Baking and paint dipping equipment for transformer

Abstract

The invention provides a transformer baking and paint dipping device which comprises a first baking mechanism, a second baking mechanism, a grabbing mechanism located between the first baking mechanism and the second baking mechanism, a paint spraying mechanism located on one side of the grabbing mechanism and a conveying device located on one side of the first baking mechanism. The second baking mechanism comprises a second baking device and an airing table. According to the baking and paint dipping equipment for the transformer, the transformer is placed in the first baking mechanism, the first baking mechanism dries the transformer, the grabbing mechanism places the dried transformer in the paint spraying mechanism for paint spraying, and the grabbing mechanism places the transformer subjected to paint spraying on the airing table; and finally, the transformer on the airing table is placed in the second baking device, drying, paint dipping and drying after paint dipping of the transformer form a set of complete flow treatment, the machining efficiency is improved, and the production capacity is improved.

Description

Technical Field

[0001] This invention relates to the field of transformer technology, and in particular to a baking and impregnation apparatus for transformers. Background Technology

[0002] As a critical electrical device in the power system, the performance stability and service life of transformers largely depend on the insulation treatment process of their windings. Impregnation is an important step in improving the insulation performance of transformer windings, enhancing their mechanical strength, and improving their moisture and corrosion resistance. Currently, transformer insulation treatment requires multiple machines in separate workshops. This process necessitates operators moving from one machine to the next after completing the previous one, increasing labor costs and reducing efficiency.

[0003] Therefore, there is a need to provide a transformer baking and impregnation equipment to solve the above-mentioned technical problems. Summary of the Invention

[0004] This invention provides a baking and impregnation equipment for transformers, which solves the problem that in the prior art, transformer insulation treatment requires multiple machines to process separately, and operators need to move the equipment from one process to the next, which not only increases labor costs but also results in low processing efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: a baking and impregnation device for a transformer, comprising a first baking mechanism, a second baking mechanism, a gripping mechanism located between the first baking mechanism and the second baking mechanism, a coating mechanism located on one side of the gripping mechanism, and a conveying device located on one side of the first baking mechanism; The first baking mechanism includes a first baking device and a first feeding device and a first unloading device located at both ends of the first baking device. The first unloading device includes a first mounting frame connected to the first baking device, a lifting component mounted on the first mounting frame and close to the gripping mechanism, and a first moving component mounted on the first mounting frame for placing the transformer of the first baking device on the lifting component. The lifting component is used to push out the fixture on the transformer. The gripping mechanism includes a mounting base, a robotic arm mounted on the mounting base, and a gripping device mounted on the robotic arm. The gripping device includes an extension column mounted on the robotic arm, a first motor located above the extension column for driving the extension column to rotate, a mounting plate mounted on the extension column, and a first gripping assembly connected to both sides of the mounting plate for gripping a fixture placed on the conveying device and a second gripping assembly for gripping a transformer placed on the painting mechanism and the second baking mechanism, respectively. The coating mechanism includes a fixed frame, a coating tank installed in the fixed frame for placing transformer coating, and a coating device installed in the fixed frame and movable along the length of the coating tank for coating transformer coils. The second baking mechanism includes a second baking device and a drying table located at one end of the second baking device. The gripping mechanism grips the transformer in the paint impregnation tank, places it on the drying table for drying, and then moves it into the second baking device.

[0006] In this invention, the first feeding device includes a second mounting frame installed at the end of the first baking device away from the gripping mechanism, a shelf mounted on the second mounting frame, and a second moving component mounted on the second mounting frame. The second moving component is used to grip the transformer on the shelf and place it on the first baking device.

[0007] In this invention, the lifting assembly includes a base plate mounted on the first mounting frame, a top plate mounted on the first mounting frame above the base plate and opposite to the base plate, a plurality of first cylinders mounted on the base plate and extending along the length of the base plate, a first fixing plate connected to the first cylinders, a plurality of fixing columns located at the corners of the first fixing plate and with one end passing through the top plate, and a platform mounted on the top plate for placing the transformer. The first cylinders drive the fixing columns to lift through the first fixing plate, thereby pushing out the fixture inside the transformer.

[0008] In this invention, the lifting assembly further includes a second fixing plate installed between the top plate and the bottom plate, a first bidirectional cylinder installed on the second fixing plate, and connecting plates respectively installed at both ends of the first bidirectional cylinder. The connecting plates are provided with a plurality of L-shaped pressure plates, and the first bidirectional cylinder drives the pressure plates to move away from or towards the platform.

