A spraying device for a voltage equalizing cover and a spraying process thereof

Abstract

This invention discloses a spraying device and spraying process for a pressure equalization hood. The invention relates to the field of spraying equipment technology and includes a tripod base. A lifting column is installed at the top center of the tripod base. A column slide rail is installed on the tripod base away from the lifting column. A large turntable is installed on the lifting column. A cross-shaped telescopic frame is installed on the outer surface of the large turntable. A large blade cylinder is also installed on the lifting column. This pressure equalization hood spraying device and spraying process allows the paint sprayer to be vertically adjusted using a second slide, changing the installation height of the nozzle pipe within the air control component. This enables precise control of the spraying position at local heights. Simultaneously, the angled section helps to block the airflow reflected back by the pressure equalization hood, preventing a large amount of paint-containing particles from flowing back and accumulating on the nozzle pipe, thus achieving a backflow and splashing prevention function for paint molecules.

Description

Technical Field

[0001] This invention relates to the field of spraying equipment technology, specifically to a spraying device with a pressure equalization hood and its spraying process. Background Technology

[0002] At the termination of transformer cables, an equalizing shield is typically used to improve the electric field distribution around the current-conducting plate at the top of the transformer terminal and the transformer terminals, thereby improving its insulation level. Existing equalizing shields are usually designed so that the size of their connection interface is the same as the size of the current-conducting plate on the epoxy insulator. Therefore, when making an electrical connection between the transformer terminal and the transformer equipment, the terminals used for electrical connection must first be placed on the current-conducting plate of the epoxy insulator so that they are in direct contact with the current-conducting plate. Then, the connection interface of the equalizing shield is placed above the terminals and in contact with them. Finally, connecting bolts are used to fix the equalizing shield and the terminals together to the current-conducting plate. Therefore, the equalizing shield plays an important role in the operation of transformers.

[0003] During the spraying of the pressure equalizing hood, some paint-containing particles often flow back and accumulate on the nozzle tube. This not only affects the normal use of the spraying equipment, but also affects the uniform adhesion of paint molecules on the pressure equalizing hood and the spraying effect. As a result, the paint spraying effect during the surface spraying process of the pressure equalizing hood is reduced, and the service life of the pressure equalizing hood cannot be guaranteed. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a spraying device and spraying process for a pressure equalization hood, comprising a tripod base, a lifting column installed at the top center of the tripod base, a column slide rail installed on the tripod base away from the lifting column, a large turntable installed on the lifting column, a cross telescopic frame installed on the outer surface of the large turntable, a large blade cylinder installed on the lifting column, the large blade cylinder installed below the large turntable, and a suction tube installed through the inner side of the large blade cylinder;

[0005] It also includes a base frame, which is integrally assembled on the lifting column. The base frame includes a plate frame threadedly connected to the cross telescopic frame. T-shaped cavities are opened on both sides of the plate frame. An eaves component is installed at the bottom of the plate frame. A retention flat tube is connected to the outer side of the bottom end of the eaves component. Fan-shaped grooves are opened on both sides of the eaves component. The large blade cylinder is threadedly installed with the eaves component. The suction tube passes through the eaves component and is connected to the retention flat tube.

[0006] The enclosure component is installed on the side of the base frame component. The enclosure component includes a folding barrier assembled on the side of the plate frame. T-shaped clips are fixedly connected to the two side walls of the folding barrier. The folding barrier is engaged with the plate frame through the cooperation of the T-shaped clips and T-shaped clip cavities. A flexible guide is connected to the outer surface of the folding barrier. The flexible guide is flush with the eaves component. The two together form a complete conical ring structure.

[0007] A composite assembly is assembled on a column slide rail. The composite assembly includes a top component capable of moving up and down on the column slide rail. A spraying assembly is installed on one side of the bottom end of the top component. An air control component is installed at the end of the spraying assembly away from the column slide rail. The air control component is threaded onto the bottom side of the top component. A collision guide component is slidably installed on the column slide rail. The collision guide component is located below the top component. A brush cylinder is installed between the top component and the collision guide component. The brush cylinder is installed at the end away from the column slide rail.

[0008] Preferably, the flexible guide has a drainage groove on its surface, and an arc-shaped semi-tube is installed at the bottom outer edge of the flexible guide. Ball-head tubes are threaded onto both ends of the arc-shaped semi-tube. Two telescopic spring rods are symmetrically installed on the side of the flexible guide away from the ball-head tubes. The telescopic spring rods are connected to the inside of the fan-shaped groove. The folding stop, the flexible guide, and the arc-shaped semi-tube are all made of flexible material and can be folded and retracted. The foldable structure of the folding stop is located on the side away from the flexible guide, and the foldable structure of the arc-shaped semi-tube is located on the side facing the telescopic spring rods. The foldable structures of the folding stop, the flexible guide, and the arc-shaped semi-tube are all wavy grooves. The base frame is rotated and installed with the lifting column through a large turntable and a cross telescopic frame.

[0009] Preferably, the top component includes a first slide table slidably mounted on the column slide rail. A dual-axis cylinder is mounted on the side of the first slide table away from the column slide rail. A heater is fixedly mounted on the side of the dual-axis cylinder away from the collision guide component. A lifting rod is mounted in the middle of the telescopic end of the dual-axis cylinder. A first blade cylinder is embedded in the lifting rod. A scraper ring is mounted on the output end of the bottom of the first blade cylinder. The scraper ring can be fitted onto the brush cylinder and moves up and down under the drive of the first blade cylinder. A baking rod is rotatably connected to the bottom end of the lifting rod. A first rib is connected in a circular array on the outer surface of the baking rod. The output end of the heater passes through the lifting rod and is connected to the baking rod.

[0010] Preferably, the spraying assembly includes a second slide mounted on a first slide, a paint sprayer mounted on the side of the second slide away from the first slide, the second slide being vertically mounted to the first slide via the second slide, a spray nozzle tube mounted on the end of the paint sprayer away from the second slide, an adjusting component fitted on the telescopic end of the paint sprayer, two sets of cavity-enhancing components assembled on the end of the spray nozzle tube away from the paint sprayer, a ball joint assembled between the spray nozzle tube and the paint sprayer, and a flat spray nozzle also mounted on the end of the spray nozzle tube away from the paint sprayer, the flat spray nozzle being mounted between the two sets of cavity-enhancing components, wherein the cavity-enhancing components are hinged to the spray nozzle tube.

