Automatic spraying device and spraying method for inner wall of long pipe of ship

Abstract

The invention discloses an automatic spraying device and method for the inner wall of a ship long pipe, and belongs to the technical field of ship long pipe spraying. A vehicle body and a spraying assembly, namely, a dust removal assembly are included, a first driving part is arranged on the vehicle body, and a lifting table is arranged at the top of the first driving part; the spraying assembly comprises a paint pump, a second driving part and a nozzle, a storage box is arranged on the vehicle body, the paint pump is installed on the lifting table and connected with the storage box, a guide rail sliding rod is arranged on one side of the paint pump, the second driving part is installed on the guide rail sliding rod, the nozzle is installed at the output end of the second driving part, and the paint pump is connected with the nozzle; the dust removal assembly comprises a draught fan and a plurality of blowing nozzles, the output end of the draught fan is connected with a straight rod, a circular ring is arranged on the straight rod, the blowing nozzles are installed on the outer surface of the circular ring, and the draught fan conveys air to each blowing nozzle through the straight rod. According to the spraying device, the inner wall of the long pipeline can be evenly sprayed, and spraying treatment can be conducted on the inner walls of pipelines with different diameters.

Description

Technical Field

[0001] The invention relates to the technical field of spraying a long ship tube, and in particular to an automatic spraying device and a spraying method for the inner wall of a long ship tube. Background Art

[0002] Different pipes are needed in the manufacture of the hull. During the processing, the inner wall needs to be sprayed with anti-corrosion paint. The spray is dispersed into uniform and fine droplets by pressure or centrifugal force through a spray gun or a disc atomizer, and then applied to the surface of the object. It can be divided into air spray, airless spray, electrostatic spray and various derivatives of the above basic spray forms, such as high-flow low-pressure atomization spray, thermal spray, automatic spray, multi-group spray, etc. However, some large-diameter long pipes are usually used. Large-diameter long pipes refer to pipes with larger diameters and longer lengths.

[0003] Due to the long length of the pipeline, the preparation and subsequent processing and construction are relatively difficult. Due to some environmental requirements, it is necessary to spray paint on the inner and outer surfaces of the long pipe to improve corrosion resistance. Then the length of the entire single pile is too long, and manual spraying may not be uniform. Even for some long pipes with smaller diameters, it is difficult to spray the inner wall of the pipe manually, which is prone to leakage or uneven spraying. It is even impossible for humans to enter the interior to spray the inner wall of the pipe. Summary of the invention

[0004] The main purpose of the present invention is to provide an automatic spraying device and method for the inner wall of a long ship pipe, aiming to solve the problems of the above-mentioned background technology. The inner wall of a long pipe can be sprayed evenly, and the spraying operation can be adjusted according to the inner wall of the pipe to make the spraying more uniform, and the inner wall of pipes with different diameters can be sprayed.

[0005] To achieve the above object, the present invention provides an automatic spraying device for the inner wall of a long ship tube, comprising:

[0006] A vehicle body, wherein a first driving member is provided on the vehicle body, and a lifting platform is provided on the top of the first driving member;

[0007] A spraying assembly, the spraying assembly includes a paint pump, a second driving member and a nozzle, a storage box is provided on the vehicle body, the paint pump is installed on the lifting platform and connected to the storage box, a guide rail slide is provided on one side of the paint pump, the second driving member is installed on the guide rail slide, the nozzle is installed at the output end of the second driving member, and the paint pump is connected to the nozzle;

[0008] A dust removal component includes a fan and a plurality of air blowing nozzles, wherein the output end of the fan is connected to a straight rod, a circular ring is provided on the straight rod, and the plurality of air blowing nozzles are mounted on the outer surface of the circular ring, and the fan conveys wind to each air blowing nozzle through the straight rod.

[0009] Optionally, a first measuring piece is provided on the straight rod for measuring the diameter of the inner wall of the pipe, and a second measuring piece is provided on the top of the second driving member for measuring the distance from the top of the second driving member to the inner wall of the pipe.

[0010] Optionally, a fixed seat is provided on the guide rail slide bar, the second driving member is installed on the fixed seat, a connecting platform is provided at the top of the second driving member, the nozzle is installed on the connecting platform, and the extension and retraction of the second driving member can change the distance between the nozzle and the guide rail slide bar.

[0011] Optionally, an adapter is provided at the output end of the paint pump, the guide rail slide is mounted on the adapter, a first output pipe is provided on the adapter, a slider is provided on the guide rail slide, and the first output pipe passes through the slider to be connected to the nozzle.

[0012] Optionally, a second output pipe is provided between the paint pump and the storage tank, and the paint pump extracts the paint in the storage tank through the second output pipe.

[0013] Optionally, a connecting strip is provided on the inner wall of the circular ring, the connecting strip is connected to the straight rod, and the connecting strip and the circular ring are both hollow.

[0014] Optionally, a channel is opened in the straight rod, and the wind force of the fan is transmitted from the channel to the connecting strip, then from the connecting strip to the ring, and finally blown out from the blowing nozzle.

