Anti-corrosion spraying equipment and method based on ship bottom plate

Abstract

The present invention discloses an anti-corrosion spraying device and method based on the bottom plate of a ship, comprising a rear gantry, a right-angle truss is fixed on one side outer wall of the rear gantry, and a front gantry parallel to the right-angle truss is arranged on one side of the right-angle truss, and a plurality of elastic adaptive plate support structures for assisting the horizontal movement of the bottom plate of the ship are installed on the opposite side outer walls of the right-angle truss and the front gantry; a feeding mechanism, the feeding mechanism is installed on the outer wall of one side of the front gantry close to the right-angle truss, and a lifting auxiliary feeding structure for pressing the bottom plate of the ship downward is installed on the outer wall of the front gantry above the feeding mechanism. The present invention utilizes a pulley-type bidirectional traction module and a spraying structure, and can spray the upper and lower surfaces of the bottom plate at the same time. Compared with the traditional single-sided spraying that needs to be processed separately, it greatly shortens the spraying cycle and saves labor costs.

Description

Technical Field

[0001] The invention relates to the technical field of ship bottom plate spraying, and in particular to an anti-corrosion spraying device and method based on a ship bottom plate. Background Art

[0002] The metal plates on the bottom of the ship need anti-corrosion spraying to extend their service life and enhance their durability. Corrosion in seawater and humid environments has a serious impact on metal structures, and anti-corrosion spraying equipment plays a key role in this. The equipment ensures the formation of a solid protective layer by cleaning the surface, evenly applying primer and anti-corrosion coating, and controlling the thickness and speed of spraying. Its structure includes a compressed air system, a spray gun, a paint delivery system and a control system. The support structure and the mobile device make it firmly fixed on the hull and easy to operate. The selected coatings such as epoxy resin and polyurethane have the characteristics of seawater resistance, wear resistance and excellent adhesion, which effectively protect the ship structure from erosion by the marine environment; such as the anti-corrosion spraying device for ship steel structure disclosed in the authorization announcement number CN212237878U, including two fixed rods and a fixed seat fixed on the ground, the top outer walls of the two fixed rods are fixed with a top plate, and the bottom outer wall of the top plate is fixed with an electric telescopic rod, and the bottom outer wall of the electric telescopic rod is fixed with a support plate, and a slide groove is opened on one side of the bottom outer wall of the support plate, and the inner wall of the slide groove is slidably connected with A slider, wherein a connecting plate is fixed on one side of the bottom outer wall of the slider and the bottom outer wall of the support plate, and the outer walls on the opposite sides of the two connecting plates are rotatably connected to a rotating shaft through a bearing, which can prevent the steel structure from falling off the clamping plate due to insufficient friction when spraying the steel structure, thereby affecting the spraying of the steel structure. However, this technical solution still requires single-sided spraying of the ship's bottom plate panels one by one during use, and the ship's bottom plate panels have a large area. The single-sided spraying method will result in a long operation time. For batch spraying of ship's bottom plate panels, the construction period is relatively long. Summary of the invention

[0003] The purpose of the present invention is to provide an anti-corrosion spraying equipment and method based on the bottom plate of a ship, in which the bottom plate panels to be sprayed are transported by a loading mechanism, a lifting auxiliary feeding structure and an elastic adaptive plate supporting structure until they move to the spraying area, and then a pulley-type bidirectional traction module is used to drive the two spraying structures at the upper and lower positions to move synchronously in opposite directions, so that the two spraying structures are used to synchronously complete the spraying treatment on the upper and lower surfaces of the bottom plate panels to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: an anti-corrosion spraying device based on the bottom plate of a ship, comprising:

[0005] A rear gantry, a right-angle truss is fixed on one outer wall of the rear gantry, and a front gantry parallel to the right-angle truss is arranged on one side of the rear gantry, and a plurality of elastic adaptive plate support structures for assisting the horizontal movement of the bottom plate of the ship are installed on the outer walls of the opposite sides of the right-angle truss and the front gantry;

[0006] A feeding mechanism, the feeding mechanism is installed on the outer wall of one side of the front gantry near the right-angle truss, and a lifting auxiliary feeding structure for pressing down the ship bottom plate is installed on the outer wall of the front gantry above the feeding mechanism;

