A current transformer magnetic core spraying device

Abstract

A current transformer core coating device, relating to the field of current transformer core processing technology, includes a frame, a rotating mechanism, a tilting mechanism, a drying mechanism, and a coating mechanism. The frame has a coating area and a drying area. The upper wall of the frame has a through groove and a wire groove, with the wire groove parallel to each other on both sides of the through groove. The rotating mechanism is slidably mounted on the frame and moves between the drying area and the coating area. The tilting mechanism includes a fixed frame, a second motor, and a core carrier. The fixed frame is mounted on the rotating mechanism, and the second motor is mounted on the side wall of the fixed frame. The core carrier is rotatably mounted on the fixed frame via pivots at its two ends, and one set of pivots is connected to the output shaft of the second motor via a coupling. The drying mechanism is fixedly mounted above the drying area. The coating mechanism is mounted above the coating area via a transverse moving platform. This device can reduce the number of flips during the core coating process, improve production efficiency, and ensure coating quality.

Description

Technical Field

[0001] This invention relates to the field of current transformer core processing technology, specifically to a current transformer core spraying device. Background Technology

[0002] The magnetic core of a current transformer is a key electromagnetic induction component in a power system. Its surface needs to be coated with an insulating coating to ensure insulation performance and prevent oxidation of the magnetic core. At the same time, the coating must meet the requirements of uniformity, no drips, no blind spots, and strong interlayer bonding, which directly affects the accuracy and service life of the transformer.

[0003] Existing magnetic core coating equipment requires multiple coats to be applied alternately to both sides of the magnetic core. After each coat, the core must be flipped and dried to ensure coating uniformity and prevent drips, thus avoiding scratches, sticking, or drips from the uncured coating. However, multiple flips and drying processes consume a significant amount of production time, severely reducing production efficiency. Furthermore, frequent flips can easily lead to magnetic core positioning deviations, which can affect the uniformity of coating thickness. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a current transformer core spraying device, which at least partially solves the problems mentioned in the background art.

[0005] The technical solution adopted in this invention is as follows: This invention provides a current transformer core spraying device, comprising: A frame is provided with a spraying area and a drying area. The upper wall of the frame is provided with a through groove and a wire groove, with the wire grooves arranged parallel to each other on both sides of the through groove. A rotating mechanism is slidably mounted on the frame and configured to move between the drying zone and the spraying zone; The tilting mechanism includes a fixed frame, a second motor, and a magnetic core stage. The fixed frame is mounted on the rotating mechanism, the second motor is mounted on the side wall of the fixed frame, and the magnetic core stage is rotatably mounted on the fixed frame via rotating shafts at its two ends. One set of rotating shafts is connected to the output shaft of the second motor via a coupling. The drying mechanism is fixedly installed above the drying area; The spraying mechanism is positioned above the spraying area via a horizontally moving platform.

[0006] Furthermore, the rotating mechanism includes a movable seat, a first motor, and a rotating platform. The lower wall of the movable seat is provided with a slide rail that slides in cooperation with the groove. The first motor is fixed to the lower wall of the movable seat and located in the through groove. The upper end of its output shaft passes through the movable seat and is fixedly connected to the rotating platform. The fixed bracket is mounted on the rotating platform.

[0007] Furthermore, the magnetic platform includes a main frame, a placement plate, a winding mechanism, and a pull plate. The placement plate is fixed to the inner wall of the main frame. The main frame has grooves located on the upper and lower sides of the placement plate. The pull plate is slidably disposed in the grooves. The winding mechanism is built into both ends of the main frame and has a rolled cloth inside. The outer end of the rolled cloth is fixed to the pull plate, and the two side edges of the rolled cloth extend into the grooves.

[0008] In a further embodiment, the placement plate has several placement holes for placing and limiting the current transformer core.

[0009] In a further embodiment, the pull plate is provided with a positioning hole, and a positioning rod that cooperates with the positioning hole is provided at the end of the slide groove away from the pull plate.

[0010] In a further embodiment, the roll is an industrial polyester fiber fabric with a polyurethane or silicone coating on its surface to enhance abrasion resistance and reduce fiber shedding.

[0011] In a further embodiment, the drying mechanism is an infrared radiation lamp, which is a medium-short wave infrared lamp with adjustable power and temperature, and is externally connected to a temperature control system to achieve efficient, directional, and uniform heating and curing of the sprayed surface.

[0012] In a further embodiment, the height of the fixing frame is greater than half the width of the magnetic core stage, thereby enabling the magnetic core stage to be flipped smoothly.