[0009] In this invention, the first gripping component includes a first strip plate located below one side of the mounting plate, a plurality of rodless cylinders mounted below the first strip plate, first grippers connected to both sides of one end of the rodless cylinders for gripping the transformer, and a second cylinder connected to the mounting plate and connected to the first strip plate for driving the first strip plate to move. The second gripping assembly includes a second strip plate located below the other side of the mounting plate, a plurality of second bidirectional cylinders mounted below the second strip plate, second grippers connected to both ends of the second bidirectional cylinders for gripping the fixture, and a third cylinder connected to the mounting plate and connected to the second strip plate for driving the second strip plate to move.

[0010] In this invention, the immersion tank is further provided with a sealing cover that can be flipped on the immersion tank and a fourth cylinder with its two ends respectively connected to the immersion tank and the sealing cover. The fourth cylinder is used to drive the sealing cover to open or close the immersion tank. Below the paint impregnation tank, there is also an air extraction component for extracting air from the sealed paint impregnation tank.

[0011] In this invention, the coating device includes a third mounting frame that can move along the length of the fixed frame, a plurality of coating components mounted on the third mounting frame, and a paint container mounted on the third mounting frame and rotatable on the third mounting frame. The paint container is located below the coating components. When the coating components are not coated, the paint container is located below the coating components. When the coating components are coated, the paint container rotates to move away from below the coating components.

[0012] In this invention, the baking and impregnation equipment further includes a table located between the coating mechanism and the gripping mechanism for placing a cover at the top terminal of the sealing transformer. The gripping mechanism grips the cover and places it on the transformer to seal the terminals on the transformer.

[0013] In this invention, the drying rack is inclined and has multiple racks for placing transformers.

[0014] In this invention, the drying rack is provided with multiple through holes for paint dripping, and all the through holes are located below the placement rack; Below the drying rack is a detachable container for holding paint, which is attached to the drying rack. The paint drips into the container through the through hole.

[0015] Compared with the prior art, the beneficial effects of this invention are as follows: The transformer baking and impregnation equipment of this invention involves placing the transformer in a first baking mechanism to dry the transformer, then placing the dried transformer in a coating mechanism for coating, a gripping mechanism to place the coated transformer on a drying table, and finally placing the transformer on the drying table into a second baking device. The transformer drying, impregnation, and post-impregnation drying form a complete process, thereby accelerating processing efficiency and increasing production capacity. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments are briefly introduced below. The drawings described below are only the corresponding drawings of some embodiments of the present invention.

[0017] Figure 1 This is a perspective view of the baking and impregnation equipment for the transformer of the present invention.

[0018] Figure 2 This is a perspective view of the first baking mechanism of the transformer baking and impregnation apparatus of the present invention.

[0019] Figure 3 for Figure 2 A magnified view of part A in the middle.

[0020] Figure 4 This is a perspective view of the first feeding device of the transformer baking and impregnation equipment of the present invention.

[0021] Figure 5 for Figure 4 A magnified view of part B in the middle section.

[0022] Figure 6 This is a perspective view of the gripping mechanism of the transformer baking and impregnation equipment of the present invention.

[0023] Figure 7 for Figure 6 A magnified view of part C in the middle.

[0024] Figure 8 This is a perspective view of the coating mechanism of the transformer baking and impregnation equipment of the present invention.

[0025] Figure 9 for Figure 8 Enlarged view of the layout of section D.

[0026] Figure 10 This is a perspective view of the drying rack of the transformer baking and impregnation equipment of the present invention.

[0027] 11. First baking mechanism; 13. Gripping mechanism; 14. Coating mechanism; 15. Table; 16. Conveying device; 17. Transformer; 171. Fixture; 121. Second baking device; 122. Drying rack; 111. First baking device; 112. First feeding device; 113. First unloading device; 1121. Second mounting frame; 1122. Second moving component; 1123. Display stand; 1131. First mounting frame; 1132. First moving component; 1133. Lifting component; 1130. Pressure plate; 1134. Base plate; 1135. First cylinder; 1136. First fixing plate; 1137. Fixing column; 1138. Second fixing plate; 1139. Connection Plate; 11331, Top plate; 131, Mounting base; 132, Robotic arm; 134, Gripping device; 1340, Second cylinder; 1341, Extension column; 1342, Mounting plate; 1343, Second strip plate; 1344, Second bidirectional cylinder; 1345, Second gripper; 1346, Third cylinder; 1347, First strip plate; 1348, Rodless cylinder; 1349, First gripper; 141, Fixing frame; 142, Dipping tank; 143, Sealing cover; 144, Coating device; 145, Fourth cylinder; 1441, Third mounting frame; 1442, Coating component; 1443, Coating box; 1221, Placement rack; 1222, Through hole; 1223, Container box. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0029] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure pertains.