[0007] A wheeled bidirectional traction module, wherein the wheeled bidirectional traction module is installed at the top of the rear gantry, the front and back of the rear gantry are fixed with guide rails, the ends of the two guide rails that are far away from each other are respectively slidably installed with a rear slide seat and a front slide seat, and the outer walls of the rear slide seat and the front slide seat that are close to each other are both installed with a Z-axis lifting unit, and the movable end of the Z-axis lifting unit is installed with a spraying structure, and the spraying ends of the two spraying structures are respectively located on the upper and lower sides of the ship bottom plate, and the wheeled bidirectional traction module is used to drive the two spraying structures to move synchronously toward each other;

[0008] The feeding mechanism is installed on an outer wall of one side of the front gantry, and the output end of the feeding mechanism is electrically connected to the input ends of the wheeled bidirectional traction module, the Z-axis lifting unit, the feeding mechanism, and the lifting auxiliary feeding structure.

[0009] Preferably, the lifting auxiliary feeding structure includes a sliding plate installed on a right-angle truss, a front gantry relative to the outer wall, a Z-axis cylinder installed on one side of the top of the front gantry, and a second pressure wheel rotatably installed on one side of the surface of the skateboard, and the bottom end of the piston rod of the Z-axis cylinder is fixedly connected to the top of the skateboard.

[0010] Preferably, a telescopic column is installed between the opposite outer walls of the two slides.

[0011] Preferably, the feeding mechanism includes a motor seat installed on an outer wall on one side of the front gantry, a stepper motor installed on an outer wall on one side of the motor seat, and a conveying wheel installed on the output end of the stepper motor through a coupling.

[0012] Preferably, the elastic adaptive plate supporting structure includes a right-angle seat fixed on the front gantry and the outer wall relative to the right-angle truss, a plurality of lower support wheels rotatably mounted on the surface of the right-angle seat, and a slider slidably mounted on the other end of the surface of the right-angle seat, a plurality of upper pressure wheels rotatably mounted on the surface of the slider, and an elastic support structure for forcing the slider to slide down is installed on the surface of the right-angle seat.

[0013] Preferably, the elastic support structure includes a double-hole plate seat fixed on the surface of the right-angle seat, a steel column slidably installed inside the double-hole plate seat, and two flat steel springs installed at the bottom end of the double-hole plate seat, and the bottom end of the steel column is fixedly connected to the top end of the slider.

[0014] Preferably, the spraying structure includes a support plate fixed at the bottom end of the piston rod of the Z-axis lifting unit, a material storage tube installed on the outer wall of one side of the support plate, solenoid valves installed at equal intervals on the outer wall of one side of the material storage tube, a nozzle installed at the liquid outlet end of the solenoid valve, and a paint spray head installed at the nozzle end of the nozzle away from the solenoid valve, and a pipe joint is installed at the end of the material storage tube away from the support plate.

[0015] Preferably, six solenoid valves are provided, and the input end of the solenoid valve is electrically connected to the output end of the PLC control panel.

[0016] Preferably, the pulley-type bidirectional traction module includes synchronous wheels symmetrically mounted on both sides of the top end of the rear gantry, a poly-V belt wrapped between the two synchronous wheels, and connecting blocks mounted at both ends of the poly-V belt for fixed connection with the rear slide and the front slide. A servo motor for driving one of the synchronous wheels to rotate is mounted on the outer wall of one side of the rear gantry.

[0017] The present invention also provides an anti-corrosion spraying method based on the bottom plate of a ship, such as the anti-corrosion spraying equipment based on the bottom plate of a ship as described above, comprising the following steps:

[0018] S01: Place the bottom plate workpiece to be sprayed with anti-corrosion paint on one side of the feeding mechanism, and feed one end of the bottom plate workpiece between the feeding mechanism and the lifting auxiliary feeding structure. Then the staff starts the feeding mechanism through the PLC control panel to work. The feeding mechanism and the lifting auxiliary feeding structure are jointly responsible for transporting the bottom plate parts to be processed from the storage area to the spraying area;

[0019] S102: The loading mechanism and the lifting auxiliary feeding structure convey the bottom plate to the elastic adaptive plate supporting structure. The elastic adaptive plate supporting structure is designed for the irregular shape and curved surface of the bottom plate, and is automatically adjusted and fixed according to the shape and size of the plate;