[0011] Preferably, a side clamping plate is connected to one side of the surface of the adjusting member, and an auxiliary clamping plate is connected to the other side of the surface of the adjusting member. The auxiliary clamping plate has the same structure as the side clamping plate. A micro motor is installed on the side of the side clamping plate away from the ball joint. A second blade cylinder is installed on the end of the side clamping plate away from the adjusting member. A piston connecting rod bracket is installed on the end of the second blade cylinder away from the side clamping plate. A flexible connecting rod is connected to the end of the cavity-enlarging member facing the piston connecting rod bracket. The flexible connecting rod is hinged to the piston connecting rod bracket. The inner cavity of the cavity-enlarging member is opened in the shape of a quarter-ring disc. Extrusion teeth are fixedly connected to the edge of the cavity-enlarging member away from the flexible connecting rod.

[0012] Preferably, each of the opposite sides of the flat nozzle is connected to a first moving diaphragm flap and a second moving diaphragm flap. The first and second moving diaphragm flaps are symmetrically located on both sides of the plane containing the two sets of cavity-enhancing components. Auxiliary biting blocks are symmetrically installed on the side of the first moving diaphragm flap, and moving biting blocks are symmetrically installed on the side of the second moving diaphragm flap. The first moving diaphragm flap is sealed and engaged with the second moving diaphragm flap through the cooperation of the auxiliary biting blocks and the moving biting blocks. Memory metal ribs are installed inside both the first and second moving diaphragm flaps. The initial state of the memory metal ribs is to ensure that the first and second moving diaphragm flaps are locked and engaged. The air control component includes an inclined guide plate. Side baffles are symmetrically connected to both sides of the inclined guide plate. An angle seat is connected to one corner of the side baffle away from the inclined guide plate. A bend is provided at the connection between the angle seat and the side baffle. The inclined guide plate is threadedly installed to the dual-axis cylinder through the angle seat on the side baffle. The nozzle tube is mounted between the two side baffles.

[0013] Preferably, the ball joint has a cavity on its inner side, a sleeve is fixedly connected to the middle of the ball joint, an arc-shaped guide is fitted on the sleeve, and flexible gooseneck tubes are symmetrically connected to the surface of the arc-shaped guide. The flexible gooseneck tubes can fit into the cavity and be installed with the ball joint. The arc-shaped guide is fitted with the sleeve through the cavity. One end of the arc-shaped guide is connected to the adjusting component through the flexible gooseneck tube, and the other end of the arc-shaped guide is connected to the nozzle tube through the flexible gooseneck tube.

[0014] Preferably, the collision guide includes a third slide table slidably mounted on the column slide rail. A bracket plate is fixedly connected to the side of the third slide table opposite to the column slide rail. A telescopic rod is hinged to the side of the third slide table opposite to the column slide rail. The bracket plate is used to lift and limit the bottom end of the telescopic rod. A ball is installed at the end of the telescopic rod away from the bracket plate. A micro motor is connected to the ball. A docking post is installed at the end of the micro motor away from the ball. A second rib is installed on the outer surface of the docking post. A shaped guide plate is fitted on the outer surface of the micro motor. A notch is opened on the side of the shaped guide plate away from the column slide rail to facilitate the guidance of paint.

[0015] Preferably, an inner connector is fixedly installed inside the brush cylinder, and docking cavities are opened in the middle of both the upper and lower ends of the brush cylinder. The baking rod is assembled with the brush cylinder through the cooperation of the first rib and the docking cavity, and the docking post is assembled with the brush cylinder through the cooperation of the second rib and the docking cavity. The brush cylinder is rotated and installed with the lifting rod through the cooperation of the docking post on the micro motor and the baking rod.

[0016] A micro pump is installed on the inner side of the lifting column. The end of the suction pipe near the lifting column is connected to the micro pump. The bottom end of the micro pump is connected to a return pipe, which is used to guide the sucked-back paint back and reuse it.

[0017] A coating process for a pressure equalization shield includes the following steps:

[0018] Step 1: Use the cross telescopic frame and the large blade cylinder to adjust the diameter of the ring structure formed by the base frame and the enclosure to make the outer diameter of the ring structure equal to the inner diameter of the pressure equalizing hood. Then, put the pressure equalizing hood on the ring structure and adjust the height of the lifting column to make the pressure equalizing hood and the spraying assembly at the same height.

[0019] Step 2: Simultaneously activate the spraying assembly and the large turntable to spray the pressure equalization hood clockwise. During the spraying process, the brush cylinder is brought into contact with the surface of the pressure equalization hood by the synchronous extension of the dual-axis cylinder and the telescopic rod. The paint on the surface of the pressure equalization hood is then evenly rolled and brushed using the brush cylinder.

[0020] Step 3: After the paint on the surface of the pressure equalization cover is evenly brushed by the brush, the brush is moved away from the circular structure by the synchronous retraction of the dual-axis cylinder and the telescopic rod. Then, the third slide is lowered to vertically pull the brush off the baking rod. Then, the dual-axis cylinder is used separately to bring the baking rod close to the pressure equalization cover. The heating machine is used to heat the baking rod. At the same time, the large turntable drives the pressure equalization cover to rotate clockwise. The baking rod is used to rotate and dry the paint on the pressure equalization cover, so that the paint can be quickly formed on the surface of the pressure equalization cover.

[0021] This invention provides a spraying device and spraying process for a pressure equalization hood, which has the following beneficial effects:

[0022] I. The spraying device and spraying process of the pressure equalizing hood can drive the pressure equalizing hood to make vertical lifting and lowering movements through the lifting column. It can also drive the brush cylinder to make vertical lifting and lowering movements through the synchronous lifting and lowering movements of the dual-axis cylinder and the third slide on the column slide rail. With the height of the pressure equalizing hood and the brush cylinder being adjustable, after the spraying component and the brush cylinder have completed a complete circumferential spraying roller operation on the upper side of the outer surface of the pressure equalizing hood, the spraying component and the brush cylinder can be driven to move down synchronously while the pressure equalizing hood moves up. This can achieve a dual-effect spraying roller operation on the high-model pressure equalizing hood, and can quickly complete the top-to-bottom rapid spraying roller operation on the outer surface of the pressure equalizing hood.