[0030] The terms "first," "second," and similar words used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] 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.

[0032] The following is a preferred embodiment of a transformer baking and impregnation equipment provided by the present invention, which can solve the above-mentioned technical problems.

[0033] Please refer to Figure 1 and Figure 2 ,in Figure 1 This is a perspective view of the transformer baking and impregnation equipment of the present invention. Figure 2 This is a perspective view of the first baking mechanism of the transformer baking and impregnation apparatus of the present invention.

[0034] In the diagram, units with similar structures are represented by the same labels.

[0035] The terms "first" and "second" used in the terminology of this invention are for descriptive purposes only and should not be construed as indicating or implying relative importance, nor as limiting the order of events.

[0036] The present invention provides a transformer baking and impregnation device, comprising a first baking mechanism 11, a second baking mechanism, a gripping mechanism 13 located between the first baking mechanism 11 and the second baking mechanism, a coating mechanism 14 located on one side of the gripping mechanism 13, and a conveying device 16 located on one side of the first baking mechanism 11; the first baking mechanism 11 includes a first baking device 111 and a first feeding device 112 and a first unloading device 113 located at both ends of the first baking device 111; the first unloading device 113 includes a first mounting frame 1131 connected to the first baking device 111, a lifting assembly 1133 mounted on the first mounting frame 1131 and close to the gripping mechanism 13, and a first moving assembly 1132 mounted on the first mounting frame 1131 for placing the transformer 17 of the first baking device 111 onto the lifting assembly 1133; the lifting assembly 1133 is used to push out the fixture 171 on the transformer 17; the gripping mechanism 13 includes a mounting base 131, a robotic arm 132 mounted on the mounting base 131, and a conveying device 16 mounted on the machine. The gripping device 134 on the robotic arm 132 includes an extension column 1341 mounted on the robotic arm 132, a first motor located above the extension column 1341 for driving the extension column 1341 to rotate, a mounting plate 1342 mounted on the extension column 1341, and a first gripping assembly connected to both sides of the mounting plate 1342 for gripping a fixture 171 placed on a conveying device 16, and a second gripping assembly with a gripping transformer 17 placed on a painting mechanism 14 and a second baking mechanism, respectively; the painting mechanism 1 4. Includes a fixed frame 141, a varnish-immersing tank 142 installed in the fixed frame 141 for placing the transformer 17 for varnishing, and a varnish-coating device 144 installed in the fixed frame 141 and movable along the length of the varnish-immersing tank 142 for varnishing the coil of the transformer 17; a second baking mechanism, including a second baking device 121 and a drying table 122 located at one end of the second baking device 121, wherein a gripping mechanism 13 grips the transformer 17 in the varnish-immersing tank 142, places it on the drying table 122 for drying, and then moves it to the second baking device 121.

[0037] The first baking mechanism 11 is used to dry the moisture on the surface of the transformer 17. The gripping mechanism 13 is used to move the dried transformer 17 to the coating mechanism 14. After the coating mechanism 14 completes the insulation treatment by coating the transformer 17, the gripping mechanism 13 grips the insulation-treated transformer 17 again and places it in the second drying mechanism to dry the paint adhering to the transformer 17, thereby accelerating the drying efficiency. When the transformer 17 is subjected to insulation processing, firstly, the first feeding device 112 grips the transformer 17 at a specific position and places it in the first baking mechanism. On the first baking device 111, while drying the transformer 17, the first baking device 111 moves the transformer 17 towards the first unloading device 113. When the first baking device 111 moves the transformer 17 onto the first unloading device 113, the lifting assembly 1133 pushes out the fixture 171 inside the transformer 17. The robotic arm 132 drives the gripping device 134 to move towards the lifting assembly 1133. The robotic arm 132 drives the gripping device 134 to move above the lifting assembly 1133, and the first gripping assembly grips the fixture 171. The first motor drives the extension column. 1341 rotates to position the second gripping assembly above the transformer 17. The second gripping assembly grips the transformer 17. After the second gripping assembly grips the transformer 17, the robotic arm 132 drives the gripping device 134 to move towards the conveying device 16, causing the first gripping assembly to place the fixture 171 on the conveying assembly. The conveying assembly then carries the fixture 171 away. The robotic arm 132 again drives the gripping device 134 to move towards the varnish impregnation tank 142, and the second gripping assembly places the transformer 17 into the varnish impregnation tank 142. The varnishing device 144 then insulates the coils of the transformer 17. After the insulation treatment is completed, the robotic arm 132 moves the gripping device 134 again, causing the second gripping component of the gripping device 134 to grip the insulated transformer 17 and place it on the drying table 122, causing excess paint on the transformer 17 to fall off. After drying, the second gripping component grips the transformer 17 again and places it in the second baking device 121 for drying. Through the above operations, the drying, varnishing, and post-varnishing drying of the transformer 17 form a complete process, reducing manual operation, thereby speeding up processing efficiency and increasing production capacity.