[0020] S103: When the bottom plate moves to the spraying area, the loading mechanism and the lifting auxiliary feeding structure stop working so that the bottom plate is suspended, and the wheeled bidirectional traction module pulls the two spraying structures to move synchronously toward each other along the guide rail and the length direction of the plate;

[0021] S104: When the spraying structure moves from one end to the other end, the spraying structure completes the spraying process on one side of the panel. At this time, the synchronous spraying process of the upper and lower surfaces of the bottom plate is completed, and the loading mechanism and the lifting auxiliary feeding structure send the sprayed panels to the outside of the elastic adaptive panel supporting structure and the equipment.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: the anti-corrosion spraying equipment and method based on the ship bottom plate is equipped with a pulley-type bidirectional traction module, a spraying structure, a feeding mechanism and other structures that cooperate with each other. By utilizing the pulley-type bidirectional traction module and the spraying structure, the upper and lower surfaces of the bottom plate can be sprayed at the same time. Compared with the traditional single-sided spraying that requires separate treatment, it greatly shortens the spraying cycle and saves labor costs. The bidirectional spraying technology formed by the upper and lower spraying structures can also more comprehensively cover every corner and small area of ​​the bottom plate by simultaneously treating the upper and lower surfaces, thereby ensuring the coverage rate and quality stability of the anti-corrosion coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 3 ;

[0026] Figure 4 It is a schematic diagram of the main structure of the present invention;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the spraying structure of the second embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the three-dimensional structure of the third embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the three-dimensional structure of the feeding mechanism of the third embodiment of the present invention;

[0030] Figure 8 For the present invention Figure 7 Enlarged structural diagram at A in the middle.

[0031] In the figure: 1. rear gantry; 2. guide rail; 3. rear slide; 4. front slide; 5. wheeled bidirectional traction module; 6. Z-axis lifting unit; 7. spraying structure; 701. support plate; 702. material storage tube; 703. pipe joint; 704. solenoid valve; 705. spray pipe; 706. spray head; 8. right-angle truss; 9. front gantry; 10. telescopic column; 11. elastic adaptive plate supporting structure; 1101. right-angle seat; 1102. lower support wheel; 1103. slider; 1104. elastic support structure; 1105. upper pressure wheel; 12. feeding mechanism; 1201. motor seat; 1202. stepping motor; 1203. conveying wheel; 13. lifting auxiliary feeding structure; 1301. Z-axis cylinder; 1302. slide plate; 1303. second pressure wheel; 14. PLC control panel. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1, by Figures 1 to 4 The present invention comprises a rear gantry 1, a right-angle truss 8 is fixed on one side outer wall of the rear gantry 1, and a front gantry 9 which is parallel to the right-angle truss 8 is arranged on one side of the rear gantry 1, and a plurality of elastic adaptive plate supporting structures 11 for assisting the horizontal movement of the bottom plate of the ship are installed on the opposite side outer walls of the right-angle truss 8 and the front gantry 9;

[0034] A feeding mechanism 12, the feeding mechanism 12 is installed on the outer wall of one side of the front gantry 9 close to the right-angle truss 8, and a lifting auxiliary feeding structure 13 for pressing down the bottom plate of the ship is installed on the outer wall of the front gantry 9 above the feeding mechanism 12;

[0035] A wheeled bidirectional traction module 5 is installed at the top of the rear gantry 1. The front and back of the rear gantry 1 are fixed with guide rails 2. The ends of the two guide rails 2 that are far away from each other are slidably installed with a rear slide 3 and a front slide 4. The outer walls of the rear slide 3 and the front slide 4 that are close to each other are both installed with a Z-axis lifting unit 6. The movable end of the Z-axis lifting unit 6 is installed with a spraying structure 7. The spraying ends of the two spraying structures 7 are respectively located on the upper and lower sides of the bottom plate of the ship. The wheeled bidirectional traction module 5 is used to drive the two spraying structures 7 to move synchronously toward each other.