[0023] II. The spraying device and spraying process of the pressure equalizing hood, by simultaneously starting the dual-axis cylinder and retracting the third slide, allows the brush cylinder to detach from the pressure equalizing hood, and ensures that the projection of the guide notch of the irregular guide plate can fall on the eaves or flexible guide. Then, by activating the first blade cylinder, the scraper ring is driven to scrape downward on the brush cylinder. Through the collection and guidance of the paint by the irregular guide plate, the paint remaining on the brush cylinder can be scraped and guided to the eaves or flexible guide in a timely manner, participating in the paint return process, realizing the recycling of the paint remaining on the brush cylinder, and also realizing the automatic cleaning function of the paint on the brush cylinder.

[0024] III. The spraying device and spraying process of the pressure equalizing hood, through the synchronous telescopic movement of the dual-axis cylinder and the third slide, can change the distance between the brush cylinder and the surface of the pressure equalizing hood, and can perform close-fitting roller brushing on pressure equalizing hoods of different wall thicknesses; it can also activate the third slide to move downward and the dual-axis cylinder to move upward when the brush cylinder is roller brushing the pressure equalizing hood, so that the brush cylinder is detached from the bottom of the baking rod, while continuing to use the small up and down movement of the lifting rod, and using the ball to make small-amplitude collisions on the truncated pyramidal surface of the base frame or enclosure structure, that is, on the eaves or flexible guide, to help accelerate the downward guiding speed of the paint and speed up the paint return collection progress.

[0025] IV. The spraying device and spraying process of the pressure equalizing hood can achieve passive uniform brushing of paint on the surface of the pressure equalizing hood by utilizing the clockwise rotation of the pressure equalizing hood itself. It can also selectively achieve active brushing of the brush and the pressure equalizing hood in the same or opposite directions by using a micro motor to drive the active rotation of the brush cylinder, thereby controlling the brushing effect of the brush cylinder on the paint and controlling the quality and efficiency of uniform brushing of the paint.

[0026] V. The spraying device and spraying process of the pressure equalizing hood limit and protect the nozzle tube by the air control component, so as to prevent the airflow from interfering with the paint spraying from the inside of the flat nozzle, and ensure that the paint is not easily affected by the external airflow and the spraying range is easily changed, so as to achieve precise spraying of paint on the pressure equalizing hood.

[0027] VI. The spraying device and spraying process of the pressure equalization hood can be vertically adjusted by the paint sprayer with the help of the second slide, which can change the installation height of the nozzle tube in the air control component. This allows for precise control of the spraying position at local height positions. At the same time, the bend can be used to assist in blocking the airflow reflected back by the pressure equalization hood, preventing a large amount of paint-containing particles from flowing back and accumulating on the nozzle tube, thus achieving the function of preventing backflow and splashing of paint molecules.

[0028] VII. The spraying device and spraying process of this pressure equalizing hood, by using a micro motor, can drive the nozzle tube to rotate through a ball joint. At the end position of the ball joint, the angle between the nozzle tube and the ball joint can be changed to achieve fine adjustment of the spraying angle, thereby achieving precise adjustment and change of the spraying angle. It can automatically adjust the spraying angle for different spraying needs. During the adjustment, the cavity opened in the ball joint can also be used to squeeze the flexible gooseneck tube, change the size of the local flow section of the flexible gooseneck tube, and achieve micro-pressurization of the paint before spraying. This, combined with the adjusted angle, ensures the spraying effect of the paint on the pressure equalizing hood.

[0029] 8. The spraying device and spraying process of the equalizing hood, by activating the second blade cylinder to drive the piston connecting rod frame to extend, and under the guiding action of the hinged connection between the piston connecting rod frame and the flexible connecting rod, the cavity-enhancing component can rotate and approach the flat nozzle around the part hinged to the nozzle tube, and finally fit against the upper and lower sides of the flat nozzle. The extrusion teeth push the interlocking moving diaphragm flap one and moving diaphragm flap two apart, so that the inner cavity of the flat nozzle and the inner cavity of the cavity-enhancing component are connected. This can automatically expand the longitudinal cross section of the spray cavity when the flat nozzle sprays paint, and expand the effective spraying height of the paint in the longitudinal direction. Thus, the effective longitudinal spraying height of the flat nozzle can be selectively adjusted according to the specific height of the equalizing hood, so as to realize the spraying process of the surface of different types of equalizing hoods. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the external structure of a spraying device and spraying process for a pressure equalization hood according to the present invention.

[0031] Figure 2 This is a schematic diagram of the structure of the base frame component of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the enclosure component of the present invention;

[0033] Figure 4 This is a partial structural schematic diagram of the flexible conductor of the present invention;

[0034] Figure 5 This is a schematic diagram of a partial assembly structure of the plate frame and the lifting column of the present invention;

[0035] Figure 6This is a schematic diagram of the column slide rail and composite assembly of the present invention;

[0036] Figure 7 This is a schematic diagram of the structure of the top component and the third slide of the present invention;

[0037] Figure 8 This is a partial disassembly diagram of the top component and brush cylinder of the present invention;

[0038] Figure 9 This is a schematic diagram of the structure of the spraying assembly of the present invention;

[0039] Figure 10 This is a schematic diagram of the nozzle tube and ball joint of the present invention;

[0040] Figure 11 This is a schematic diagram of the structure of the adjusting component and the cavity-enlarging component of the present invention;

[0041] Figure 12 This is a partial disassembly diagram of the ball joint and nozzle pipe of the present invention;

[0042] Figure 13 This is a schematic diagram of the flat nozzle of the present invention;

[0043] Figure 14 This is a schematic diagram of the air control component of the present invention;

[0044] Figure 15 This is a schematic diagram of the collision diversion component of the present invention;

[0045] Figure 16 This is a schematic diagram of the disassembled structure of the brush cylinder of the present invention.

