Tarpaulin surface coating device and coating method thereof

Abstract

The tarpaulin surface coating device comprises a bottom plate, a traction mechanism is arranged on the upper end face of the bottom plate, a supporting frame, a supporting plate and a mounting plate are fixedly mounted on the upper end face of the bottom plate, a plurality of guide rollers are rotatably mounted in the supporting frame, and a deviation rectifying mechanism is arranged in the supporting frame; the traction mechanism comprises a moving assembly and a clamping assembly, and the deviation rectifying mechanism comprises a monitoring assembly and an adjusting assembly. By arranging the monitoring assembly and the adjusting assembly, the deviation condition of the tarpaulin in the traction process can be monitored in real time, automatic deviation correction can be conducted in time, a pointer sensor can accurately capture the position change of the edge of the tarpaulin, and once deviation occurs, a PLC can rapidly control a corresponding air pump to inflate a deviation correction air bag, so that the deviation correction efficiency is improved. And the deviation rectifying roller adjusts the angle to apply lateral force to the tarpaulin, so that the problems of non-uniform coating, missed coating and the like caused by the deviation of the tarpaulin are effectively avoided, the consistency of the performance of each region of the tarpaulin is ensured, and the product quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tarpaulin processing, in particular to a tarpaulin surface coating device and a coating method thereof. Background Art

[0002] Tarpaulin is a waterproof material with high strength, good toughness and softness, commonly used for covering, sheltering or making tents.

[0003] During the production and processing of tarpaulins, in order to improve the performance of tarpaulins, such as waterproofing, sun protection, and wear resistance, it is usually necessary to coat the surface of the tarpaulins. At present, when the existing tarpaulin surface coating device is pulling the tarpaulin, the tarpaulin is prone to deviation. When the tarpaulin is deflected, the paint sprayed by the coating mechanism will deviate from the preset coating area, causing the tarpaulin to miss coating. As a result, the performance of different areas of the tarpaulin will vary greatly, and it is impossible to meet uniform quality standards. For tarpaulins that need to have good waterproof performance, areas that are missed or coated too thinly are prone to water seepage during use, thereby affecting product quality. Therefore, it is necessary to design a tarpaulin surface coating device and a coating method thereof to address the above problems. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the shortcomings of the existing technology, the present invention provides a tarpaulin surface coating device and a coating method thereof, which solves the problem that the tarpaulin is easily offset when the existing tarpaulin surface coating device is used to pull the tarpaulin, resulting in uneven coating and affecting product quality.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a tarpaulin surface coating device and coating method thereof, comprising a base plate, a traction mechanism being provided on the upper end surface of the base plate, a support frame, a support plate, and a mounting plate being fixedly mounted on the upper end surface of the base plate, a plurality of guide rollers being rotatably mounted inside the support frame, and a deviation correction mechanism being provided inside the support frame;

[0008] The traction mechanism includes a moving component and a clamping component;

[0009] The deviation correction mechanism includes a monitoring component and an adjustment component.

[0010] As a further solution of the present invention, the moving component includes a connecting frame fixedly installed on the upper end surface of the base plate, a screw is rotatably installed inside the connecting frame, a first motor connected to the screw is fixedly installed on the outer wall of the connecting frame, a moving block is rotatably installed on the outer wall of the screw, a limiting rod is fixedly installed inside the connecting frame, the limiting rod slides through the moving block, and a connecting rod is fixedly installed on the outer wall of the moving block.

[0011] As a further solution of the present invention, the clamping assembly includes a clamping frame fixedly installed on the end of the connecting rod, a hydraulic cylinder is fixedly installed on the top wall of the clamping frame, a clamping plate is fixedly installed on the telescopic end of the hydraulic cylinder, and anti-slip pads are fixedly installed on the bottom wall of the clamping frame and the bottom wall of the clamping plate.

[0012] As a further solution of the present invention, the monitoring assembly includes fixing plates fixedly mounted on the inner walls of both sides of the support frame, and pointer sensors are fixedly mounted on the upper surfaces of the two fixing plates.

[0013] As a further solution of the present invention, the adjustment component includes a connecting frame fixedly installed on the inner bottom wall of the support frame, an adjustment plate is rotatably installed inside the connecting frame, a correction roller is rotatably installed on the end of the adjustment plate through the adjustment frame, two correction airbags and two air pumps are fixedly installed on the inner bottom wall of the support frame, the telescopic ends of the two correction airbags are fixedly connected to the outer bottom wall of the adjustment frame, and the two air pump outlet pipes extend to the inside of the correction airbag on the same side respectively.