[0036] A feeding mechanism 12, the feeding mechanism 12 is installed on one side outer wall of the front gantry 9, and the output end of the feeding mechanism 12 is electrically connected to the input end of the pulley-type bidirectional traction module 5, the Z-axis lifting unit 6, the feeding mechanism 12, and the lifting auxiliary feeding structure 13;

[0037] An anti-corrosion spraying method based on the bottom plate of a ship in this embodiment, such as the anti-corrosion spraying equipment based on the bottom plate of a ship, comprises the following steps:

[0038] S101: Place the bottom plate workpiece to be sprayed with anti-corrosion paint on one side of the feeding mechanism 12, and feed one end of the bottom plate workpiece between the feeding mechanism 12 and the lifting auxiliary feeding structure 13. Then the staff starts the feeding mechanism 12 through the PLC control panel 14 to work. The feeding mechanism 12 and the lifting auxiliary feeding structure 13 are jointly responsible for transporting the bottom plate to be processed from the storage area to the spraying area;

[0039] S102: The feeding mechanism 12 and the lifting auxiliary feeding structure 13 convey the bottom plate to the elastic adaptive plate supporting structure 11. The elastic adaptive plate supporting structure 11 is designed for the irregular shape and curved surface of the bottom plate, and is automatically adjusted and fixed according to the shape and size of the plate;

[0040] S103: When the bottom plate moves to the spraying area, the loading mechanism 12 and the lifting auxiliary feeding structure 13 stop working to make the bottom plate hover, and the wheeled bidirectional traction module 5 pulls the two spraying structures 7 to move synchronously toward each other along the guide rail 2 and the length direction of the plate;

[0041] S104: When the spraying structure 7 moves from one end to the other end, the spraying structure 7 completes the spraying treatment on one side of the panel. At this time, the synchronous spraying treatment of the upper and lower surfaces of the bottom plate is completed, and the loading mechanism 12 and the lifting auxiliary feeding structure 13 send the panels that have been sprayed to the elastic adaptive panel supporting structure 11 and the outside of the equipment.

[0042] Embodiment 2, based on embodiment 1, Figure 5The spraying structure 7 includes a support plate 701 fixed to the bottom end of the piston rod of the Z-axis lifting unit 6, a material storage tube 702 installed on the outer wall of one side of the support plate 701, an electromagnetic valve 704 installed at equal intervals on the outer wall of one side of the material storage tube 702, a nozzle 705 installed at the liquid outlet end of the electromagnetic valve 704, and a paint spray head 706 installed at the nozzle of the nozzle 705 away from the electromagnetic valve 704. A pipe joint 703 is installed at the end of the material storage tube 702 away from the support plate 701, and the electromagnetic valve 704 is provided with six. The input end is electrically connected to the output end of the PLC control panel 14. The staff connects the paint pumping end to the pipe joint 703 through a hose. When the paint pumping end actively supplies the paint, the paint is sent to the storage pipe 702 through the hose and the pipe joint 703. During this process, the staff selects the opening number of the solenoid valve 704 according to the paint spraying density and the paint spraying thickness. When the PLC control panel 14 controls the solenoid valve 704 to be in a normally open state, the paint is sprayed out through the nozzle 705 and the paint spraying head 706, thereby performing the spraying operation;

[0043] The pulley-type bidirectional traction module 5 includes synchronous wheels symmetrically mounted on both sides of the top of the rear gantry 1, a poly-V belt wound between the two synchronous wheels, and connecting blocks installed at both ends of the poly-V belt for fixed connection with the rear slide 3 and the front slide 4. A servo motor for driving one of the synchronous wheels to rotate is installed on the outer wall of one side of the rear gantry 1. The servo motor in the pulley-type bidirectional traction module 5 drives one of the synchronous wheels to rotate, and the synchronous wheels pull the rear slide 3 and the front slide 4 to slide toward each other through the poly-V belt, that is, the two spray structures 7 approach or move away from each other, and the spraying treatment will be completed on the surface of the plate during the movement of the spray structure 7. In this process, the guide rail 2 guides the sliding of the rear slide 3 and the front slide 4 to ensure the smooth sliding of the spray structure 7.

[0044] When the spraying structure 7 is performing the spraying operation, the staff turns on the Z-axis lifting unit 6 through the PLC control panel 14 to work, and uses the Z-axis lifting unit 6 to control the distance between the spraying structure 7 and the plate. If the spraying distance is too close, excessive deposition of the paint may occur, forming sagging or dripping; and if the distance is too far, uneven atomization of the paint may occur, affecting the adhesion and uniformity of the coating. Therefore, the Z-axis lifting unit 6 can be used to adjust the distance between the spray head and the plate according to the spraying material, spraying method and specific conditions of the plate to achieve the best spraying effect;