[0015] Optionally, a center console is provided on the vehicle body, and the first measuring component and the second measuring component are electrically connected to the center console, and can transmit measurement results to the center console for display.

[0016] Optionally, a laser radar is provided on the vehicle body for planning the driving route of the device in the pipeline.

[0017] The present application also proposes a method for spraying the inner wall of a long ship tube, using the above-mentioned automatic spraying device for the inner wall of a long ship tube, comprising the following steps:

[0018] S1. The automatic spraying device for the inner wall of the long pipe of the ship is placed into the pipe, and the diameter of the inner wall of the pipe is measured by the first measuring device to obtain the diameter value of the pipe and display it on the central console;

[0019] S2, starting the first driving member to raise the lifting platform so that the height position of the guide rail slide bar is approximately at the center of the pipeline;

[0020] S3, starting the second measuring member to obtain the distance from the top of the second driving member to the inner wall of the pipeline, and then starting the output end of the second driving member to extend outward, so that the nozzle is close to the inner wall of the pipeline, and adjusting according to the real-time monitoring data of the second measuring member to ensure that the nozzle is close to the inner wall of the pipeline and does not interfere with the pipeline;

[0021] S4. Ensure that the device moves in a straight line in the pipeline through laser navigation, put the spray paint into the storage box, start the fan, blow and remove dust from the inner wall of the pipeline during the driving process, then start the paint pump, and evenly spray the inner wall of the pipeline during the driving process.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The first measuring piece can be used to adjust the position of the lifting platform according to the diameter of the inner wall of the pipe so that the guide rail slide is in the center of the pipe, and then the second measuring piece can be used to adjust the position of the nozzle so that the nozzle is as close to the inner wall of the pipe as possible to avoid waste of paint.

[0024] 2. The reduction motor drives the rotating head to rotate, so that the rotating head drives the guide rail to rotate, so that the nozzle can achieve surrounding spraying during the driving process, and the spraying operation can be performed on various places on the inner wall of the pipeline to avoid missed places. The distance between each nozzle and the inner wall of the pipeline is consistent, which can avoid the uneven thickness of the paint on the inner wall of the pipeline.

[0025] 3. By providing a fan, during the process of traveling, the wind force generated by the fan is blown out from the blowing nozzle to first remove dust and clean the inner wall of the pipeline to prepare for subsequent spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] Figure 1 It is a structural schematic diagram of an embodiment of an automatic spraying device for the inner wall of a long tube of a ship according to the present invention;

[0028] Figure 2A partial cross-sectional view of an embodiment of the automatic spraying device for the inner wall of a long tube of a ship according to the present invention;

[0029] Figure 3 Flow chart of the spraying method proposed in this application.

[0030] Description of Figure Numbers:

[0031]

[0032]

[0033] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] See also Figure 1-Figure 2 The present invention proposes an automatic spraying device 100 for the inner wall of a long tube of a ship, which includes a body 10, a spraying component and a dust removal component. The body 10 is provided with a first driving member 11, and a lifting platform 12 is provided on the top of the first driving member 11.

[0038] The spraying assembly includes a paint pump 20, a second driving member 24 and a nozzle 26. The vehicle body 10 is provided with a storage box 13 for storing spray paint. The paint pump 20 is installed on the lifting platform 12 and connected to the storage box 13. The paint in the storage box 13 can be pumped to the nozzle 26, and the nozzle 26 sprays the paint to the inner wall of the pipeline. A guide rail 22 is provided on one side of the paint pump 20. The second driving member 24 is installed on the guide rail 22. The nozzle 26 is installed at the output end of the second driving member 24. The paint pump 20 is connected to the nozzle 26.

[0039] The dust removal assembly includes a fan 30 and a plurality of air blowing nozzles 34 . The output end of the fan 30 is connected to a straight rod 31 . A circular ring 32 is provided on the straight rod 31 . The plurality of air blowing nozzles 34 are mounted on the outer surface of the circular ring 32 . The fan 30 delivers wind to each air blowing nozzle 34 through the straight rod 31 .

[0040] In the present embodiment, both the first driving member 11 and the second driving member 24 can be electric push rods, but are not limited thereto. The paint pump 20 and the fan 30 are both prior art and will not be described in detail here. The first driving member 11 is used for lifting and lowering the lifting platform 12. When the first driving member 11 is extended, the lifting platform 12 rises. When the first driving member 11 is retracted, the lifting platform 12 descends, and the lowest descending height of the lifting platform 12 depends on the limit to which the output end of the first driving member 11 can retract; the second driving member 24 is used for adjusting the extended position of the nozzle 26, and the position of the nozzle 26 can be adjusted according to the diameter of the inner wall of the pipe, so that the nozzle 26 can be close to the inner wall of the pipe, so that the spraying is more uniform and the waste of spraying materials can be reduced.