[0013] The beneficial effects achieved by the present invention using the above structure are as follows: Through the cooperation of the rotating mechanism, the tilting mechanism and the magnetic core carrier, the automatic transfer of the magnetic core between the spraying station and the drying station is realized, as well as the automatic 180-degree rotation of the magnetic core itself, which greatly improves production efficiency and consistency. The retractable roll of cloth can completely seal the non-sprayed surface and the inside of the platform during spraying, effectively preventing paint mist contamination, ensuring the cleanliness of the other side of the magnetic core and the quality of subsequent spraying, while simplifying equipment cleaning. By combining the tilting mechanism with the lateral movement of the spraying mechanism, multi-angle and all-round spraying coverage of the magnetic core surface is achieved, avoiding the generation of spraying dead corners. The cooperation of the rotating mechanism and the tilting mechanism can realize multi-angle rotation in the drying zone, so that the magnetic core is heated evenly and the coating is prevented from having defects due to local excessively high or low temperatures. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the current transformer core spraying device proposed in an embodiment of the present invention; Figure 2This is a front view of the current transformer core spraying device proposed in an embodiment of the present invention; Figure 3 This is a three-dimensional schematic diagram of the rotating mechanism and the tilting mechanism proposed in the embodiments of the present invention; Figure 4 This is a side view of the rotating mechanism and tilting mechanism proposed in an embodiment of the present invention; Figure 5 This is a three-dimensional schematic diagram of the rotating mechanism proposed in an embodiment of the present invention; Figure 6 This is a schematic diagram of the internal structure of the magnetic core stage proposed in an embodiment of the present invention.

[0015] in, 1. Frame; 11. Spraying area; 12. Drying area; 13. Through groove; 14. Cable tray. 2. Rotating mechanism; 21. Movable seat; 22. First motor; 23. Rotating platform; 211. Slide rail. 3. Tilting mechanism; 31. Fixing frame; 32. Second motor; 33. Magnetic core platform; 331. Main frame; 3311. Slide groove; 332. Placement plate; 3321. Placement hole; 333. Rolling mechanism; 3331. Cloth rolling; 334. Pulling plate; 3341. Positioning hole; 335. Positioning rod. 4. Drying mechanism 5. Spraying mechanism.

[0016] The accompanying drawings are provided to further understand the embodiments and form part of the specification. They are used together with the embodiments for explanation and do not constitute a limitation on the embodiments. Detailed Implementation

[0017] The technical solutions in 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, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection.

[0018] In the description of the embodiments, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments and 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 embodiments.

[0019] Existing magnetic core coating equipment requires multiple coats to be applied alternately to both sides of the magnetic core. After each coat, the core must be flipped and dried to ensure coating uniformity and prevent drips, thus avoiding scratches, sticking, or drips from the uncured coating. However, multiple flips and drying processes consume a significant amount of production time, severely reducing production efficiency. Furthermore, frequent flips can easily lead to magnetic core positioning deviations, which can affect the uniformity of coating thickness.

[0020] Recognizing the above problems, this application proposes and discloses a current transformer core spraying device, which reduces the number of flipping operations during the core spraying process, improves production efficiency, and ensures spraying quality.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment provides a current transformer core spraying device, comprising: The frame 1 is provided with a spraying area 11 and a drying area 12. The upper wall of the frame 1 is provided with a through groove 13 and a wire groove 14, with the wire groove 14 arranged parallel to each other on both sides of the through groove 13. The rotating mechanism 2 is slidably mounted on the frame 1 and is configured to move between the drying zone 12 and the spraying zone 11; The tilting mechanism 3 includes a fixed frame 31, a second motor 32, and a magnetic core stage 33. The fixed frame 31 is mounted on the rotating mechanism 2, the second motor 32 is mounted on the side wall of the fixed frame 31, and the magnetic core stage 33 is rotatably mounted on the fixed frame 31 through the central rotating shafts at both ends, and one set of rotating shafts is connected to the output shaft of the second motor 32 through a coupling. The drying mechanism 4 is fixedly installed above the drying zone 12; The spraying mechanism 5 is positioned above the spraying area 11 via a transverse moving platform.