[0045] Embodiment 3, based on embodiment 2, Figure 6 , Figure 7 and Figure 8It is given that the lifting auxiliary feeding structure 13 includes a slide plate 1302 slidably installed on the right-angle truss 8, the front gantry 9 relative to the outer wall, a Z-axis cylinder 1301 installed on one side of the top of the front gantry 9, and a second pressing wheel 1303 rotatably installed on one side of the surface of the sliding plate 1302. The bottom end of the piston rod of the Z-axis cylinder 1301 is fixedly connected to the top of the sliding plate 1302. The staff puts the bottom plate workpiece to be processed between the conveying wheel 1203 and the second pressing wheel 1303. Then the staff starts the Z-axis cylinder 1301 through the PLC control panel 14 to work, and the Z-axis cylinder 1301 drives the sliding plate 1302 and the second pressing wheel 1303 to move downward until the second pressing wheel 1303 is pressed on the upper surface of the bottom plate workpiece. The lifting auxiliary feeding structure 13 can flexibly adjust the position of the second pressing wheel 1303 according to the thickness specification of the plate to ensure that the bottom plate workpiece is sprayed in an ideal working position.

[0046] A telescopic column 10 is installed between the opposite outer walls of the two slide plates 1302. When the staff transports the bottom plate workpiece according to its width, the staff can push the front gantry 9 toward the right-angle truss 8 to adjust the overall length of the telescopic column 10 and the angle between the two elastic adaptive plate supporting structures 11 in the Y-axis direction to ensure that the feeding mechanism 12, the lifting auxiliary feeding structure 13, and the elastic adaptive plate supporting structure 11 can stably carry and transport the bottom plate workpiece;

[0047] The feeding mechanism 12 includes a motor seat 1201 installed on the outer wall of one side of the front gantry 9, a stepper motor 1202 installed on the outer wall of one side of the motor seat 1201, and a conveying wheel 1203 installed at the output end of the stepper motor 1202 through a coupling. The staff turns on the stepper motor 1202 to work, and the stepper motor 1202 actively drives the conveying wheel 1203 to rotate, so as to transport the bottom plate to be processed from the storage area to the spraying area. In this process, the lifting auxiliary feeding structure 13 ensures that the plate remains stable during the conveying process, and the use of the feeding mechanism 12 can effectively reduce the time and labor intensity of manual operation;

[0048] The elastic adaptive plate supporting structure 11 includes a right-angle seat 1101 fixed on the front gantry 9 and the right-angle truss 8 relative to the outer wall, a plurality of lower support wheels 1102 rotatably mounted on the surface of the right-angle seat 1101, and a slider 1103 slidably mounted on the other end of the surface of the right-angle seat 1101. A plurality of upper pressure wheels 1105 are rotatably mounted on the surface of the slider 1103. An elastic supporting structure 1104 for forcing the slider 1103 to slide down is mounted on the surface of the right-angle seat 1101. When the bottom plate workpiece is being moved, the bottom plate workpiece will pass between the upper pressure wheel 1105 and the lower support wheel 1102. At this time, the upper pressure wheel 1105 and the slider 1103 will be forced to move upward, and the elastic supporting structure 1104 is in a compressed state, which can be automatically adjusted and fixed according to the thickness of the plate to ensure the stability and position accuracy of the plate during the spraying process.

[0049] The elastic support structure 1104 includes a double-hole plate seat fixed on the surface of the right-angle seat 1101, a steel column slidably installed inside the double-hole plate seat, and two flat steel springs installed at the bottom end of the double-hole plate seat, and the bottom end of the steel column is fixedly connected to the top end of the slider 1103;

[0050] When the elastic support structure 1104 is compressed, the slider 1103 drives the steel column to move upward, and the flat steel spring between the slider 1103 and the double-hole plate seat is compressed, so that the upper pressure wheel 1105 is firmly pressed on the upper surface of the plate.