[0014] As a further solution of the present invention, the bottom of the support plate is fixedly connected to a fixed block through an electric push rod, the upper end surface of the fixed block is fixedly installed with a stabilizing rod, the stabilizing rod slides through the support plate, the end of the fixed block is fixedly installed with a mounting frame, the outer walls on both sides of the mounting frame are fixedly installed with shaft sleeves through mounting openings, and a spray pipe is installed inside the two shaft sleeves for common rotation, a plurality of fan-shaped nozzles communicating with the interior are fixedly installed on the outer wall of the spray pipe, two connecting pipes communicating with the interior are fixedly installed on the outer wall of the spray pipe, and a second motor is fixedly installed on the outer wall of the mounting frame. Gears are fixedly installed on the output shaft of the second motor and the outer wall of the spray pipe, and the two gears are meshed with each other. A spray pump is fixedly installed on the upper end face of the support plate, and a U-shaped tube is fixedly installed on the outer wall of the spray pump outlet pipe. Telescopic hoses are fixedly installed on the outer walls of both ends of the U-shaped tube, and the inner walls of the two telescopic hoses are fixedly connected to the outer walls of the corresponding connecting pipes respectively. A hot air blower and a cold air blower are fixedly installed on the upper end face of the support plate, and a blowing pipe is fixedly installed on the outer walls of the hot air blower and the cold air blower outlet pipes, and a blowing nozzle connected to the interior is fixedly installed on the outer walls of the two blowing pipes.

[0015] As a further solution of the present invention, a winding fork is rotatably mounted on the inner wall of the mounting plate, and a third motor connected to the rotating shaft of the winding fork is fixedly mounted on the outer wall of the mounting plate.

[0016] As a further solution of the present invention, a PLC controller is fixedly installed on the outer wall of the support frame, and the PLC controller is electrically connected to the first motor, the hydraulic cylinder, two pointer sensors, two air pumps, the electric push rod, the second motor, the spray pump, the hot air blower, the cold air blower and the third motor.

[0017] A coating method for a tarpaulin surface coating device, the method comprising the following steps:

[0018] S1. Tarpaulin fixing: Place one end of the tarpaulin into the clamping frame and use the hydraulic cylinder to drive the clamping plate to clamp and fix it.

[0019] S2. Tarpaulin traction and deviation correction adjustment: Start the first motor, drive the moving block to move through the screw to realize tarpaulin transportation, the pointer sensor monitors the deviation, and the PLC controller controls the corresponding air pump to inflate the tarpaulin so that the deviation correction roller adjusts the tarpaulin position.

[0020] S3. Coating parameter adjustment: When the tarpaulin is under the spray tube, the electric push rod adjusts the height of the spray tube, and the second motor adjusts the angle of the fan-shaped nozzle through the gear.

[0021] S4. Tarpaulin surface coating: Start the spray pump, the paint enters the spray pipe through the U-shaped tube, telescopic hose, etc., and is sprayed on the tarpaulin surface by the fan-shaped nozzle.

[0022] S5. Drying and shaping after coating: The tarpaulin is dried with hot air from a hot air blower and then cooled and shaped with cold air from a cold air blower.

[0023] S6. Finished product winding and collection: The processed tarpaulin is wound by the winding fork. After completion, the equipment is closed and the finished product is taken out.

[0024] (3) Beneficial effects

[0025] Compared with the prior art, the present invention provides a tarpaulin surface coating device and coating method thereof, which have the following beneficial effects:

[0026] The present invention is capable of monitoring the deviation of the tarpaulin during the traction process in real time and performing automatic deviation correction in a timely manner by setting a monitoring component and an adjustment component. The pointer sensor can accurately capture the position change of the edge of the tarpaulin. Once deviation occurs, the PLC controller can quickly control the corresponding air pump to inflate the deviation correction airbag, so that the deviation correction roller adjusts the angle to apply lateral force to the tarpaulin, effectively avoiding problems such as uneven coating and missing coating caused by the deviation of the tarpaulin, ensuring the consistency of performance of various areas of the tarpaulin, and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a tarpaulin surface coating device and coating method proposed by the present invention;

[0028] Figure 2 for Figure 1 Schematic diagram of the vertical cross-section structure;