[0022] In this embodiment, the rotating mechanism 2 slides back and forth along the groove 14 of the frame 1 via the slide rail 211 of the movable seat 21, which can drive the magnetic core stage 33 to move back and forth between the spraying area 11 and the drying area 12. When the magnetic core stage 33 moves to the spraying area 11, the spraying mechanism 5 sprays the front of the magnetic core. During the spraying process, the second motor 32 drives the magnetic core stage 33 to tilt bidirectionally around the two-end rotating shafts, dynamically adjusting the "front, middle, and rear" angles of the magnetic core surface relative to the spray gun. After the front spraying is completed, the rotating mechanism 2 slides to the drying area 12, and the drying mechanism 4 pre-dries the coating on the front of the magnetic core at a low temperature, so that the coating dries quickly. After the pre-drying is completed, the second motor 32 drives the magnetic core stage 33 to rotate 180°, causing the magnetic core stage 33 to flip over as a whole, so that the back of the magnetic core faces upward. The spraying mechanism 5 sprays through the horizontal moving platform to complete the "left, middle, and right" coverage of the magnetic core in the width direction.

[0023] In this embodiment, the horizontal orientation of the magnetic core stage 33 is adjusted by the rotating mechanism 2, which allows the magnetic core to rotate slowly during drying to achieve uniform heating and provides flexibility in orientation adjustment before spraying or during maintenance.

[0024] like Figure 3 , Figure 4 and Figure 5 As shown, the rotating mechanism 2 includes a movable seat 21, a first motor 22 and a rotating platform 23. The lower wall of the movable seat 21 is provided with a slide rail 211 that slides in cooperation with the wire groove 14. The first motor 22 is fixed to the lower wall of the movable seat 21 and located in the through groove 13. The upper end of its output shaft passes through the movable seat 21 and is fixedly connected to the rotating platform 23. The fixed frame 31 is provided on the rotating platform 23.

[0025] like Figure 6 As shown, the magnetic platform includes a main frame 331, a placement plate 332, a winding mechanism 333, and a pull plate 334. The placement plate 332 is fixed to the inner wall of the main frame 331. The main frame 331 has grooves 3311 located on the upper and lower sides of the placement plate 332. The pull plate 334 is slidably disposed in the grooves 3311. The winding mechanism 333 is built into both ends of the main frame 331. A rolled cloth 3331 is disposed inside the mechanism. The outer end of the rolled cloth 3331 is fixed to the pull plate 334, and the two side edges of the rolled cloth 3331 extend into the grooves 3311.

[0026] In this embodiment, the placement plate 332 provides a stable bearing reference for the magnetic core. The upper and lower sliding grooves 3311, together with the pull plate 334 and the roll cloth 3331, can achieve flexible clamping from both the top and bottom of the magnetic core, preventing the magnetic core from shifting during spraying and flipping. At the same time, the roll cloth 3331 makes flexible contact to prevent scratching the surface of the magnetic core.

[0027] In this embodiment, the two sides of the roll 3331 extend into the groove 3311, which can seal the gap between the pull plate 334 and the groove 3311 and prevent the paint from entering the groove 3311 during the spraying process.

[0028] like Figure 1 and Figure 3 As shown, the placement plate 332 has several placement holes 3321 for placing and limiting the magnetic core of the current transformer.

[0029] like Figure 3 and Figure 6 As shown, the pull plate 334 is provided with a positioning hole 3341, and a positioning rod 335 that cooperates with the positioning hole 3341 is provided at the end of the slide groove 3311 away from the pull plate 334.

[0030] In this embodiment, when the pull plate 334 pulls the roll of cloth 3331 to the end of the slide groove 3311, the roll of cloth 3331 can be fixed by the cooperation of the positioning rod 335 and the positioning hole 3341.

[0031] In this embodiment, the roll 3331 is an industrial polyester fiber fabric with a polyurethane or silicone coating on its surface to enhance abrasion resistance and reduce fiber shedding.

[0032] In this embodiment, the drying mechanism 4 is an infrared radiation lamp, which is a medium-short wave infrared lamp with adjustable power and temperature, and is connected to an external temperature control system to achieve efficient, directional, and uniform heating and curing of the sprayed surface.

[0033] In this embodiment, the height of the fixing frame 31 is greater than half the width of the magnetic core stage 33, so that the magnetic core stage 33 can be flipped smoothly.

[0034] During loading, the magnetic core carrier 33 is flipped so that the front of the placement plate 332 is facing upwards. The lower pull plate 334 is pulled to pull the lower roll of cloth 3331 out of the roll mechanism 333 until the pull plate 334 reaches the end of the slide groove 3311. The positioning rod 335 is inserted into the positioning hole 3341 to fix it, so that the roll of cloth 3331 completely covers the lower side of the placement plate 332. The magnetic core to be sprayed is placed into the placement hole 3321 of the placement plate 332, and the weight of the magnetic core is supported by the roll of cloth 3331 below.