[0046] In the diagram: 1. Tripod base; 2. Lifting column; 3. Base frame; 31. Panel frame; 32. T-shaped cavity; 33. Eaves; 34. Retention flat tube; 35. Fan-shaped groove; 4. Enclosure; 41. Folding barrier; 42. T-shaped clip; 43. Flexible guide; 44. Drainage channel; 45. Arc-shaped semi-tube fitting; 46. Ball-head tube; 47. Telescopic spring rod; 5. Column slide rail; 6. Composite assembly; 61. Top mounting component; 62. Spraying assembly; 63. Air control component; 64. Collision guide component; 65. Brush cylinder; 611. First slide table; 612. Dual-axis cylinder; 613. Heater; 614. Suspended rod; 615. First blade cylinder; 616. Scraper ring; 617. Baking rod; 618. First rib; 621. Second slide table; 622. Spray painting machine; 623. Spray nozzle tube; 624. Adjusting component; 625. Cavity-enhancing component; 626. Ball joint component; 627. Flat spray nozzle; 2 41. Side clamp; 628. Auxiliary clamp; 242. Micro motor; 243. Second blade cylinder; 244. Piston connecting rod bracket; 251. Flexible connecting rod; 252. Extrusion teeth; 261. Cavity assembly; 262. Sleeve column; 263. Arc-shaped conduit; 264. Flexible gooseneck tube; 271. Movable flap one; 272. Movable flap two; 273. Auxiliary bite block; 274. Movable bite block; 275. Memory metal rib; 631. Inclined guide base plate; 6 32. Side baffle; 633. Corner seat; 634. Folded corner section; 641. Third slide; 642. Bracket plate; 643. Telescopic rod; 644. Bumper ball; 645. Micro motor; 646. Irregularly shaped guide plate; 648. Docking column; 649. Second rib; 651. Inner body; 652. Docking cavity; 8. Large turntable; 9. Cross telescopic frame; 10. Large blade cylinder; 11. Suction pipe; 12. Micro pump; 13. Return pipe. Detailed Implementation

[0047] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0048] First embodiment, such as Figures 1 to 16As shown, the present invention provides a technical solution: a spraying device for a pressure equalization hood and its spraying process, including a tripod 1, a lifting column 2 installed at the top center of the tripod 1, a column slide rail 5 installed on the tripod 1 away from the lifting column 2, a large turntable 8 installed on the lifting column 2, a cross telescopic frame 9 installed on the outer surface of the large turntable 8, a large blade cylinder 10 also installed on the lifting column 2, the large blade cylinder 10 is installed below the large turntable 8, and a suction tube 11 is installed through the inner side of the large blade cylinder 10;

[0049] It also includes a base frame 3, which is assembled on the lifting column 2. The base frame 3 includes a plate frame 31 threadedly connected to the cross telescopic frame 9. T-shaped cavities 32 are opened on both sides of the plate frame 31. An eaves 33 is installed at the bottom of the plate frame 31. A retention flat tube 34 is connected to the outer side of the bottom end of the eaves 33. Fan-shaped grooves 35 are opened on both sides of the eaves 33. The large blade cylinder 10 is threadedly installed with the eaves 33. The suction tube 11 passes through the eaves 33 and is connected to the retention flat tube 34.

[0050] Enclosure component 4 is installed on the side of the base frame component 3. Enclosure component 4 includes a folding barrier 41 assembled on the side of the plate frame 31. T-shaped clips 42 are fixedly connected to the two side walls of the folding barrier 41. The folding barrier 41 is engaged with the plate frame 31 through the cooperation of the T-shaped clips 42 and the T-shaped clip cavity 32. A flexible guide 43 is connected to the outer surface of the folding barrier 41. The flexible guide 43 is flush with the eaves component 33. The two together form a complete conical ring structure.

[0051] A composite assembly 6 is assembled on a column slide rail 5. The composite assembly 6 includes a top component 61 that can move up and down on the column slide rail 5. A spraying component 62 is installed on one side of the bottom end of the top component 61. An air control component 63 is installed on the end of the spraying component 62 away from the column slide rail 5. The air control component 63 is threaded onto the bottom side of the top component 61. A collision guide component 64 is slidably installed on the column slide rail 5. The collision guide component 64 is located below the top component 61. A brush cylinder 65 is installed between the top component 61 and the collision guide component 64. The brush cylinder 65 is installed at the end away from the column slide rail 5.

[0052] A micro pump 12 is installed on the inner side of the lifting column 2. The end of the suction pipe 11 near the lifting column 2 is connected to the micro pump 12. The bottom end of the micro pump 12 is connected to the return pipe 13, which is used to guide the back-suctioned paint back and reuse it.

[0053] In use, first use the cross telescopic frame 9 and the large blade cylinder 10 to adjust the diameter of the ring structure formed by the base frame 3 and the enclosure 4 so that the outer diameter of the ring structure is equal to the inner diameter of the pressure equalizing hood. Then, put the pressure equalizing hood on the ring structure and adjust the height of the lifting column 2 so that the pressure equalizing hood and the spraying assembly 62 are at the same height.

[0054] Then, the spraying assembly 62 and the large turntable 8 are activated simultaneously to spray the pressure equalizing cover clockwise. During the spraying process, the brush cylinder 65 is brought into contact with the surface of the pressure equalizing cover by the synchronous extension of the dual-axis cylinder 612 and the telescopic rod 643, and the paint on the surface of the pressure equalizing cover is evenly brushed by the brush cylinder 65.

[0055] Finally, after the paint on the surface of the pressure equalization cover is evenly brushed by the brush 65, the brush 65 is moved away from the annular structure by the synchronous retraction of the dual-axis cylinder 612 and the telescopic rod 643. Then, the third slide 641 is lowered to vertically pull the brush 65 off the baking rod 617. Then, the dual-axis cylinder 612 is used alone to bring the baking rod 617 close to the pressure equalization cover. The heating machine 613 is used to heat the baking rod 617. At the same time, the large turntable 8 is used to drive the pressure equalization cover to rotate clockwise. The paint on the pressure equalization cover is dried by the rotation of the baking rod 617, so that the paint can be quickly formed on the surface of the pressure equalization cover.

[0056] During use, the positioning and lifting platform of the ring structure formed by the base frame 3 and the enclosure 4 can be adaptively adjusted according to the inner diameter of the pressure equalization cover by adjusting the synchronous extension and retraction of the cross telescopic frame 9 and the large blade cylinder 10. After the pressure equalization cover is fitted onto the ring structure, the pressure equalization cover can be positioned on the ring structure by simultaneously extending the cross telescopic frame 9 and the large blade cylinder 10, thus preventing ineffective rolling when the pressure equalization cover is evenly coated with paint on the surface of the brush cylinder 65.