[0038] Please refer to Figure 2 and Figure 3The first feeding device 112 includes a second mounting frame 1121 installed at the end of the first baking device 111 away from the gripping mechanism 13, a platform 1123 installed on the second mounting frame 1121, and a second moving component 1122 installed on the second mounting frame 1121. The second moving component 1122 is used to grip the transformer 17 on the platform 1123 and place it on the first baking device 111. The second mounting frame 1121 is used to install the platform 1123 and the second moving component 1122. The platform 1123 is used for manually placing the transformer 17 or for a robot to place the transformer 17 on the platform 1123 to position the transformer 17. The second moving component 1122 grips the transformer 17 on the platform 1123 and places it on the first baking device 111. While baking the transformer 17, the first baking device 111 moves the transformer 17 toward the direction of the first unloading component.

[0039] Please refer to Figure 4 and Figure 5 The lifting assembly 1133 includes a base plate 1134 mounted on a first mounting bracket 1131, a top plate 11331 mounted on the first mounting bracket 1131 above the base plate 1134 and opposite to the base plate 1134, a plurality of first cylinders 1135 mounted on the base plate 1134 and extending along the length of the base plate 1134, a first fixing plate 1136 connected to the first cylinders 1135, a plurality of fixing posts 1137 located at the corners of the first fixing plate 1136 and with one end passing through the top plate 11331, and a platform mounted on the top plate 11331 for placing the transformer 17. The first cylinders 1135 are connected to the first fixing plate 1134. 36 drives the fixed column 1137 to rise, so as to push out the jig 171 inside the transformer 17. The base plate 1134 is used to install the first cylinder 1135. The first fixed plate 1136 is installed on the first cylinder 1135. The fixed column 1137 is installed on the first fixed plate 1136. The platform is installed on the top plate 11331. One end of the fixed column 1137 passes through the top plate 11331. When the first cylinder 1135 drives the first fixed plate 1136 to move, the first fixed plate 1136 drives the fixed column 1137 to move. The fixed column 1137 moves relative to the top plate 11331, so as to push out the jig 171 placed on the platform inside the transformer 17.

[0040] In this embodiment, the transformer 17 is positioned by the fixture 171 during the production process, and it does not need to be disassembled manually before painting. The fixture 171 of the transformer 17 is disassembled by the lifting component 1133 to reduce manual operation.

[0041] The lifting assembly 1133 also includes a second fixing plate 1138 installed between the top plate 11331 and the bottom plate 1134, a first bidirectional cylinder installed on the second fixing plate 1138, and connecting plates 1139 respectively installed at both ends of the first bidirectional cylinder. The connecting plates 1139 are provided with multiple L-shaped pressure plates 1130. The first bidirectional cylinder drives the pressure plates 1130 to move away from or towards the platform. The second fixing plate 1138 is used to install the first bidirectional cylinder, and the connecting plates 1139 are installed at both ends of the first bidirectional cylinder. Multiple pressure plates 1130 can be installed on the connecting plate 1139 of the cylinder to reduce the installation of the first bidirectional cylinder. Before the fixing column 1137 pushes out of the fixture 171, the first bidirectional cylinder drives the connecting plates 1139 on both sides to move towards the transformer 17 respectively. When the connecting plate 1139 moves, it drives the pressure plate 1130 to move above the transformer 17, so that the pressure plate 1130 limits the transformer 17. When the fixing column 1137 pushes out of the fixture 171, the pressure plate 1130 limits the transformer 17 to prevent the transformer 17 from separating from the platform.