[0029] Figure 3 This is a side structural schematic diagram of a tarpaulin surface coating device and coating method proposed by the present invention;

[0030] Figure 4for Figure 3 Schematic diagram of the vertical cross-section structure;

[0031] Figure 5 This is a schematic top view of a tarpaulin surface coating device and coating method proposed by the present invention;

[0032] Figure 6 for Figure 1 A schematic diagram of the structure enlargement at point A;

[0033] Figure 7 for Figure 2 A magnified schematic diagram of the structure at point B in FIG;

[0034] Figure 8 for Figure 3 A magnified schematic diagram of the structure at position C in FIG;

[0035] Figure 9 for Figure 3 A magnified schematic diagram of the structure at D in FIG.

[0036] Figure 10 for Figure 5 Schematic diagram of the enlarged structure at E in FIG.

[0037] In the picture:

[0038] 1. Bottom plate; 2. Traction mechanism; 21. Moving assembly; 22. Clamping assembly; 211. Connecting frame; 212. Screw; 213. First motor; 214. Moving block; 215. Limiting rod; 216. Connecting rod; 221. Clamping frame; 222. Hydraulic cylinder; 223. Clamping plate; 224. Anti-slip pad; 3. Support frame; 4. Support plate; 5. Mounting plate; 6. Guide roller; 7. Correction mechanism; 71. Monitoring assembly; 72. Adjustment assembly; 711. Fixing plate; 712. Pointer sensor; 721. Connecting frame; 7 22. Adjustment plate; 723. Adjustment frame; 724. Correction roller; 725. Correction airbag; 726. Air pump; 8. Electric push rod; 9. Fixed block; 10. Stabilizer bar; 11. Mounting frame; 12. Bushing; 13. Spray pipe; 14. Fan nozzle; 15. Connecting pipe; 16. Second motor; 17. Gear; 18. Spray pump; 19. U-shaped tube; 20. Telescopic hose; 23. Hot air blower; 24. Cold air blower; 25. Blowing pipe; 26. Blowing nozzle; 27. Winding fork; 28. Third motor; 29. ​​PLC controller. DETAILED DESCRIPTION

[0039] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0040] The present invention provides a technical solution for a tarpaulin surface coating device and a coating method thereof:

[0041] See also Figures 1 to 10 , a tarpaulin surface coating device and coating method thereof, including a base plate 1, the base plate 1 serves as the basic bearing component of the entire device, provides a stable installation platform for all the mechanisms and components above, and ensures that the device will not shake or displace during operation. A traction mechanism 2 is provided on the upper end surface of the base plate 1, which is used to drive the tarpaulin to move and transport. A support frame 3, a support plate 4 and a mounting plate 5 are fixedly installed on the upper end surface of the base plate 1. The support frame 3 mainly supports and guides the transportation of the tarpaulin. The support plate 4 is used to install coating and drying related components, and the mounting plate 5 provides an installation basis for the winding of the tarpaulin. A plurality of guide rollers 6 are rotatably installed inside the support frame 3. The guide rollers 6 can rotate with the movement of the tarpaulin, reducing the friction between the tarpaulin and the support frame 3, so that the tarpaulin is transported more smoothly. A correction mechanism 7 is provided inside the support frame 3 to correct the deviation of the tarpaulin during the transportation process;

[0042] The traction mechanism 2 includes a moving component 21 and a clamping component 22. The moving component 21 provides power to drive the clamping component 22 to move, and the clamping component 22 is responsible for clamping and fixing the tarpaulin.

[0043] The deviation-correcting mechanism 7 includes a monitoring component 71 and an adjusting component 72 . The monitoring component 71 is used to monitor whether the tarpaulin is deflected, and the adjusting component 72 is used to adjust the position of the tarpaulin when the tarpaulin is deflected.

[0044] The moving assembly 21 includes a connecting frame 211 fixedly mounted on the upper end surface of the base plate 1, the connecting frame 211 provides installation space and support for other components of the moving assembly 21, a screw 212 is rotatably mounted inside the connecting frame 211, a first motor 213 connected to the screw 212 is fixedly mounted on the outer wall of the connecting frame 211, the first motor 213 serves as a power source and can drive the screw 212 to rotate, and a moving block 214 is rotatably mounted on the outer wall of the screw 212 through a thread. When the screw 212 rotates, the moving assembly 211 is rotated. The block 214 can move along the length direction of the screw rod 212 under the action of the thread. A limiting rod 215 is fixedly installed inside the connecting frame 211. The limiting rod 215 slides through the moving block 214. The limiting rod 215 can limit the rotation of the moving block 214 so that the moving block 214 can only move along a straight line. A connecting rod 216 is fixedly installed on the outer wall of the moving block 214. The connecting rod 216 is used to connect the moving block 214 and the clamping assembly 22, and transmit the movement of the moving block 214 to the clamping assembly 22.