[0057] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 1 to 8 As shown, the surface of the flexible guide 43 is provided with a drainage groove 44. An arc-shaped semi-tube 45 is installed at the bottom outer edge of the flexible guide 43. Ball-head tubes 46 are threaded at both ends of the arc-shaped semi-tube 45. Two telescopic spring rods 47 are symmetrically installed on the side of the flexible guide 43 away from the ball-head tubes 46. The telescopic spring rods 47 are connected to the inside of the fan-shaped groove 35. The folding stop 41, the flexible guide 43 and the arc-shaped semi-tube 45 are all made of flexible material and can be folded and retracted. The foldable structure of the folding stop 41 is located on the side away from the flexible guide 43, and the foldable structure of the arc-shaped semi-tube 45 is located on the side facing the telescopic spring rods 47. The foldable structures of the folding stop 41, the flexible guide 43 and the arc-shaped semi-tube 45 are all wavy grooves. The base frame 3 is rotated and installed with the lifting column 2 through the cooperation of the large turntable 8 and the cross telescopic frame 9.

[0058] During spraying, excess paint can be diverted into the inside of the retention flat tube 34 via the eaves 33. The paint can also be divided into multiple streams and diverted into the inside of the arc-shaped semi-tube 45 via the flexible guide 43 and the drainage groove 44 on the flexible guide 43. The paint is then guided into the retention flat tube 34 via the ball head tube 46. The paint retained in the retention flat tube 34 can be sucked into the micro pump 12 via the suction pipe 11, while simultaneously being discharged from the return pipe 13. By connecting the return pipe 13 to the input end of the paint sprayer 622, paint recycling and reuse can be achieved, reducing paint waste. Furthermore, the base frame 3 and the enclosure 4 intercept the paint, preventing contamination of other structural components of the spraying device and avoiding paint dripping onto the worktable, thus preventing paint pollution of the surrounding working environment and reducing the overall pollution caused by paint.

[0059] The paint is divided into several streams and guided into the arc-shaped semi-pipe 45 by several drainage channels 44 opened on the flexible guide 43. This prevents excessive paint from accumulating on the flexible guide 43 and instead guides it to the eaves 33. This avoids the paint flowing to the junction of the eaves 33 and the flexible guide 43 and contaminating the joint between the two structural components. This also facilitates the later disassembly of the panel frame 31 and the folding block 41.

[0060] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 1 to 8 As shown, the top component 61 includes a first slide 611 slidably mounted on the column slide rail 5. A dual-axis cylinder 612 is mounted on the side of the first slide 611 away from the column slide rail 5. A heater 613 is fixedly mounted on the side of the dual-axis cylinder 612 away from the collision guide component 64. A lifting rod 614 is mounted in the middle of the telescopic end of the dual-axis cylinder 612. A first blade cylinder 615 is embedded in the lifting rod 614. A scraper ring 616 is mounted on the output end of the bottom of the first blade cylinder 615. The scraper ring 616 can be fitted onto the brush cylinder 65 and moves up and down under the drive of the first blade cylinder 615. A baking rod 617 is rotatably connected to the bottom end of the lifting rod 614. A first rib 618 is connected in a circular array on the outer surface of the baking rod 617. The output end of the heater 613 passes through the lifting rod 614 and is connected to the baking rod 617.

[0061] The spraying assembly 62 includes a second slide 621 mounted on a first slide 611. A paint sprayer 622 is mounted on the side of the second slide 621 away from the first slide 611. The second slide 621 is lifted and lowered from the first slide 611. A nozzle tube 623 is mounted on the end of the paint sprayer 622 away from the second slide 621. An adjusting component 624 is fitted on the telescopic end of the paint sprayer 622. Two sets of cavity-enlarging components 625 are assembled on the end of the nozzle tube 623 away from the paint sprayer 622. A ball joint 626 is assembled between the nozzle tube 623 and the paint sprayer 622. A flat nozzle 627 is also mounted on the end of the nozzle tube 623 away from the paint sprayer 622. The flat nozzle 627 is installed between the two sets of cavity-enlarging components 625, wherein the cavity-enlarging components 625 are hinged to the nozzle tube 623.

[0062] A side clamping plate 241 is connected to one side of the surface of the adjusting component 624, and an auxiliary clamping plate 628 is connected to the other side of the surface of the adjusting component 624. The auxiliary clamping plate 628 has the same structure as the side clamping plate 241. A micro motor 242 is installed on the side of the side clamping plate 241 away from the ball joint 626. A second blade cylinder 243 is installed on the end of the side clamping plate 241 away from the adjusting component 624. A piston connecting rod bracket 244 is installed on the end of the second blade cylinder 243 away from the side clamping plate 241. A flexible connecting rod 251 is connected to the end of the cavity-enlarging component 625 facing the piston connecting rod bracket 244. The flexible connecting rod 251 is hinged to the piston connecting rod bracket 244. The inner cavity of the cavity-enlarging component 625 is opened in the shape of a quarter-ring disc. A tooth 252 is fixedly connected to the edge of the cavity-enlarging component 625 away from the flexible connecting rod 251.

[0063] On opposite sides of the flat nozzle 627, there are movable diaphragm flaps 1 and 271 and 272 respectively. Movable diaphragm flaps 1 and 272 are symmetrically located on both sides of the plane containing the two sets of cavity-enhancing components 625. Auxiliary biting blocks 273 are symmetrically installed on the side of movable diaphragm flap 1, and movable biting blocks 274 are symmetrically installed on the side of movable diaphragm flap 272. Movable diaphragm flap 1 271 is sealed and engaged with movable diaphragm flap 272 through the cooperation of auxiliary biting blocks 273 and movable biting blocks 274. Memory metal ribs 275 are installed inside both movable diaphragm flaps 1 and 272. The initial state of the metal rib 275 is to make the first moving diaphragm flap 271 and the second moving diaphragm flap 272 engage and close. The air control component 63 includes an inclined guide plate 631. Side baffles 632 are symmetrically connected to both sides of the inclined guide plate 631. An angle seat 633 is connected to one corner of the side baffle 632 away from the inclined guide plate 631. An angled part 634 is provided at the connection between the angle seat 633 and the side baffle 632. The inclined guide plate 631 is threadedly installed to the dual-axis cylinder 612 through the angle seat 633 on the side baffle 632. The nozzle pipe 623 is mounted between the two side baffles 632.