[0042] Please refer to Figure 6 and Figure 7 The first gripping assembly includes a first strip plate 1347 located below one side of the mounting plate 1342, a plurality of rodless cylinders 1348 mounted below the first strip plate 1347, first grippers 1349 connected to both sides of one end of the rodless cylinders 1348 for gripping the transformer 17, and a second cylinder 1340 connected to the mounting plate 1342 and connected to the first strip plate 1347 for driving the first strip plate 1347 to move; the second gripping assembly includes a second strip plate 1343 located below the other side of the mounting plate 1342, a plurality of second bidirectional cylinders 1344 mounted below the second strip plate 1343, second grippers 1345 connected to both ends of the second bidirectional cylinders 1344 for gripping the fixture 171, and a second gripper 1345 connected to the mounting plate 1342. A third cylinder 1346 is mounted on and connected to the second strip plate 1343 for driving the second strip plate 1343 to move. The second cylinder 1340 is fixed on the mounting plate 1342 and connected to the first strip plate 1347. The first strip plate 1347 is used to fix the rodless cylinder 1348. The first grippers 1349 are provided on both sides of one end of the rodless cylinder 1348. The second cylinder 1340 is used to drive the first strip plate 1347 to descend. The rodless cylinder 1348 is used to drive the first clamping gripper or releasing fixture 171. The third cylinder 1346 is mounted on the mounting plate 1342 and connected to the second strip plate 1343. The second strip plate 1343 is used to fix the second bidirectional cylinder 1344. The second grippers 1345 are fixed at both ends of the second bidirectional cylinder 1344.

[0043] When the robotic arm 132 drives the extension column 1341 to grasp the transformer 17, the first motor drives the first strip plate 1347 to be positioned opposite the lifting assembly 1133, and the second cylinder 1340 drives the first strip plate 1347 to move downward. When the first gripper 1349 is located on both sides of the fixture 171, the rodless cylinder 1348 drives the first gripper 1349 to grip the fixture 171, and the second cylinder 1340 drives the first strip plate 1347 to rise, causing the first gripper 1349 to move the fixture 171 away from the lifting assembly 1133. The first motor then drives the second strip plate 1343 to be positioned opposite the lifting assembly 1133, and the third cylinder 1346 drives the second strip plate 1343 to move downward, causing the second gripper 1345 to be located on both sides of the transformer 17. Cylinder 1344 drives the second gripper 1345 to grip the transformer 17, and the third cylinder 1346 drives the second strip plate 1343 to move upward, so that the second gripping component moves away from the lifting component 1133. The robotic arm 132 drives the mounting plate 1342 to move towards the conveying device 16, so that the first gripping component places the fixture 171 on the conveying device 16. The robotic arm 132 drives the mounting plate 1342 to move towards the painting mechanism 14, so that the second gripping component places the transformer 17 in the immersion tank 142. After the immersion tank 142 is painted, the second gripping component places the painted transformer 17 on the drying table 122. Finally, the second gripping component grabs the dried transformer 17 again and places it on the second baking device 121 to complete one process operation.

[0044] Please refer to Figure 8 The immersion tank 142 is also equipped with a sealing cover 143 that can be flipped on the immersion tank 142 and a fourth cylinder 145 connected at both ends to the immersion tank 142 and the sealing cover 143 respectively. The fourth cylinder 145 is used to drive the sealing cover 143 to open or close the immersion tank 142. Below the immersion tank 142, there is also an air extraction component for extracting air from the sealed immersion tank 142. The sealing cover 143 is used to close the immersion tank 142, the fourth cylinder 145 is used to drive the sealing cover 143 to open or close the immersion tank 142, and the extraction component is used to extract air from the sealed immersion tank 142 to eliminate air bubbles formed on the surface of the transformer 17 after the varnish is applied.

[0045] Please refer to Figure 8 and Figure 9The painting apparatus 144 includes a third mounting frame 1441 movable along the length of the fixed frame 141, a plurality of painting components 1442 mounted on the third mounting frame 1441, and a paint container 1443 mounted on the third mounting frame 1441 and rotatable on the third mounting frame 1441. The paint container 1443 is located below the painting components 1442. When the painting components 1442 are not painted, the paint container 1443 is located below the painting components 1442. When the painting components 1442 are painted, the paint container 1443 is positioned below them. 3. Rotate away from the underside of the paint coating component 1442. The third mounting bracket 1441 is used to install the paint coating component 1442 and the paint box 1443. When the paint coating component 1442 is not applying paint to the transformer 17, the paint box 1443 is located below the paint coating component 1442 and is used to collect the paint dripping from the paint coating component 1442 to prevent the paint dripping from the paint coating component 1442 from spilling onto the equipment or the ground. Before the paint coating component 1442 applies paint, the paint box 1443 rotates away from the paint coating component 1442 to facilitate the paint coating component 1442 to apply paint to the transformer 17.

[0046] In this embodiment, no terminals are provided at the bottom of the transformer 17, and the varnish pool 142 contains some varnish. The depth of the varnish is half of that of the transformer 17. Therefore, only the upper part of the transformer 17 needs to be coated with varnish.

