Transformer coil foil winding conductor full round edge processing device
By designing a device for processing the full-circle edge of the transformer coil foil winding conductor, and utilizing a rounding corner and metal shavings collection device, the problem of incomplete burr removal was solved, thereby improving the safety of the transformer and the lifespan of the equipment.
Patent Information
- Application Number
- CN202510932083.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-07
- Publication Date
- 2025-11-11
AI Technical Summary
Existing technologies cannot completely remove burrs from the edges of transformer coil foil windings around conductors, which can cause the insulation layer to puncture when it shrinks, posing a risk of short circuits and explosions. Furthermore, the problem of flying and sticking metal fragments affects safety and equipment lifespan.
Design a transformer coil foil winding conductor full-circle edge processing device, including a corner rounding device, a tool height adjustment device and a metal chip collection device. By adjusting the tool height and cutting width, burrs are eliminated and metal chips are collected to ensure that the edge is rounded and to prevent debris from splashing and sticking.
The burrs were completely eliminated, improving the safety and service life of the transformer, avoiding the risk of insulation puncture, and ensuring the safety of the processing and the stable operation of the equipment.
Smart Images
Figure CN120933057A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of transformer coil processing technology, and more specifically, to a device for processing the full-circle edge of a transformer coil foil-wound conductor. Background Technology
[0002] Power transformer coil conductors are divided into two categories: wire-wound and foil-wound. Foil-wound conductors use copper or aluminum strips. To protect the coil from short circuits and prevent burrs from puncturing the insulation material, which could lead to a short circuit or even an explosion, the edges of foil-wound conductors must be free of burrs. Currently, the processing of foil-wound conductors for transformer coils both domestically and internationally uses roller pressing (edge pressing) to remove burrs from the strip edges. However, this processing method cannot completely remove the burrs; it can only flatten upward-facing burrs, but it cannot remove burrs parallel to the strip. This still poses a risk. During transformer operation, the insulation layer will shrink. When the insulation layer shrinks to the edge of the strip, if the strip edge has sharp corners or sharp edges, it will puncture the insulation layer, causing a short circuit in the coil. This could burn out the coil and potentially cause the transformer to explode.
[0003] Existing equipment uses a roll forming method, which cannot achieve full-circle edge processing of the strip. New equipment needs to be developed specifically for independent processing. Furthermore, the current equipment is an open processing method, and metal shavings generated by the round edge will be trapped inside the strip, with some shavings adhering to the strip edge.
[0004] Therefore, a device for processing the full circular edge of a transformer coil foil winding conductor is proposed to address the above problems. Summary of the Invention
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a transformer coil foil winding conductor full-circle edge processing device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a transformer coil foil winding conductor full-circle edge processing device, including a corner rounding device and a worktable, wherein the corner rounding device is fixedly connected to the top of the worktable, a metal chip collecting device is fixedly connected to the bottom of the corner rounding device, and a tool height adjusting device is provided below the corner rounding device, wherein the bottom of the tool height adjusting device is fixedly connected to the inside of the worktable.
[0007] Preferably, the left side of the corner rounding device is provided with a cutting width adjustment device, the bottom of which is fixedly connected to the top of the processing table, and the left side of the cutting width adjustment device is provided with a first pair of rollers, the bottom of which is fixedly connected to the top of the processing table.
[0008] Preferably, a seven-roller device is provided on the left side of the first pair of rollers device, the bottom of the seven-roller device is fixedly connected to the top of the processing table, and a first pressure table device is provided on the left side of the seven-roller device, the bottom of the first pressure table device is fixedly connected to the top of the processing table.
[0009] Preferably, a straightening device is provided on the left side of the first pressing table device, the bottom of the straightening device is fixedly connected to the top of the processing table, a feeding roller device is provided on the left side of the straightening device, the bottom of the feeding roller device is fixedly connected to the top of the processing table, and a feeding rack is provided on the left side of the feeding roller device.
[0010] Preferably, a pressing device is provided on the right side of the corner rounding device, the top of the pressing device is fixedly connected to the top of the processing table, and a second pair of rollers is provided on the right side of the pressing device, the top of the second pair of rollers is fixedly connected to the top of the processing table.
[0011] Preferably, a second pressing table device is provided on the right side of the second roller device, the top of the second pressing table device is fixedly connected to the top of the processing table, a length counting device is provided on the right side of the second pressing table device, the top of the length counting device is fixedly connected to the top of the processing table, and a receiving machine is provided on the right side of the length counting device.
[0012] The technical effects and advantages of this invention are as follows:
[0013] 1. Compared with the prior art, the transformer coil foil winding conductor full-circle edge processing device is set up with the cooperation of a tool height adjustment device and a corner rounding device. The tool height adjustment device adjusts the height of the tool in the corner rounding device according to the thickness of the metal strip, and then the corner rounding device cuts the edge of the metal strip into a rounded edge, completely eliminating burrs and collapsed edges caused by slitting.