[0064] The ball joint 626 has a cavity 261 on its inner side. A sleeve 262 is fixedly connected to the middle of the ball joint 626. An arc-shaped guide tube 263 is fitted on the sleeve 262. A flexible gooseneck tube 264 is symmetrically connected to the surface of the arc-shaped guide tube 263. The flexible gooseneck tube 264 can fit into the cavity 261 and the ball joint 626. The arc-shaped guide tube 263 is fitted into the sleeve 262 through the cavity 261. One end of the arc-shaped guide tube 263 is connected to the adjusting member 624 through the flexible gooseneck tube 264. The other end of the arc-shaped guide tube 263 is connected to the nozzle tube 623 through the flexible gooseneck tube 264.

[0065] The collision guide component 64 includes a third slide 641 slidably mounted on the column slide rail 5. A bracket plate 642 is fixedly connected to the side of the third slide 641 away from the column slide rail 5. A telescopic rod 643 is hinged to the side of the third slide 641 away from the column slide rail 5. The bracket plate 642 is used to lift and limit the bottom end of the telescopic rod 643. A ball bearing 644 is installed at the end of the telescopic rod 643 away from the bracket plate 642. A micro motor 645 is connected to the ball bearing 644. A docking post 648 is installed at the end of the micro motor 645 away from the ball bearing 644. A second rib 649 is installed on the outer surface of the docking post 648. A shaped guide plate 646 is fitted on the outer surface of the micro motor 645. A notch is opened on the side of the shaped guide plate 646 away from the column slide rail 5 to facilitate the guidance of paint.

[0066] The brush cylinder 65 has an internal connector 651 fixedly installed inside. The brush cylinder 65 has a docking cavity 652 in the middle of both the upper and lower ends. The baking rod 617 is assembled with the brush cylinder 65 through the cooperation of the first rib 618 and the docking cavity 652. The docking post 648 is assembled with the brush cylinder 65 through the cooperation of the second rib 649 and the docking cavity 652. The brush cylinder 65 is rotated and installed with the hanging rod 614 through the cooperation of the docking post 648 on the micro motor 645 and the baking rod 617.

[0067] During spraying, the lifting column 2 can drive the pressure equalizing hood to move vertically up and down. It can also drive the brush cylinder 65 to move vertically up and down through the synchronous lifting and lowering of the dual-axis cylinder 612 and the third slide 641 on the column slide rail 5. Since the height of the pressure equalizing hood and the brush cylinder 65 can be adjusted, after the spraying component 62 and the brush cylinder 65 have completed a complete circumferential spraying operation on the upper side of the outer surface of the pressure equalizing hood, the spraying component 62 and the brush cylinder 65 can move down synchronously while the pressure equalizing hood moves up. This can achieve a dual-effect spraying operation on the high-grade pressure equalizing hood, and can quickly complete the top-to-bottom spraying operation on the outer surface of the pressure equalizing hood.

[0068] After the pressure equalization hood surface is sprayed and evenly coated with paint, the brush cylinder 65 can be detached from the pressure equalization hood by simultaneously activating the dual-axis cylinder 612 and the third slide 641 to retract. This ensures that the projection of the guide notch of the irregular guide plate 646 falls on the eaves 33 or the flexible guide 43. Then, by activating the first blade cylinder 615, the scraper ring 616 is driven to scrape downwards on the brush cylinder 65. Through the collection and guidance of the paint by the irregular guide plate 646, the paint remaining on the brush cylinder 65 can be scraped and guided to the eaves 33 or the flexible guide 43 in a timely manner, participating in the paint return process. This realizes the recycling of the paint remaining on the brush cylinder 65, and also realizes the automatic cleaning of the paint on the brush cylinder 65, achieving the automatic cleaning function of the brush cylinder 65.

[0069] The synchronous telescopic movement of the dual-axis cylinder 612 and the third slide 641 can change the distance between the brush cylinder 65 and the surface of the pressure equalization hood, enabling the brushing of pressure equalization hoods with different wall thicknesses. Furthermore, while the brush cylinder 65 is brushing the pressure equalization hood, the third slide 641 can be activated to move downwards, and the dual-axis cylinder 612 can be activated to move upwards. This allows the brush cylinder 65 to detach from the bottom of the baking rod 617. Simultaneously, the lifting rod 614 moves up and down slightly, and the ball 644 makes a small impact on the truncated pyramidal surface of the base frame 3 or the enclosure 4 structure, i.e., on the eaves 33 or the flexible guide 43, thereby accelerating the downward flow of paint and speeding up the paint return collection process.

[0070] During the uniform brushing of the clockwise rotating pressure equalizing cover by the brush cylinder 65, not only can the clockwise rotation of the pressure equalizing cover itself achieve passive uniform brushing of the paint on the surface of the pressure equalizing cover, but also the active rotation of the brush cylinder 65 driven by the micro motor 645 can selectively achieve active brushing of the brush cylinder 65 and the pressure equalizing cover in the same or opposite directions. This allows for the control of the brushing effect of the brush cylinder 65 on the paint, and the control of the quality and efficiency of uniform brushing of the paint.

[0071] The nozzle tube 623 is limited and protected by the air control component 63 to prevent airflow from interfering with the paint spraying out of the flat nozzle 627, ensuring that the paint is not easily affected by external airflow and the spray range is not easily changed, thus achieving precise spraying of paint on the pressure equalization cover.

[0072] Meanwhile, the paint sprayer 622 can be vertically adjusted by means of the second slide 621, which can change the installation height of the nozzle pipe 623 in the air control component 63. This allows for precise control of the spraying position at local heights. At the same time, the bend 634 can be used to assist in blocking the airflow reflected back by the pressure equalization shroud, preventing a large amount of paint-containing particles from flowing back and accumulating on the nozzle pipe 623, thus achieving the function of preventing backflow and splashing of paint molecules.

[0073] At the same time, the paint molecules can be collected by the side baffle 632 and uniformly guided by the inclined guide plate 631 to the base frame 3 or the enclosure 4, realizing the third recycling of paint by the spraying device.

[0074] By activating the micro motor 242, the nozzle tube 623 can be rotated via the ball joint 626. At the end of the ball joint 626, the angle between the nozzle tube 623 and the ball joint 626 can be changed, thereby achieving fine adjustment of the spray angle and precise adjustment of the spray angle. The spray angle can be automatically adjusted for different spraying needs. During the adjustment, the cavity 261 in the ball joint 626 can also be used to squeeze the flexible gooseneck tube 264, changing the local flow cross-section of the flexible gooseneck tube 264, thereby achieving micro-pressurization of the paint before spraying. This, combined with the adjusted angle, ensures the coating effect of the paint on the pressure equalization hood.