[0047] The baking and impregnation equipment also includes a table 15 located between the coating mechanism 14 and the gripping mechanism 13 for placing a cover at the top terminal of the sealing transformer 17. The gripping mechanism 13 grips the cover and places it on the transformer 17 to seal the terminals on the transformer 17. The table 15 is used to place the cover, and the cover is used to seal the terminals at the top of the transformer 17. After the second gripping component places the transformer 17 into the impregnation tank 142, the robotic arm 132 drives the first gripping component to grip the cover on the table 15 and place the cover on the transformer 17, so that the cover covers the terminals on the transformer 17. When the coating component 1442 coats the coil of the transformer 17 with coating, it can effectively prevent the coating from flowing into the terminals of the transformer 17.

[0048] Please refer to Figure 10 The drying rack 122 is set at an angle, and multiple racks 1221 for placing transformers 17 are set on the drying rack 122. The angled racks 1221 are used to place the transformers 17 after they have been coated with paint, which allows the excess paint on the coated transformers 17 to drip off quickly, preventing excess paint from adhering to the transformers 17. At the same time, it also speeds up the drying speed of the coated transformers 17.

[0049] The drying rack 122 is provided with multiple through holes 1222 for paint dripping, all of which are located below the placement rack 1221. Below the drying rack 122, there is also a detachable container 1223 for holding the paint. The paint drips into the container 1223 through the through holes 1222. The through holes 1222 are used for the paint dripping from the transformer 17 to fall into the container 1223. The container 1223 is detachably connected to the drying rack 122 for easy removal of the container 1223 to recover the paint inside.

[0050] Working principle: When coating the transformer 17, firstly, a person or a robot places the transformer 17 on the platform 1123. The second moving component 1122 moves from the second mounting bracket 1121 towards the platform 1123, grabbing the transformer 17 from the platform 1123 and placing it on the first baking device 111. The first baking device 111 bakes the transformer 17 and moves it towards the first unloading device 113. When the transformer 17 is below the first moving component 1132, the first moving component 1132 grabs the transformer 17 below and moves it above the lifting component 1133. The first moving component 1132 then places the transformer 17... Placed on the platform, the first bidirectional cylinder drives the connecting plates 1139 at both ends to move toward the transformer 17. The connecting plates 1139 drive the pressure plate 1130 to move, so that the pressure plate 1130 is above the transformer 17. The first cylinder 1135 is activated, and the first cylinder 1135 drives the first fixing plate 1136 to move toward the top plate 11331. The first fixing plate 1136 drives the fixing column 1137 to move. The fixing column 1137 pushes out the fixture 171 inside the transformer 17. Due to the action of the pressure plate 1130, and because the pressure plate 1130 is L-shaped, when the fixing column 1137 pushes out the fixture 171, the pressure plate 1130 limits the transformer 17 to prevent the transformer 17 from separating from the platform.

[0051] Furthermore, the robotic arm 132 drives the extension column 1341 to move towards and above the lifting assembly 1133. The first motor drives the extension column 1341 to rotate, which in turn drives the mounting plate 1342 to rotate, positioning the first gripping assembly above the lifting assembly 1133. The second cylinder 1340 drives the first strip plate 1347 to move towards the lifting assembly 1133. When the two first grippers 1349 on the rodless cylinder 1348 are located on both sides of the fixture 171, the rodless cylinder 1348 drives the first grippers 1349 to clamp the fixture 171. After the fixture 171 is clamped, the second bidirectional cylinder 1344 drives the connecting plate 1139 to move away from the fixture 171, causing the pressure plate 1130 to move away from the fixture 171 and release the transformer. When the device 17 is limited, the second cylinder 1340 moves the first strip plate 1347 away from the lifting assembly 1133, thereby separating the fixture 171 from the transformer 17. The first motor drives the extension column 1341 to rotate again, causing the second gripping assembly to rotate above the lifting assembly 1133. The third cylinder 1346 drives the second strip plate 1343 to move towards the transformer 17, so that the second clamps at both ends of the second bidirectional cylinder 1344 are located on both sides of the transformer 17. The second bidirectional cylinder 1344 drives the second gripper 1345 to grip the transformer 17. After the second gripper 1345 grips the transformer 17, the third cylinder 1346 drives the second strip plate 1343 away from the lifting assembly 1133, causing the gripping mechanism 13 to move the fixture 171 and the transformer 17 away from the lifting assembly 1133.