[0014] 2. Compared with the prior art, this transformer coil foil winding conductor full-circle edge processing device absorbs and treats the metal waste generated during the cutting process through a metal waste collection device, preventing the debris from splashing and sticking to the edge of the strip, thereby improving the safety and service life of the device. Attached Figure Description
[0015] Figure 1 This is a front view schematic diagram of the fillet rounding device of the present invention.
[0016] The attached diagram is labeled as follows: 1. Feeding rack; 2. Feeding roller assembly; 3. Alignment device; 4. First pressure table assembly; 5. Seven-roll assembly; 6. First roller assembly; 7. Cutting width adjustment device; 8. Corner rounding device; 9. Edge pressing device; 10. Second roller assembly; 11. Second pressure table assembly; 12. Length counting device; 13. Receiving machine; 14. Tool height adjustment device; 15. Metal shavings collection device. Detailed Implementation
[0017] 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, and 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.
[0018] Example 1
[0019] As attached Figure 1 The transformer coil foil winding conductor full-circle processing device shown includes a corner rounding device 8 fixedly connected to the top of the worktable, a metal chip collection device 15 fixedly connected to the bottom of the corner rounding device 8, and a tool height adjustment device 14 arranged below the corner rounding device 8, the bottom of the tool height adjustment device 14 being fixedly connected to the inside of the worktable.
[0020] In operation, the device first rotates the tool height adjustment device 14 to adjust the height of the tool in the corner rounding device 8 according to the thickness of the metal strip, ensuring that the cutting depth of the corner rounding device 8 meets the requirements of the corner radius. Then, the corner rounding device 8 is started to cut the edge of the slit metal strip, turning the rectangular edge of the metal strip into a rounded edge, completely eliminating burrs and edge collapse caused by slitting. At the same time, the metal chip collection device 15 is started to absorb and treat the metal waste generated during the cutting process, preventing the chips from splashing and sticking to the edge of the strip, thus improving the safety and service life of the device.
[0021] Example 2
[0022] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figure 1 As shown below, see details:
[0023] In a preferred embodiment, a cutting width adjustment device 7 is provided on the left side of the corner rounding device 8. The bottom of the cutting width adjustment device 7 is fixedly connected to the top of the processing table. The cutting width adjustment device 7 facilitates the adjustment of the burr cutting width on both sides of the metal strip and the fixing of the burr position. A first pair of rollers device 6 is provided on the left side of the cutting width adjustment device 7. The bottom of the first pair of rollers device 6 is fixedly connected to the top of the processing table. The first pair of rollers device 6 can flatten the burrs on the surface of the metal strip and eliminate wrinkles and slight bends on the surface of the metal strip. A seven-roller device 5 is provided on the left side of the first pair of rollers device 6. The bottom of the seven-roller device 5 is fixedly connected to the top of the processing table. The seven-roller device 5 can be used to pull the metal strip and control the tension, guidance, and... To level the metal strip, a first pressure plate device 4 is set on the left side of the seven-roller device 5. The bottom of the first pressure plate device 4 is fixedly connected to the top of the processing table. The first pressure plate device 4 can control the position and tension stability of the metal strip. A blocking device 3 is set on the left side of the first pressure plate device 4. The bottom of the blocking device 3 is fixedly connected to the top of the processing table. The blocking device 3 can isolate the segmented metal strip and transport the metal strip to the first pressure plate device 4. A feeding roller device 2 is set on the left side of the blocking device 3. The bottom of the feeding roller device 2 is fixedly connected to the top of the processing table. The feeding roller device 2 can position and guide the metal strip. A feeding rack 1 is set on the left side of the feeding roller device 2. The feeding rack 1 can place the metal strip.
[0024] In a preferred embodiment, a pressing device 9 is provided on the right side of the corner rounding device 8. The top of the pressing device 9 is fixedly connected to the top of the processing table. The pressing device 9 can make the edge of the metal strip after corner rounding smoother. A second pair of rollers 10 is provided on the right side of the pressing device 9. The top of the second pair of rollers 10 is fixedly connected to the top of the processing table. The second pair of rollers 10 can flatten the cut metal strip. A second pressing table 11 is provided on the right side of the second pair of rollers 10. The top of the second pressing table 11 is fixedly connected to the top of the processing table. The second pressing table 11 is used to control the position and surface tension of the cut metal strip. A length measuring device 12 is provided on the right side of the second pressing table 11. The top of the length measuring device 12 is fixedly connected to the top of the processing table. The length measuring device 12 can measure the length of the cut metal strip and stabilize the conveying tension. A take-up machine 13 is provided on the right side of the length measuring device 12. The take-up machine 13 is used to wind and collect the cut metal strip.