[0045] The clamping assembly 22 includes a clamping frame 221 fixedly mounted on the end of the connecting rod 216. The clamping frame 221 provides an installation carrier for other components of the clamping assembly 22. A hydraulic cylinder 222 is fixedly mounted on the inner top wall of the clamping frame 221. The hydraulic cylinder 222 serves as a clamping power source. A clamping plate 223 is fixedly mounted on its telescopic end. The clamping plate 223 can be driven up and down by the telescopic movement of the hydraulic cylinder 222. Anti-slip pads 224 are fixedly mounted on the inner bottom wall of the clamping frame 221 and the bottom wall of the clamping plate 223. The anti-slip pads 224 are made of anti-slip materials such as rubber, which can increase the friction between the tarpaulin and the tarpaulin to prevent the tarpaulin from slipping during the clamping and transportation process.

[0046] The monitoring component 71 includes a fixing plate 711 fixedly mounted on the inner walls on both sides of the support frame 3. The fixing plate 711 provides an installation position for the pointer sensor 712. The upper end surfaces of the two fixing plates 711 are fixedly mounted with a pointer sensor 712. The pointer sensor 712 can monitor the position of the edges of both sides of the tarpaulin in real time, and can send a signal in time if the tarpaulin is offset.

[0047] The adjusting assembly 72 includes a connecting frame 721 fixedly mounted on the inner bottom wall of the support frame 3. The connecting frame 721 provides a support point for the rotation of the adjusting plate 722. The adjusting plate 722 is rotatably mounted inside the connecting frame 721. The end of the adjusting plate 722 is rotatably mounted with a correcting roller 724 through the adjusting frame 723. The correcting roller 724 contacts the tarpaulin and can adjust the angle under the drive of the adjusting plate 722 and the adjusting frame 723, applying lateral force to the tarpaulin to correct the deviation. Two correcting airbags 725 and two air pumps 726 are fixedly mounted on the inner bottom wall of the support frame 3. The telescopic ends of the two correcting airbags 725 are fixedly connected to the outer bottom wall of the adjusting frame 723. The outlet pipes of the two air pumps 726 extend to the inside of the correcting airbags 725 on the same side respectively. The air pump 726 can inflate or exhaust the correcting airbags 725 to make the correcting airbags 725 expand and contract, thereby driving the adjusting frame 723 and the correcting roller 724 to move.

[0048] The bottom of the support plate 4 is fixedly connected to a fixed block 9 through an electric push rod 8. The electric push rod 8 can drive the fixed block 9 to move up and down through telescoping. A stabilizing rod 10 is fixedly installed on the upper end surface of the fixed block 9. The stabilizing rod 10 slides through the support plate 4. The stabilizing rod 10 can enhance the stability of the fixed block 9 when it moves and prevent the fixed block 9 from shaking. A mounting frame 11 is fixedly installed on the end of the fixed block 9. The mounting frame 11 provides installation space for spray-related components. The outer walls on both sides of the mounting frame 11 are fixedly installed with shaft sleeves 12 through the mounting openings. The two shaft sleeves 12 rotate together inside. A spray pipe 13 is installed on the outer wall of the spray pipe 13, and the shaft sleeve 12 provides support for the rotation of the spray pipe 13 so that the spray pipe 13 can rotate flexibly. A plurality of fan-shaped nozzles 14 communicating with the interior are fixedly installed on the outer wall of the spray pipe 13. The fan-shaped nozzles 14 can spray the paint in the form of a fan-shaped spray, so that the paint is more evenly covered on the surface of the tarpaulin. Two connecting pipes 15 communicating with the interior are fixedly installed on the outer wall of the spray pipe 13. The connecting pipe 15 is used to transport the paint to the spray pipe 13. A second motor 16 is fixedly installed on the outer wall of the mounting frame 11. The output shaft of the second motor 16 Gears 17 are fixedly mounted on the outer wall of the spray pipe 13, and the two gears 17 are meshed with each other. When the second motor 16 rotates, the spray pipe 13 can be driven to rotate by the two meshing gears 17, thereby adjusting the spraying angle of the fan-shaped nozzle 14. A spray pump 18 is fixedly mounted on the upper end surface of the support plate 4. The spray pump 18 provides power for the delivery of the paint. A U-shaped tube 19 is fixedly mounted on the outer wall of the outlet pipe of the spray pump 18. The outer walls of both ends of the U-shaped tube 19 are fixedly mounted with telescopic hoses 20. The inner walls of the two telescopic hoses 20 are respectively connected to the corresponding connecting pipes 1. 5 outer wall is fixedly connected, the telescopic hose 20 can be extended and retracted as the spray pipe 13 moves to ensure the continuity of paint delivery, the upper end surface of the support plate 4 is fixedly mounted with a hot air blower 23 and a cold air blower 24, the hot air blower 23 can generate hot air, and the cold air blower 24 can generate cold air, the hot air blower 23 and the cold air blower 24 outlet pipe outer wall are fixedly mounted with a blowing pipe 25, the outer wall of the two blowing pipes 25 are fixedly mounted with a blowing nozzle 26 connected to the inside, the blowing nozzle 26 can blow hot air or cold air evenly to the surface of the tarpaulin to achieve drying and cooling of the paint.

