (14) to enhance the adhesion of the adaptive retaining wall tape (17).

5. A power transformer winding and coating integrated machine according to claim 4, characterized in that, The two inner support plates (20) are inclined relative to each other, so that the outer diameter of the two inner support plates (20) is smaller than the inner diameter of the winding skeleton (3) so that it can pass through. The inner sidewalls of the two inner support plates (20) are fixedly connected with inner support drive plates (22) for opening the inner support plates (20). When the two inner support plates (20) are opened, they are interference-fitted with the winding skeleton (3) to fix the winding skeleton (3).

6. The integrated winding and coating machine for a power transformer according to claim 4, characterized in that, The positioning actuator (15) has a clamping slot for matching the winding skeleton (3) on the side facing the gripping actuator (14). The center of the positioning actuator (15) has a top block (23) for matching the inner support drive plate (22). The top block (23) pushes the inner support drive plate (22) to deform it so as to drive the inner support plate (20) to open.

7. The integrated winding and coating machine for a power transformer according to claim 1, characterized in that, The adhesive separation assembly includes a support plate (24), on which a limiting gripper (25) is installed on the side facing the gripper (14). By clamping, the tension of the adaptive retaining wall tape (17) is ensured, providing the preconditions for the adhesive cutting blade (11) to cut the adaptive retaining wall tape (17).

8. The integrated winding and coating machine for a power transformer according to claim 1, characterized in that, The adaptive retaining wall tape (17) includes a double-layer substrate (1701), with a thermal expansion compensation layer formed between the double-layer substrate (1701). The thermal expansion compensation layer is provided with a shape memory alloy skeleton (1702) to compensate for the thermal expansion and contraction of the pure copper coil during operation. A modified magnetorheological layer (1703) is coated on the surface of the double-layer substrate (1701), and a pressure-sensitive adhesive (1704) is coated on the surface of the modified magnetorheological layer (1703).

9. The manufacturing method of the integrated winding and coating machine for a power transformer according to any one of claims 1-8, characterized in that, Includes the following steps: S1. Raw material pretreatment: Polyimide film is used as substrate after plasma surface treatment. Two sets of polyimide film substrates need to be prepared. The shape memory alloy skeleton (1702) is trained by Ni-Ti alloy wire. The shape memory training is used to preset the compensation deformation. Carbonyl iron powder, silicone oil and nano silica are mixed and modified to form a premix of modified magnetorheological layer (1703). S2. Preparation of thermal expansion compensation layer: A micro-gravure coating process is used to form a spaced limiting point array on the bottom substrate. The shape memory alloy skeleton (1702) is arranged and fixed in the gap of the limiting point array. After covering the upper substrate, it is composited by hot pressing. S3, Modified magnetorheological layer (1703) coating: The premixed material described in S1 is coated on the upper substrate using a slot coating process and then cured by UV. S4. Pressure-sensitive adhesive (1704) coating: After the modified magnetorheological layer (1703) has cured, the pressure-sensitive adhesive (1704) is coated on it and dried. S5. Finished product processing: After the prepared adaptive retaining wall tape (17) is cut into strips with width matching winding skeleton (3), it is wound up. The tension during the winding process is less than 2 Newtons to prevent the shape memory alloy skeleton (1702) from undergoing irreversible deformation, thus completing the manufacturing of the adaptive retaining wall tape (17).

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