[0025] The working process of this invention is as follows: First, the metal strip is placed above the feeding rack 1. Then, the metal strip enters the interior of the feeding roller device 2. Subsequently, the feeding roller device 2 positions and guides the metal strip. Next, the metal strip enters the interior of the blocking and straightening device 3. Then, the blocking and straightening device 3 cuts and isolates the metal strip, so that the cut metal strip is orderly conveyed to the interior of the first pressure table device 4. Then, the first pressure table device 4 controls the position of the cut metal strip to avoid subsequent processing dimensional deviations due to tension fluctuations. Then, the metal strip enters the interior of the seven-roll device 5, and then... The reverse rotation of the rollers eliminates the bending or wavy deformation of the metal strip, while providing traction power and controlling the feeding speed to synchronize with subsequent processes. Then, the metal strip enters the interior of the first pair of rollers device 6. The rollers in the first pair of rollers device 6 apply uniform pressure to the surface of the metal strip, further flattening fine wrinkles or slight bends, ensuring that the surface of the metal strip is flat, and providing a stable reference for subsequent cutting processing. Then, the metal strip enters the interior of the cutting width adjustment device 7, so that the cutting width adjustment device 7 accurately sets the width to be cut on both sides of the metal strip, and guides the metal strip along the set path into the corner rounding device 8.
[0026] Next, the tool height adjustment device 14 is rotated to adjust the height of the tool in the corner rounding device 8 according to the thickness of the metal strip, ensuring that the cutting depth of the corner rounding device 8 meets the corner radius requirements. Then, the corner rounding device 8 is activated to cut the edge of the slit metal strip, turning the rectangular edge of the metal strip into a rounded edge, completely eliminating burrs and edge collapse caused by slitting. At the same time, the metal chip collection device 15 is activated to absorb and treat the metal waste generated during the cutting process, preventing chips from splashing and sticking to the edge of the strip, improving the safety and service life of the device. Then, the cut metal strip enters the interior of the edge pressing device 9, where the edge pressing device 9 applies pressure to the edge of the metal strip to ensure that the edge is smooth and flat, avoiding... To prevent scratching the insulation layer during subsequent coil winding, the cut metal strip enters the second pair of rollers device 10, which then flattens the surface of the metal strip again to eliminate any slight deformation that may have occurred during the cutting process. The cut metal strip then enters the second pressure table device 11, which adjusts the position and tension of the cut metal strip to ensure the stability of subsequent length counting and collection. Next, the cut metal strip enters the length counting device 12, which measures the length of the cut metal strip and stabilizes the conveying tension. Finally, the cut metal strip is conveyed to the collector 13, which winds and collects the cut metal strip. This is the working principle of this transformer coil foil winding conductor full-circle edge processing device.
Claims
1. A device for processing the full-circle edge of a transformer coil foil winding conductor, comprising a corner rounding device (8) and a worktable, characterized in that: The corner rounding device (8) is fixedly connected to the top of the workbench. A metal chip collection device (15) is fixedly connected to the bottom of the corner rounding device (8). A tool height adjustment device (14) is provided below the corner rounding device (8). The bottom of the tool height adjustment device (14) is fixedly connected to the inside of the workbench.
2. The transformer coil foil winding conductor full-circle edge processing device according to claim 1, characterized in that: The left side of the rounding device (8) is provided with a cutting width adjustment device (7), the bottom of the cutting width adjustment device (7) is fixedly connected to the top of the processing table, and the left side of the cutting width adjustment device (7) is provided with a first pair of rollers device (6), the bottom of the first pair of rollers device (6) is fixedly connected to the top of the processing table.
3. The transformer coil foil winding conductor full-circle edge processing device according to claim 2, characterized in that: A seven-roller device (5) is provided on the left side of the first roller device (6). The bottom of the seven-roller device (5) is fixedly connected to the top of the processing table. A first pressure table device (4) is provided on the left side of the seven-roller device (5). The bottom of the first pressure table device (4) is fixedly connected to the top of the processing table.
4. The transformer coil foil winding conductor full-circle edge processing device according to claim 3, characterized in that: A blocking device (3) is provided on the left side of the first pressing table device (4). The bottom of the blocking device (3) is fixedly connected to the top of the processing table. A feeding roller device (2) is provided on the left side of the blocking device (3). The bottom of the feeding roller device (2) is fixedly connected to the top of the processing table. A feeding rack (1) is provided on the left side of the feeding roller device (2).
5. The transformer coil foil winding conductor full-circle edge processing device according to claim 1, characterized in that: A pressing device (9) is provided on the right side of the rounding device (8). The top of the pressing device (9) is fixedly connected to the top of the processing table. A second pair of rollers (10) is provided on the right side of the pressing device (9). The top of the second pair of rollers (10) is fixedly connected to the top of the processing table.
6. The transformer coil foil winding conductor full-circle edge processing device according to claim 5, characterized in that: A second pressing table device (11) is provided on the right side of the second roller device (10). The top of the second pressing table device (11) is fixedly connected to the top of the processing table. A length counting device (12) is provided on the right side of the second pressing table device (11). The top of the length counting device (12) is fixedly connected to the top of the processing table. A receiving machine (13) is provided on the right side of the length counting device (12).