[0049] A winding fork 27 is rotatably mounted on the inner wall of the mounting plate 5 , and the winding fork 27 is used to wind the processed tarpaulin. A third motor 28 connected to the rotating shaft of the winding fork 27 is fixedly mounted on the outer wall of the mounting plate 5 , and the third motor 28 provides power for the rotation of the winding fork 27 .

[0050] A PLC controller 29 is fixedly installed on the outer wall of the support frame 3. The PLC controller 29 is electrically connected to the first motor 213, the hydraulic cylinder 222, the two pointer sensors 712, the two air pumps 726, the electric push rod 8, the second motor 16, the spray pump 18, the hot air blower 23, the cold air blower 24 and the third motor 28. The PLC controller 29 serves as the control core of the entire device. It can receive signals from various sensors and control the operation of each execution component according to a preset program to realize the automatic operation of the device.

[0051] A coating method for a tarpaulin surface coating device, the method comprising the following steps:

[0052] S1. Tarpaulin fixing: Place one end of the tarpaulin into the clamping frame 221, ensuring that the edges of the tarpaulin are aligned. The hydraulic cylinder 222 is activated by the PLC controller 29. The telescopic end of the hydraulic cylinder 222 extends, driving the clamping plate 223 to move downward until the clamping plate 223 and the anti-slip pad 224 on the bottom wall of the clamping frame 221 tightly clamp the tarpaulin.

[0053] S2. Tarpaulin traction and correction adjustment: Under the continuous drive of the first motor 213, the screw 212 drives the moving block 214 to continue moving, realizing stable conveying of the tarpaulin. At the same time, the two pointer sensors 712 in the support frame 3 monitor the edge positions of the tarpaulin on both sides in real time. When the tarpaulin deviates and one edge deviates from the monitoring range of the pointer sensor 712, the pointer sensor 712 transmits the deviation signal to the PLC controller 29. The PLC controller 29 controls the air pump 726 on the corresponding side to start according to the deviation direction. The air pump 726 inflates the correction airbag 725. The correction airbag 725 expands and pushes the adjustment frame 723, causing the adjustment plate 722 to rotate in the connecting frame 721, thereby driving the correction roller 724 to adjust the angle, exerting corresponding lateral force on the tarpaulin, and adjusting the tarpaulin to the correct conveying trajectory. After the tarpaulin position returns to normal, the PLC controller 29 controls the air pump 726 to stop working.

[0054] S3. Coating parameter adjustment: When the tarpaulin is conveyed to the bottom of the spraying tube 13, the electric push rod 8 is controlled by the PLC controller 29 to extend and retract. The electric push rod 8 drives the fixed block 9 to move up and down. The fixed block 9 drives the spraying tube 13 to move synchronously through the mounting frame 11, and adjusts the distance between the spraying tube 13 and the tarpaulin surface until the optimal spraying distance is reached. The stabilizing bar 10 moves synchronously with the fixed block 9 to ensure the stability of the adjustment process. At the same time, the second motor 16 is started, and the gear 17 on the output shaft of the second motor 16 drives the gear 17 on the outer wall of the spraying tube 13 to rotate, so that the spraying tube 13 rotates in the shaft sleeve 12, thereby adjusting the spraying angle of the fan-shaped nozzle 14 to ensure that the paint can evenly cover the tarpaulin surface.