[0035] Then, the rotating mechanism 2 is activated, sliding and positioning it in the spraying area 11. The spraying mechanism 5 is then activated to spray the exposed magnetic core surface. After completion, the rotating mechanism 2 slides to the drying area 12, and the drying mechanism 4 is activated to cure the paint. It then moves back to the spraying area 11, and the tilting mechanism 3 rotates to adjust the tilt angle of the magnetic core platform 33, repeating the spraying and drying process several times from different angles.

[0036] After the first side is treated, the second motor 32 of the tilting mechanism 3 is activated to drive the magnetic core platform 33 to rotate. At this time, the magnetic core and the platform are pressed down by gravity onto the lower layer of fabric 3331 that has been pulled out. Then, the upper pull plate 334 is pulled out and fixed so that the fabric 3331 covers the side of the magnetic core that has been coated. Subsequently, the lower layer of fabric 3331 is retracted into the roll mechanism 333, exposing the uncoated side of the magnetic core. The coating mechanism 5 then coats the other side of the magnetic core through the horizontal moving platform, so that the tilting directions of the front and back coatings are orthogonal to each other, achieving cross-cancellation of paint drips and ensuring a uniform coating without drips.

[0037] After both sides have been processed, the magnetic core stage 33 can be moved to the drying area 12 for final drying. After final drying, the magnetic core is removed, completing one work cycle.

[0038] It should be noted that, in this document, relational terms such as “first” and “second” are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0039] Although embodiments have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the material and spirit.

[0040] The embodiments have been described above, and such description is not restrictive. The figures shown are only one embodiment, and the actual structure is not limited to this. In short, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit, they should all fall within the scope of protection.

Claims

1. A current transformer core spraying device, characterized in that, include: A frame (1) is provided with a spraying area (11) and a drying area (12). The frame (1) is provided with a through groove (13) and a wire groove (14). The wire groove (14) is arranged in parallel on both sides of the through groove (13). A rotating mechanism (2) is slidably mounted on the frame (1) and configured to move between the drying zone (12) and the spraying zone (11); The tilting mechanism (3) includes a fixed frame (31), a second motor (32) and a magnetic core stage (33). The fixed frame (31) is mounted on the rotating mechanism (2), the second motor (32) is mounted on the side wall of the fixed frame (31), and the magnetic core stage (33) is rotatably mounted on the fixed frame (31) through its two central shafts. One set of shafts is connected to the output shaft of the second motor (32) through a coupling. The drying mechanism (4) is fixedly installed above the drying zone (12); The spraying mechanism (5) is positioned above the spraying area (11) via a transverse moving platform.

2. The current transformer core spraying device according to claim 1, characterized in that, The rotating mechanism (2) includes a movable seat (21), a first motor (22) and a rotating platform (23). The lower wall of the movable seat (21) is provided with a slide rail (211) that slides in cooperation with the groove (14). The first motor (22) is fixed to the lower wall of the movable seat (21) and located in the through groove (13). The upper end of its output shaft passes through the movable seat (21) and is fixedly connected to the rotating platform (23). The fixed frame (31) is provided on the rotating platform (23).

3. The current transformer core spraying device according to claim 2, characterized in that, The magnetic platform includes a main frame (331), a placement plate (332), a scroll mechanism (333), and a pull plate (334). The placement plate (332) is fixed to the inner wall of the main frame (331). The main frame (331) is provided with grooves (3311) located on the upper and lower sides of the placement plate (332). The pull plate (334) is slidably disposed in the grooves (3311). The scroll mechanism (333) is built into both ends of the main frame (331). It is provided with a rolled cloth (3331) inside. The outer end of the rolled cloth (3331) is fixed to the pull plate (334), and the two sides of the rolled cloth (3331) extend into the grooves (3311).

4. The current transformer core spraying device according to claim 3, characterized in that, The placement plate (332) has several placement holes (3321) for placing and limiting the magnetic core of the current transformer.

5. The current transformer core spraying device according to claim 3, characterized in that, The pull plate (334) is provided with a positioning hole (3341), and a positioning rod (335) that cooperates with the positioning hole (3341) is provided at the end of the slide groove (3311) away from the pull plate (334).

6. The current transformer core spraying device according to claim 3, characterized in that, The roll of fabric (3331) is an industrial polyester fiber fabric with a polyurethane or silicone coating on its surface.

7. The current transformer core spraying device according to claim 1, characterized in that, The drying mechanism (4) is an infrared radiation lamp, which is a medium-short wave infrared lamp with adjustable power and temperature, and is connected to an external temperature control system to achieve efficient, directional and uniform heating and curing of the sprayed surface.

8. The current transformer core spraying device according to claim 1, characterized in that, The height of the fixing frame (31) is greater than half the width of the magnetic core stage (33), so that the magnetic core stage (33) can be flipped smoothly.

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