[0052] Furthermore, the robotic arm 132 drives the extension column 1341 to move towards the conveying device 16, and the first motor drives the first gripping assembly to rotate above the conveying device 16. The first gripping assembly places the fixture 171 on the conveying device 16, so that the conveying device 16 conveys the fixture 171 to the set position. The robotic arm 132 again drives the extension column 1341 to move towards the impregnation tank 142 and moves the mounting plate 1342 above the impregnation tank 142. The first motor drives the extension column 1341 to rotate so that the second gripping assembly is positioned above the impregnation tank 142. The second gripper places the gripped transformer 17 into the impregnation tank 142. The above steps are repeated. When the set number of transformers 17 in the impregnation tank 142 has been placed, the robotic arm 132 drives the extension column 1341 to move above the table 15, so that the first gripping assembly grips the table 15. The cover of component 5 is placed above transformer 17 to cover the terminals on transformer 17, preventing paint from entering the terminals during varnishing. After the gripping mechanism 13 covers all the terminals of transformer 17, the third mounting bracket 1441 moves on the fixed bracket 141. Before the third mounting bracket 1441 moves, the varnish box 1443 rotates away from below the varnishing component 1442 to prevent the varnishing component 1442 from falling into the varnish box 1443 during varnishing. After the varnish box 1443 moves away from the varnishing component 1442, the third mounting bracket 1441 moves. When the varnishing component 1442 passes the coil of transformer 17, the varnishing component 1442 dispenses paint to varnish the coil of transformer 17. After the coil of transformer 17 in the varnishing tank 142 has been varnished, the third mounting bracket 1441 returns to its initial position, and the varnish box rotates back to below the varnishing component 1442.

[0053] Furthermore, the fourth cylinder 145 drives the sealing cover 143 to close the impregnation tank 142. After the impregnation tank 142 is sealed, the air extraction assembly extracts the air from the impregnation tank 142 to eliminate air bubbles in the varnish applied to the transformer 17. When the air extraction assembly reaches the set value, it stops extracting air. At the same time, the fourth cylinder 145 drives the sealing cover 143 to open the impregnation tank 142. Simultaneously, the robotic arm 132 drives the extension column 1341 to move into the impregnation tank 142, facilitating the first gripping assembly to descend and grip the cover on the transformer 17. Meanwhile, when the cover is gripped by the first gripping assembly... When the item is gripped, the first motor drives the extension column 1341 to rotate so that the second gripping component can descend and grip the coated transformer 17. After the cover and the coated transformer 17 are gripped, the robotic arm 132 drives the extension column 1341 to move above the table 15 so that the first gripping component can place the cover on the table 15. The robotic arm 132 then drives the extension column 1341 to the drying rack 122 so that the second gripping component can place the coated transformer 17 on the placement rack 1221. Through the above operations, the placement rack 1221 is filled with transformers 17.

[0054] Furthermore, since there are two coating mechanisms 14, they can alternately coat the transformer 17 with paint. After the gripping mechanism 13 places the coated transformer 17 from the first coating mechanism 14 onto the placement rack 1221, the gripping mechanism 13 can then lift the transformer 17 from the lifting assembly 1133 and place it into the second coating mechanism 14. During this process, the transformer 17 placed on the placement rack 1221 has sufficient time to drip excess paint onto the drying platform 122. When the gripping mechanism 13 has filled the second coating mechanism 14 with transformers 17, the second coating mechanism 14... 4. During the process of coating and evacuating the transformer 17, the gripping mechanism 13 grips the dried transformer 17 on the drying platform 122 and places it in the second baking device 121, so that the second baking device 121 further dries the coating on the transformer 17. After the gripping mechanism 13 has finished gripping the transformer 17 on the drying platform 122, it grips the transformer 17 again from the lifting component 1133 and places it in the first coating mechanism 14 to form a cycle. Through the above operations, the drying of the transformer 17, removal of the jig 171, coating, drying, and re-drying can be formed into a complete process, so as to reduce manual operation, effectively speed up the processing efficiency, and increase the production capacity.

[0055] The transformer baking and impregnation equipment of this preferred embodiment involves placing the transformer in a first baking mechanism to dry it, then placing the dried transformer in a coating mechanism for coating, a gripping mechanism to place the coated transformer on a drying table, and finally placing the transformer on the drying table into a second baking device. The transformer drying, impregnation, and drying after impregnation form a complete process, thereby accelerating processing efficiency and increasing production capacity.