[0055] S4. Tarpaulin surface coating: After the coating parameters are adjusted, the spray pump 18 is started through the PLC controller 29. The spray pump 18 extracts the paint from the paint source and transports it to the U-shaped tube 19 through the outlet pipe. The paint is diverted by the U-shaped tube 19 and enters the two telescopic hoses 20. Then, it enters the spray pipe 13 through the connecting pipe 15. Finally, it is evenly sprayed on the moving tarpaulin surface in the form of a fan-shaped spray through multiple fan-shaped nozzles 14, realizing the continuous coating operation of the tarpaulin.

[0056] S5. Drying and shaping after coating: The tarpaulin after spraying continues to be transported forward. When passing the position corresponding to the hot air blower 23, the PLC controller 29 starts the hot air blower 23. The hot air generated by the hot air blower 23 enters the blowing pipe 25 through the outlet pipe, and then is evenly blown to the paint on the surface of the tarpaulin through multiple blowing nozzles 26 on the blowing pipe 25, so as to quickly dry the paint and accelerate the curing of the paint. Subsequently, the tarpaulin moves to the position corresponding to the cold air blower 24. The PLC controller 29 starts the cold air blower 24. The cold air generated by the cold air blower 24 enters another blowing pipe 25 through the outlet pipe, and then is blown to the surface of the tarpaulin through the corresponding blowing nozzle 26, so as to cool and shape the dried paint, so that the paint is firmly bonded to the surface of the tarpaulin, and avoid the paint from falling off or deforming during subsequent processing.

[0057] S6. Finished product winding and collection: The dried and shaped tarpaulin is continuously transported to the winding fork 27. Driven by the third motor 28, the winding fork 27 rotates continuously and neatly winds the processed tarpaulin on the winding fork 27. When a roll of tarpaulin is completely processed, the PLC controller 29 shuts down all running motors, pumps and equipment, controls the hydraulic cylinder 222 to retract, drives the clamping plate 223 to move upward, loosens the clamping of the tarpaulin, and then removes the wound tarpaulin from the winding fork 27, completing the tarpaulin surface coating operation.

[0058] When used specifically, the working principle of the present invention is as follows:

[0059] One end of the tarpaulin to be sprayed can be placed inside the clamping frame 221, and the hydraulic cylinder 222 can be started by the PLC controller 29. The telescopic end of the hydraulic cylinder 222 pushes the clamping plate 223 to move downward, so that the clamping plate 223 and the anti-slip pad 224 on the bottom wall of the clamping frame 221 are tightly attached to the tarpaulin, thereby achieving a stable clamping of one end of the tarpaulin. The first motor 213 is started, and the first motor 213 drives the screw 212 to rotate in the connecting frame 211. Under the constraint of the limit rod 215, the moving block 214 moves axially along the screw 212, and drives the clamping frame 221 through the connecting rod 216. The tarpaulin moves, thereby pulling the tarpaulin to be transported smoothly on the guide roller 6. During the transportation process, the pointer sensor 712 in the support frame 3 monitors the edge position of the tarpaulin in real time. If the tarpaulin deviates, the pointer sensor 712 transmits a signal to the PLC controller 29. The PLC controller 29 controls the air pump 726 on the corresponding side to inflate the deviation-correcting airbag 725. The deviation-correcting airbag 725 expands and pushes the adjustment frame 723, causing the adjustment plate 722 to rotate in the connecting frame 721, thereby driving the deviation-correcting roller 724 to adjust the angle, applying lateral force to the tarpaulin to correct the deviation, and ensuring that the tarpaulin is transported along the preset track.