[0051] When the embodiment of the present application is in use, the staff first places the bottom plate workpiece to be sprayed with anti-corrosion paint on one side of the feeding mechanism 12, and feeds one end of the bottom plate workpiece between the feeding mechanism 12 and the lifting auxiliary feeding structure 13. Then the staff turns on the feeding mechanism 12 through the PLC control panel 14 to work. The feeding mechanism 12 and the lifting auxiliary feeding structure 13 are jointly responsible for transporting the bottom plate panels to be processed from the storage area to the spraying area to ensure that the panels accurately reach the spraying position and provide accurate positioning for subsequent spraying operations. In this process, the lifting auxiliary feeding structure 13 can actively adjust the conveying thickness of the bottom plate panels on the basis of feeding to meet the spraying needs of ship bottom plate workpieces of different thickness specifications. The feeding mechanism 12 and the lifting auxiliary feeding structure 13 transport the bottom plate panels to the elastic adaptive plate supporting structure 11. The elastic adaptive plate supporting structure 11 is designed to cope with the irregular shape and curved surface of the bottom plate panels. It automatically adjusts and fixes according to the shape and size of the panels to ensure that the panels remain stable during the spraying process to avoid To avoid spraying quality problems caused by deformation or displacement of the panel, when the bottom plate is moved to the spraying area, the feeding mechanism 12 and the lifting auxiliary feeding structure 13 stop working to make the bottom plate hover, and then the staff connects the feeding end of the spraying structure 7 to the pumping end of the external anti-corrosion paint, and starts the pulley-type bidirectional traction module 5 through the PLC control panel 14 to work. The two spraying structures 7 located at the upper and lower positions of the bottom plate workpiece are respectively kept in a sliding connection state with the guide rail 2 through the rear slide 3 and the front slide 4, then the pulley-type The bidirectional traction module 5 pulls the two spraying structures 7 to move synchronously toward each other along the guide rail 2 and the length direction of the panel. The guide rail 2 plays a bearing and guiding role in the entire system. When the spraying structure 7 moves from one end to the other, the spraying structure 7 completes the spraying treatment on one side of the panel. At this time, the synchronous spraying treatment of the upper and lower surfaces of the bottom plate is completed. The loading mechanism 12 and the lifting auxiliary feeding structure 13 send the sprayed panels to the elastic adaptive panel supporting structure 11 and the outside of the equipment for processing in the next process.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-corrosion spraying equipment based on the bottom plate of a ship, characterized in that: include: A rear gantry (1), wherein a right-angle truss (8) is fixed on an outer wall of one side of the rear gantry (1), and a front gantry (9) parallel to the right-angle truss (8) is provided on one side of the right-angle truss (8), and a plurality of elastic adaptive plate support structures (11) for assisting the horizontal movement of the bottom plate of the ship are installed on the outer walls of the opposite sides of the right-angle truss (8) and the front gantry (9); A feeding mechanism (12), the feeding mechanism (12) being mounted on an outer wall of a side of the front gantry (9) close to the right-angle truss (8), and a lifting auxiliary feeding structure (13) for pressing down the bottom plate of the ship is mounted on the outer wall of the front gantry (9) above the feeding mechanism (12); A pulley-type bidirectional traction module (5), the pulley-type bidirectional traction module (5) being mounted on the top of a rear gantry (1), the front and back of the rear gantry (1) being fixed with guide rails (2), the ends of the two guide rails (2) being slidably mounted with a rear slide seat (3) and a front slide seat (4) respectively at ends away from each other, a Z-axis lifting unit (6) being mounted on the outer walls of the sides of the rear slide seat (3) and the front slide seat (4) being close to each other, a spraying structure (7) being mounted on the movable end of the Z-axis lifting unit (6), the spraying ends of the two spraying structures (7) being respectively located on the upper and lower sides of the bottom plate of the ship, and the pulley-type bidirectional traction module (5) being used to drive the two spraying structures (7) to move synchronously towards each other; A feeding mechanism (12), the feeding mechanism (12) being mounted on an outer wall of one side of the front gantry (9), the output end of the feeding mechanism (12) being electrically connected to the input ends of the pulley-type bidirectional traction module (5), the Z-axis lifting unit (6), the feeding mechanism (12), and the lifting auxiliary feeding structure (13); The spraying structure (7) comprises a support plate (701) fixed to the bottom end of the piston rod of the Z-axis lifting unit (6), a material storage tube (702) installed on the outer wall of one side of the support plate (701), solenoid valves (704) installed at equal intervals on the outer wall of one side of the material storage tube (702), a spray pipe (705) installed at the liquid outlet end of the solenoid valve (704), and a spray head (706) installed at the end of the spray pipe (705) away from the solenoid valve (704), and a pipe joint (703) is installed at one end of the material storage tube (702) away from the support plate (701); Six solenoid valves (704) are provided, and input ends of the solenoid valves (704) are electrically connected to output ends of the PLC control panel (14); The pulley-type bidirectional traction module (5) comprises synchronous wheels symmetrically mounted on both sides of the top end of the rear gantry (1) for rotation, a poly-V belt wound between the two synchronous wheels, and connecting blocks mounted at both ends of the poly-V belt for fixed connection with the rear slide (3) and the front slide (4), and a servo motor for driving one of the synchronous wheels to rotate is mounted on the outer wall of one side of the rear gantry (1).