[0056] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A baking and impregnation apparatus for a transformer, characterized in that, It includes a first baking mechanism, a second baking mechanism, a gripping mechanism located between the first baking mechanism and the second baking mechanism, a coating mechanism located on one side of the gripping mechanism, and a conveying device located on one side of the first baking mechanism; The first baking mechanism includes a first baking device and a first feeding device and a first unloading device located at both ends of the first baking device. The first unloading device includes a first mounting frame connected to the first baking device, a lifting component mounted on the first mounting frame and close to the gripping mechanism, and a first moving component mounted on the first mounting frame for placing the transformer of the first baking device on the lifting component. The lifting component is used to push out the fixture on the transformer. The gripping mechanism includes a mounting base, a robotic arm mounted on the mounting base, and a gripping device mounted on the robotic arm. The gripping device includes an extension column mounted on the robotic arm, a first motor located above the extension column for driving the extension column to rotate, a mounting plate mounted on the extension column, and a first gripping assembly connected to both sides of the mounting plate for gripping a fixture placed on the conveying device and a second gripping assembly for gripping a transformer placed on the painting mechanism and the second baking mechanism, respectively. The coating mechanism includes a fixed frame, a coating tank installed in the fixed frame for placing transformer coating, and a coating device installed in the fixed frame and movable along the length of the coating tank for coating transformer coils. The second baking mechanism includes a second baking device and a drying table located at one end of the second baking device. The gripping mechanism grips the transformer in the paint impregnation tank, places it on the drying table for drying, and then moves it into the second baking device.

2. The transformer baking and impregnation equipment according to claim 1, characterized in that, The first feeding device includes a second mounting frame installed at the end of the first baking device away from the gripping mechanism, a shelf mounted on the second mounting frame, and a second moving component mounted on the second mounting frame. The second moving component is used to grip the transformer on the shelf and place it on the first baking device.

3. The transformer baking and impregnation equipment according to claim 1, characterized in that, The lifting assembly includes a base plate mounted on the first mounting frame, a top plate mounted on the first mounting frame above the base plate and opposite to the base plate, a plurality of first cylinders mounted on the base plate and extending along the length of the base plate, a first fixing plate connected to the first cylinders, a plurality of fixing columns located at the corners of the first fixing plate and with one end passing through the top plate, and a platform mounted on the top plate for placing the transformer. The first cylinders drive the fixing columns to lift through the first fixing plate, so as to push out the fixture inside the transformer.

4. The transformer baking and impregnation equipment according to claim 3, characterized in that, The lifting assembly also includes a second fixing plate installed between the top plate and the bottom plate, a first bidirectional cylinder installed on the second fixing plate, and connecting plates respectively installed at both ends of the first bidirectional cylinder. The connecting plates are provided with a plurality of L-shaped pressure plates, and the first bidirectional cylinder drives the pressure plates to move away from or towards the platform.

5. The transformer baking and impregnation equipment according to claim 1, characterized in that, The first gripping assembly includes a first strip plate located below one side of the mounting plate, a plurality of rodless cylinders mounted below the first strip plate, first grippers connected to both sides of one end of the rodless cylinders for gripping the transformer, and a second cylinder connected to the mounting plate and connected to the first strip plate for driving the first strip plate to move. The second gripping assembly includes a second strip plate located below the other side of the mounting plate, a plurality of second bidirectional cylinders mounted below the second strip plate, second grippers connected to both ends of the second bidirectional cylinders for gripping the fixture, and a third cylinder connected to the mounting plate and connected to the second strip plate for driving the second strip plate to move.

6. The transformer baking and impregnation equipment according to claim 1, characterized in that, The immersion tank is also equipped with a sealing cover that can be flipped over and a fourth cylinder that is connected at both ends to the immersion tank and the sealing cover respectively. The fourth cylinder is used to drive the sealing cover to open or close the immersion tank. Below the paint impregnation tank, there is also an air extraction component for extracting air from the sealed paint impregnation tank.

7. The transformer baking and impregnation equipment according to claim 1, characterized in that, The coating device includes a third mounting frame that can move along the length of the fixed frame, a plurality of coating components mounted on the third mounting frame, and a paint container mounted on the third mounting frame and rotatable on the third mounting frame. The paint container is located below the coating components. When the coating components are not coated, the paint container is located below the coating components. When the coating components are coated, the paint container rotates to move away from the area below the coating components.

8. The transformer baking and impregnation equipment according to claim 1, characterized in that, The baking and impregnation equipment also includes a table located between the coating mechanism and the gripping mechanism for placing a cover at the top terminal of the transformer, wherein the gripping mechanism grips the cover and places it on the transformer to seal the terminals on the transformer.

9. The transformer baking and impregnation equipment according to claim 1, characterized in that, The drying platform is tilted, and multiple racks for placing transformers are installed on the drying platform.

10. The transformer baking and impregnation equipment according to claim 9, characterized in that, The drying rack is provided with multiple through holes for paint dripping, and all the through holes are located below the placement rack; Below the drying rack is a detachable container for holding paint, which is attached to the drying rack. The paint drips into the container through the through hole.

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