[0075] By activating the second blade cylinder 243 to extend the piston connecting rod 244, and using the hinged guidance of the piston connecting rod 244 and the flexible connecting rod 251, the cavity-enlarging component 625 can rotate around the part hinged to the nozzle tube 623 and approach the flat nozzle 627, and finally fit against the upper and lower sides of the flat nozzle 627. The extrusion teeth 252 push the interlocked moving diaphragm flaps 1 and 272 apart, so that the inner cavity of the flat nozzle 627 is connected to the inner cavity of the cavity-enlarging component 625. This can automatically expand the longitudinal cross section of the spray cavity when the flat nozzle 627 sprays paint, and expand the effective spraying height of the paint in the longitudinal direction. Thus, the effective longitudinal spraying height of the flat nozzle 627 can be selectively adjusted according to the specific height of the pressure equalizing hood, so as to realize the spraying process of the surface of different types of pressure equalizing hoods.

[0076] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A spraying device and spraying process for a pressure equalization hood, comprising a tripod (1), characterized in that: A lifting column (2) is installed at the top center of the tripod (1). A column slide rail (5) is installed on the tripod (1) away from the lifting column (2). A large turntable (8) is installed on the lifting column (2). A cross telescopic frame (9) is installed on the outer surface of the large turntable (8). A large blade cylinder (10) is also installed on the lifting column (2). The large blade cylinder (10) is installed below the large turntable (8). A suction tube (11) is installed through the inner side of the large blade cylinder (10). It also includes a base frame (3), which is assembled on the lifting column (2). The base frame (3) includes a plate frame (31) threadedly connected to the cross telescopic frame (9). T-shaped cavities (32) are provided on both sides of the plate frame (31). An eaves piece (33) is installed at the bottom of the plate frame (31). A retention flat tube (34) is connected to the outer side of the bottom of the eaves piece (33). Fan-shaped grooves (35) are provided on both sides of the eaves piece (33). The large blade cylinder (10) is threadedly installed with the eaves piece (33). The suction tube (11) passes through the eaves piece (33) and connects to the retention flat tube (34). Enclosure component (4), which is installed on the side of the base frame component (3), the enclosure component (4) includes a folding block (41) assembled on the side of the plate frame (31), T-shaped clips (42) are fixedly connected to the two side walls of the folding block (41), the folding block (41) is engaged with the plate frame (31) through the T-shaped clips (42) and the T-shaped clip cavity (32), the outer surface of the folding block (41) is connected to a flexible guide (43), the flexible guide (43) is flush with the eaves component (33), and the two together form a complete conical ring structure; A composite assembly (6) is assembled on a column slide rail (5). The composite assembly (6) includes a top component (61) that can move up and down on the column slide rail (5). A spraying component (62) is installed on one side of the bottom end of the top component (61). An air control component (63) is installed at the end of the spraying component (62) away from the column slide rail (5). The air control component (63) is threaded onto the bottom side of the top component (61). A collision guide component (64) is slidably installed on the column slide rail (5). The collision guide component (64) is located below the top component (61). A brush cylinder (65) is installed between the top component (61) and the collision guide component (64). The brush cylinder (65) is installed at the end away from the column slide rail (5).

2. The spraying device and spraying process for a pressure equalization hood according to claim 1, characterized in that: The flexible guide (43) has a drainage groove (44) on its surface. An arc-shaped semi-tube (45) is installed at the outer edge of the bottom end of the flexible guide (43). Ball-head tubes (46) are threaded onto both ends of the arc-shaped semi-tube (45). Two telescopic spring rods (47) are symmetrically installed on the side of the flexible guide (43) away from the ball-head tubes (46). The telescopic spring rods (47) are connected to the inside of the fan-shaped groove (35). The folding stop (41), the flexible guide (43), and the arc-shaped semi-tube (45) are all Made of flexible material, all three can be folded and retracted. The foldable structure of the folding stop (41) is located on the side away from the flexible guide (43), and the foldable structure of the arc-shaped semi-tube (45) is located on the side facing the telescopic spring rod (47). The foldable structures of the folding stop (41), the flexible guide (43), and the arc-shaped semi-tube (45) are all wavy grooves. The base frame (3) is rotated and installed with the lifting column (2) through the cooperation of the large turntable (8) and the cross telescopic frame (9).

3. The spraying device and spraying process for a pressure equalization hood according to claim 1, characterized in that: The top component (61) includes a first slide (611) slidably mounted on the column slide rail (5). A dual-axis cylinder (612) is mounted on the side of the first slide (611) away from the column slide rail (5). A heater (613) is fixedly mounted on the side of the dual-axis cylinder (612) away from the collision guide component (64). A lifting rod (614) is mounted in the middle of the telescopic end of the dual-axis cylinder (612). A first blade cylinder (615) is embedded in the lifting rod (614). A scraper ring (616) is installed on the output end of the first blade cylinder (615). The scraper ring (616) can be fitted onto the brush cylinder (65) and moves up and down under the drive of the first blade cylinder (615). A baking rod (617) is rotatably connected to the bottom end of the lifting rod (614). The outer surface of the baking rod (617) is connected with a first rib (618) in a circular array. The output end of the heating machine (613) passes through the lifting rod (614) and is connected to the baking rod (617).

4. The spraying device and spraying process for a pressure equalization hood according to claim 3, characterized in that: The spraying assembly (62) includes a second slide (621) mounted on a first slide (611). A paint sprayer (622) is mounted on the side of the second slide (621) away from the first slide (611). The second slide (621) is vertically mounted to the first slide (611). A spray nozzle pipe (623) is mounted on the end of the paint sprayer (622) away from the second slide (621). A telescopic end of the paint sprayer (622) is fitted with... An adjusting component (624) is provided. Two sets of cavity-enlarging components (625) are assembled at the end of the nozzle tube (623) away from the paint sprayer (622). A ball joint (626) is assembled between the nozzle tube (623) and the paint sprayer (622). A flat nozzle (627) is also installed at the end of the nozzle tube (623) away from the paint sprayer (622). The flat nozzle (627) is installed between the two sets of cavity-enlarging components (625). The cavity-enlarging components (625) are hinged to the nozzle tube (623).