[0060] When the tarpaulin is conveyed to the bottom of the spraying pipe 13, the PLC controller 29 starts the electric push rod 8, which telescopes and drives the fixed block 9 to move up and down, and the stabilizing bar 10 slides synchronously with the fixed block 9 to ensure stability, thereby adjusting the distance between the spraying pipe 13 and the surface of the tarpaulin, and at the same time starting the second motor 16. The gear 17 on the output shaft of the second motor 16 drives the gear 17 on the outer wall of the spraying pipe 13 to rotate, so that the spraying pipe 13 rotates in the shaft sleeve 12, and adjusts the spraying angle of the fan-shaped nozzle 14 to meet the coating requirements of tarpaulins of different specifications. After the parameters are adjusted, the PLC controller 29 starts the spraying pump 18, and the spraying pump 18 transports the paint through the outlet pipe to the U-shaped pipe 19, and the paint is diverted to the two telescopic hoses 20 through the U-shaped pipe 19, and then enters the spraying pipe 13 through the connecting pipe 15, and finally is evenly sprayed on the surface of the tarpaulin through multiple fan-shaped nozzles 14;

[0061] The coated tarpaulin continues to be transported, first passing under the hot air blower 23, and the hot air generated by the hot air blower 23 is blown to the surface of the tarpaulin through the blowing pipe 25 and the blowing nozzle 26 to dry the paint and accelerate the curing of the paint. Then the tarpaulin moves to the bottom of the cold air blower 24, and the cold air generated by the cold air blower 24 cools and shapes the dried paint through the blowing pipe 25 and the blowing nozzle 26, thereby enhancing the bonding force between the paint and the tarpaulin. When the towed part of the tarpaulin is coated, the hydraulic cylinder 222 can drive the clamping plate 223 to move upward to release the clamping of the tarpaulin, and then one end of the tarpaulin can be placed inside the winding fork 27, and the third motor 28 is controlled by the PLC controller 29 to continue to operate. The winding fork 27 continues to rotate under the drive of the third motor 28. The tarpaulin that has been coated, dried and shaped is neatly wound on itself. During the winding process, since the tarpaulin is no longer pulled by the clamping frame 221, it only relies on the pulling force of the winding fork 27 to move. At this time, the guide roller 6 still supports and guides the tarpaulin to ensure that the tarpaulin remains stable during winding. After the entire roll of tarpaulin is completely wound, the third motor 28 is turned off and the wound tarpaulin is removed from the winding fork 27. After that, the PLC controller 29 controls the reset of each component, such as the electric push rod 8 drives the spray pipe 13 to return to the initial height, the second motor 16 drives the fan-shaped nozzle 14 to reset, and the air pump 726 discharges the gas in the correction airbag 725 to restore the correction roller 724 to its original position, etc., to prepare for the next tarpaulin coating operation.

[0062] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all included in the scope of protection of the present invention.

Claims

1. A tarpaulin surface coating device, comprising a base plate (1), a traction mechanism (2) being provided on the upper end surface of the base plate (1), a support frame (3), a support plate (4) and a mounting plate (5) being fixedly mounted on the upper end surface of the base plate (1), a plurality of guide rollers (6) being rotatably mounted inside the support frame (3), and a deviation correction mechanism (7) being provided inside the support frame (3); The traction mechanism (2) comprises a moving component (21) and a clamping component (22); The deviation-correcting mechanism (7) comprises a monitoring component (71) and an adjusting component (72).

2. The tarpaulin surface coating device according to claim 1, characterized in that: The moving assembly (21) comprises a connecting frame (211) fixedly mounted on the upper end surface of the base plate (1); a screw rod (212) is rotatably mounted inside the connecting frame (211); a first motor (213) connected to the screw rod (212) is fixedly mounted on the outer wall of the connecting frame (211); a moving block (214) is rotatably mounted on the outer wall of the screw rod (212); a limiting rod (215) is fixedly mounted inside the connecting frame (211); the limiting rod (215) slides through the moving block (214); and a connecting rod (216) is fixedly mounted on the outer wall of the moving block (214).

3. The tarpaulin surface coating device according to claim 2, characterized in that: The clamping assembly (22) comprises a clamping frame (221) fixedly mounted on the end of a connecting rod (216); a hydraulic cylinder (222) is fixedly mounted on the inner top wall of the clamping frame (221); a clamping plate (223) is fixedly mounted on the telescopic end of the hydraulic cylinder (222); and anti-slip pads (224) are fixedly mounted on the inner bottom wall of the clamping frame (221) and the bottom wall of the clamping plate (223).

4. The tarpaulin surface coating device according to claim 1, characterized in that: The monitoring assembly (71) comprises fixed plates (711) fixedly mounted on the inner walls of both sides of the support frame (3), and pointer sensors (712) are fixedly mounted on the upper end surfaces of the two fixed plates (711).