2. The anti-corrosion spraying equipment based on the bottom plate of a ship according to claim 1 is characterized in that: The lifting auxiliary feeding structure (13) comprises a slide plate (1302) mounted on a right-angle truss (8) relative to the outer wall of the front gantry (9), a Z-axis cylinder (1301) mounted on one side of the top end of the front gantry (9), and a second pressure wheel (1303) mounted rotatably on one side of the surface of the slide plate (1302), wherein the bottom end of the piston rod of the Z-axis cylinder (1301) is fixedly connected to the top end of the slide plate (1302).

3. The anti-corrosion spraying equipment based on the bottom plate of a ship according to claim 2 is characterized in that: A telescopic column (10) is installed between the opposite outer walls of the two slide plates (1302).

4. The anti-corrosion spraying equipment based on the bottom plate of a ship according to claim 1 is characterized in that: The feeding mechanism (12) comprises a motor seat (1201) mounted on an outer wall of one side of the front gantry (9), a stepper motor (1202) mounted on an outer wall of one side of the motor seat (1201), and a conveying wheel (1203) mounted on the output end of the stepper motor (1202) via a coupling.

5. The anti-corrosion spraying equipment based on the bottom plate of a ship according to claim 1 is characterized in that: The elastic self-adaptive plate support structure (11) comprises a right-angle seat (1101) fixed on the front gantry (9) and the outer wall opposite to the right-angle truss (8), a plurality of lower support wheels (1102) rotatably mounted on the surface of the right-angle seat (1101), and a slider (1103) slidably mounted on the other end of the surface of the right-angle seat (1101), a plurality of upper pressure wheels (1105) rotatably mounted on the surface of the slider (1103), and an elastic support structure (1104) for forcing the slider (1103) to slide down is mounted on the surface of the right-angle seat (1101).

6. The anti-corrosion spraying equipment based on the bottom plate of a ship according to claim 5 is characterized in that: The elastic support structure (1104) comprises a double-hole plate seat fixed on the surface of the right-angle seat (1101), a steel column slidably mounted inside the double-hole plate seat, and two flat steel springs mounted at the bottom end of the double-hole plate seat, wherein the bottom end of the steel column is fixedly connected to the top end of the slider (1103).

7. An anti-corrosion spraying method based on a ship bottom plate, comprising the anti-corrosion spraying equipment based on a ship bottom plate as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: S101: placing a base plate workpiece to be sprayed with anti-corrosion paint on one side of a loading mechanism (12), and feeding one end of the base plate workpiece between the loading mechanism (12) and the lifting auxiliary feeding structure (13), and then the staff starts the loading mechanism (12) through the PLC control panel (14) to work, and the loading mechanism (12) and the lifting auxiliary feeding structure (13) are jointly responsible for transporting the base plate workpiece to be processed from the storage area to the spraying area; S102: The loading mechanism (12) and the lifting auxiliary feeding structure (13) transport the bottom plate to the elastic adaptive plate supporting structure (11). The elastic adaptive plate supporting structure (11) is designed to be suitable for the irregular shape and curved surface of the bottom plate, and is automatically adjusted and fixed according to the shape and size of the plate; S103: When the bottom plate moves to the spraying area, the loading mechanism (12) and the lifting auxiliary feeding structure (13) stop working so that the bottom plate is suspended, and the wheeled bidirectional traction module (5) pulls the two spraying structures (7) along the guide rail (2) and the length direction of the plate to move synchronously towards each other; S104: When the spraying structure (7) moves from one end to the other end, the spraying structure (7) completes the spraying process on one side of the plate. At this time, the synchronous spraying process on the upper and lower surfaces of the bottom plate is completed. The loading mechanism (12) and the lifting auxiliary feeding structure (13) deliver the sprayed plate to the elastic adaptive plate supporting structure (11) and the outside of the equipment.

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