5. The spraying device and spraying process for a pressure equalization hood according to claim 4, characterized in that: A side clamping plate (241) is connected to one side of the surface of the adjusting member (624), and an auxiliary clamping plate (628) is connected to the other side of the surface of the adjusting member (624). The auxiliary clamping plate (628) has the same structure as the side clamping plate (241). A micro motor (242) is installed on the side of the side clamping plate (241) away from the ball joint (626). A second blade cylinder (243) is installed at the end of the side clamping plate (241) away from the adjusting member (624). A piston connecting rod bracket (244) is installed at the end of the cylinder (243) away from the side clamp (241); a flexible connecting rod (251) is connected to the end of the cavity-enlarging component (625) facing the piston connecting rod bracket (244), the flexible connecting rod (251) is hinged to the piston connecting rod bracket (244), the inner cavity of the cavity-enlarging component (625) is opened in the shape of a quarter ring, and a tooth (252) is fixedly connected to the edge of the cavity-enlarging component (625) away from the flexible connecting rod (251).

6. The spraying device and spraying process for a pressure equalization hood according to claim 5, characterized in that: The flat nozzle (627) has two moving diaphragm flaps (271 and 272) connected to its opposite side edges. The moving diaphragm flaps (271 and 272) are symmetrically positioned on both sides of the plane containing the two sets of cavity-enlarging components (625). Auxiliary biting blocks (273) are symmetrically installed on the side of the moving diaphragm flap (271), and moving biting blocks (274) are symmetrically installed on the side of the moving diaphragm flap (272). The moving diaphragm flap (271) is sealed and engaged with the moving diaphragm flap (272) through the cooperation of the auxiliary biting blocks (273) and the moving biting blocks (274). Both the moving diaphragm flap (271) and the moving diaphragm flap (272) have memory metal ribs (275) installed inside. The initial state of the rib (275) is such that the first moving diaphragm flap (271) and the second moving diaphragm flap (272) are engaged and sealed. The air control component (63) includes an inclined guide plate (631). Side baffles (632) are symmetrically connected to both sides of the inclined guide plate (631). An angle seat (633) is connected to one corner of the side baffle (632) away from the inclined guide plate (631). A bend (634) is provided at the connection between the angle seat (633) and the side baffle (632). The inclined guide plate (631) is threadedly installed to the dual-shaft cylinder (612) through the angle seat (633) on the side baffle (632). The nozzle pipe (623) is mounted between the two side baffles (632).

7. The spraying device and spraying process for a pressure equalization hood according to claim 6, characterized in that: The ball joint (626) has a cavity (261) on its inner side. A sleeve (262) is fixedly connected to the middle of the ball joint (626). An arc-shaped guide tube (263) is fitted on the sleeve (262). A flexible gooseneck tube (264) is symmetrically connected to the surface of the arc-shaped guide tube (263). The flexible gooseneck tube (264) can fit into the cavity (261) and the ball joint (626). The arc-shaped guide tube (263) is fitted into the sleeve (262) through the cavity (261). One end of the arc-shaped guide tube (263) is connected to the adjusting member (624) through the flexible gooseneck tube (264), and the other end of the arc-shaped guide tube (263) is connected to the nozzle tube (623) through the flexible gooseneck tube (264).

8. The spraying device and spraying process for a pressure equalization hood according to claim 1, characterized in that: The collision deflector (64) includes a third slide (641) slidably mounted on the column slide rail (5). A bracket plate (642) is fixedly connected to the side of the third slide (641) facing away from the column slide rail (5). A telescopic rod (643) is hinged to the side of the third slide (641) facing away from the column slide rail (5). The bracket plate (642) is used to lift and limit the bottom end of the telescopic rod (643). The end of the telescopic rod (643) away from the bracket plate (642) A ball bearing (644) is installed, and a micro motor (645) is connected to the ball bearing (644). A docking post (648) is installed at the end of the micro motor (645) away from the ball bearing (644). A second rib (649) is installed on the outer surface of the docking post (648). A shaped guide plate (646) is fitted on the outer surface of the micro motor (645). The shaped guide plate (646) has a notch on the side away from the column slide rail (5) to facilitate the guidance of paint.

9. The spraying device and spraying process for a pressure equalization hood according to claim 1, characterized in that: The brush cylinder (65) has an internal connector (651) fixedly installed inside. The brush cylinder (65) has a docking cavity (652) in the middle of both the upper and lower ends. The baking rod (617) is assembled with the brush cylinder (65) through the cooperation of the first rib (618) and the docking cavity (652). The docking post (648) is assembled with the brush cylinder (65) through the cooperation of the second rib (649) and the docking cavity (652). The brush cylinder (65) is rotated and installed with the hanging rod (614) through the cooperation of the docking post (648) on the micro motor (645) and the baking rod (617). A micro pump (12) is installed on the inner side of the lifting column (2). The end of the suction pipe (11) near the lifting column (2) is connected to the micro pump (12). The bottom end of the micro pump (12) is connected to a return pipe (13) for guiding the back-suctioned paint back and reusing it.

10. A spraying process for a pressure equalization shield as described in any one of claims 1 to 9, characterized in that, Includes the following steps: Step 1: Use the cross telescopic frame (9) and the large blade cylinder (10) to adjust the diameter of the ring structure formed by the base frame (3) and the enclosure (4) so ​​that the outer diameter of the ring structure is equal to the inner diameter of the pressure equalizing cover. Then, put the pressure equalizing cover on the ring structure and adjust the height of the lifting column (2) so that the pressure equalizing cover and the spraying assembly (62) are at the same height. Step 2: Simultaneously activate the spraying assembly (62) and the large turntable (8) to spray the pressure equalization hood clockwise. During the spraying process, the brush cylinder (65) is brought into contact with the surface of the pressure equalization hood by the synchronous extension of the dual-axis cylinder (612) and the telescopic rod (643). The brush cylinder (65) is used to evenly roll the paint on the surface of the pressure equalization hood. Step 3: After the paint on the surface of the pressure equalization cover is evenly brushed by the brush (65), the brush (65) is moved away from the ring structure by the synchronous retraction of the dual-axis cylinder (612) and the telescopic rod (643). Then, the third slide (641) is used to lower the brush (65) vertically and pull it off the baking rod (617). Then, the dual-axis cylinder (612) is used to bring the baking rod (617) close to the pressure equalization cover. The heating machine (613) is used to heat the baking rod (617). At the same time, the large turntable (8) is used to drive the pressure equalization cover to rotate clockwise. The paint on the pressure equalization cover is dried by the rotation of the baking rod (617), so that the paint can be quickly formed on the surface of the pressure equalization cover.

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