5. The tarpaulin surface coating device and coating method according to claim 4, characterized in that: The adjustment assembly (72) comprises a connecting frame (721) fixedly mounted on the inner bottom wall of the support frame (3); an adjustment plate (722) is rotatably mounted inside the connecting frame (721); a correction roller (724) is rotatably mounted on the end of the adjustment plate (722) via the adjustment frame (723); two correction air bags (725) and two air pumps (726) are fixedly mounted on the inner bottom wall of the support frame (3); the telescopic ends of the two correction air bags (725) are fixedly connected to the outer bottom wall of the adjustment frame (723); and the outlet pipes of the two air pumps (726) respectively extend to the interior of the correction air bags (725) on the same side.

6. The tarpaulin surface coating device according to claim 1, characterized in that: The bottom of the support plate (4) is fixedly connected to a fixed block (9) through an electric push rod (8), and a stabilizing rod (10) is fixedly installed on the upper end surface of the fixed block (9), and the stabilizing rod (10) slides through the support plate (4). The end of the fixed block (9) is fixedly installed with a mounting frame (11), and the outer walls of both sides of the mounting frame (11) are fixedly installed with shaft sleeves (12) through mounting openings. A spray pipe (13) is installed inside the two shaft sleeves (12) for common rotation. A plurality of fan-shaped nozzles (14) communicating with the interior are fixedly installed on the outer wall of the spray pipe (13), and two connecting pipes (15) communicating with the interior are fixedly installed on the outer wall of the spray pipe (13). A second motor (16) is fixedly installed on the outer wall of the mounting frame (11). The second motor (16) The output shaft and the outer wall of the spray pipe (13) are both fixedly mounted with gears (17), and the two gears (17) are meshed with each other. The upper end surface of the support plate (4) is fixedly mounted with a spray pump (18), and the outer wall of the outlet pipe of the spray pump (18) is fixedly mounted with a U-shaped tube (19). The outer walls of both ends of the U-shaped tube (19) are both fixedly mounted with telescopic hoses (20), and the inner walls of the two telescopic hoses (20) are respectively fixedly connected to the outer walls of the corresponding connecting pipes (15). The upper end surface of the support plate (4) is fixedly mounted with a hot air blower (23) and a cold air blower (24), and the outer walls of the outlet pipes of the hot air blower (23) and the cold air blower (24) are both fixedly mounted with a blowing pipe (25), and the outer walls of the two blowing pipes (25) are both fixedly mounted with a blowing nozzle (26) connected to the interior.

7. The tarpaulin surface coating device according to claim 1, characterized in that: A winding fork (27) is rotatably mounted on the inner wall of the mounting plate (5), and a third motor (28) connected to a rotating shaft of the winding fork (27) is fixedly mounted on the outer wall of the mounting plate (5).

8. The tarpaulin surface coating device according to claim 1, characterized in that: A PLC controller (29) is fixedly mounted on the outer wall of the support frame (3), and the PLC controller (29) is electrically connected to the first motor (213), the hydraulic cylinder (222), two pointer sensors (712), two air pumps (726), the electric push rod (8), the second motor (16), the spray pump (18), the hot air blower (23), the cold air blower (24) and the third motor (28).

9. A coating method for a tarpaulin surface coating device, using the tarpaulin surface coating device according to any one of claims 1 to 8, the method comprising the following steps: S1. Tarpaulin fixing: Place one end of the tarpaulin into the clamping frame (221), and drive the clamping plate (223) to clamp and fix it through the hydraulic cylinder (222); S2. Tarpaulin traction and correction adjustment: Start the first motor (213), drive the moving block (214) to move through the screw (212), realize the tarpaulin conveying, the pointer sensor (712) monitors the deviation, and the PLC controller (29) controls the corresponding air pump (726) to inflate, so that the correction roller (724) adjusts the tarpaulin position; S3 coating parameter adjustment: tarpaulin to the bottom of the spray tube (13), the electric push rod (8) adjusts the height of the spray tube 13, the second motor (16) adjusts the fan nozzle (14) angle through the gear (17); S4 tarpaulin surface coating: Start the spray pump (18), the paint enters the spray tube (13) through the U-shaped tube (19), the telescopic hose 20, etc., and is sprayed on the tarpaulin surface by the fan-shaped nozzle (14); S5. Drying and shaping after coating: The tarpaulin is dried by hot air from a hot air blower (23), and then cooled by cold air from a cold air blower (24). S6. Finished product winding and collection: The treated tarpaulin is wound by the winding fork (27). After completion, the equipment is closed and the finished product is removed.

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