[0041] The guide rail slide bar 22 and the straight rod 31 extend out of both ends of the vehicle body 10, and one side of the straight rod 31 is the front of the vehicle, and one side of the guide rail slide bar 22 is the rear of the vehicle. It can be understood that when the device moves in the pipeline, the side where the fan 30 is located is the front of the vehicle, and the wind generated by the fan 30 is blown out from the blowing nozzle 34 to first remove dust from the inner wall of the pipeline, and then the paint pump 20 draws the spraying material to the nozzle 26 to spray on the inner wall of the pipeline.

[0042] In one embodiment of the present invention, a fixed seat 23 is provided on the guide rail slide bar 22, and the second driving member 24 is installed on the fixed seat 23. A connecting platform 25 is provided at the top of the second driving member 24, and the nozzle 26 is installed on the connecting platform 25. The extension and retraction of the second driving member 24 can change the distance between the nozzle 26 and the guide rail slide bar 22.

[0043] In this embodiment, the guide rail slide rod 22 is cylindrical, the fixed seat 23 is rectangular, and the four side walls of the fixed seat 23 are provided with second driving members 24. The four second driving members 24 are distributed in a "cross" shape, and four angles of the pipeline can be sprayed simultaneously, thereby increasing the spraying area, improving the spraying efficiency, and making the spraying more uniform.

[0044] The output end of the paint pump 20 is provided with an adapter 21, the guide rail slide bar 22 is fixedly mounted on the adapter 21, the adapter 21 is provided with a first output pipe 27, the guide rail slide bar 22 is provided with a slider 28, the first output pipe 27 passes through the slider 28 and is connected to the connecting platform 25, and then is connected to the nozzle 26 from the connecting platform 25 to deliver the paint to the nozzle 26. It should be noted that the adapter 21 is not fixedly connected to the output end of the paint pump 20, the adapter 21 can rotate, and a sealing gasket is provided at the connection to prevent the paint from leaking.

[0045] The outer surface of the adapter 21 is provided with a plurality of bosses 29, each boss 29 is arranged at intervals, and a reduction motor 50 is provided on the lifting platform 12, and a gear 51 is provided at the output end of the reduction motor 50, and the gear 51 is meshed with the boss 29 on the surface of the adapter 21. It can be understood that the reduction motor 50 drives the gear 51 to rotate, thereby driving the adapter 21 to rotate slowly, similar to the gear transmission, the adapter 21 drives the guide rail slide bar 22 to rotate slowly, so that the nozzle 26 also rotates, and the spraying angle of the nozzle 26 changes, and the surrounding spraying is performed, so that the spraying operation can be performed on all places on the inner wall of the pipeline to avoid places where spraying is missed, and the distance between each nozzle 26 and the inner wall of the pipeline is consistent, which can avoid the phenomenon of uneven thickness of the paint on the inner wall of the pipeline.

[0046] Among them, the first output tube 27 between the slider 28 and the adapter 21 is soft, and the first output tube 27 between the slider 28 and the nozzle 26 is hard. When the second driving member 24 retracts, the first output tube 27 also drops down, close to the guide rail slide bar 22, and pushes the slider 28 to approach the adapter 21. It can be understood that if the diameter of the pipeline is small and the distance between the nozzle 26 and the pipeline needs to be lowered, if the first output tube between the slider 28 and the nozzle 26 is soft, there will be bending, and it is possible that when rotating, it will contact the inner wall of the pipeline and scrape off the newly sprayed paint. It should be noted that the hard part of the first output tube 27 is connected to the connecting platform 25 and the slider 28 by a ball head connection.

[0047] In an embodiment of the present invention, a first measuring member 40 is provided on the straight rod 31 for measuring the inner wall diameter of the pipe, and a second measuring member 41 is provided on the top of the second driving member 24 for measuring the distance from the top of the second driving member 24 to the inner wall of the pipe. It should be noted that the straight rod 31 is aligned with the guide rail slide bar 22 and is in the same plane, the central axes of the two are in a straight line, and the height of the straight rod 31 is equal to the height of the guide rail slide bar 22.

[0048] In this embodiment, the first measuring component 40 is a laser diameter gauge, which calculates the inner wall diameter of the pipe by laser scanning the inner wall of the pipe; the second measuring component 41 is a laser rangefinder, which is used to measure the distance from the top of the second driving component 24 to the inner wall of the pipe, and the real-time monitoring data of the second measuring component 41 is used for adjustment to ensure that the nozzle 26 is close to the inner wall of the pipe and does not interfere with the pipe.

[0049] It can be understood that the inner wall of the pipe to be sprayed is first measured by the first measuring piece 40, and the overhanging height of the first driving piece 11, that is, the height of the lifting platform 12, is adjusted according to the obtained diameter value of the pipe, so that the straight rod 31 is as centrally located as possible in the pipe, that is, the guide rail slide bar 22 is in the centrally located pipe, and then the position of the nozzle is adjusted in cooperation with the second measuring piece 41, so that the distance from each nozzle 26 to the inner wall of the pipe is the same, so that the thickness of the spraying is uniform.

[0050] In one embodiment of the present invention, a connecting bar 33 is disposed on the inner wall of the circular ring 32 , and the connecting bar 33 is connected to the straight rod 31 . Both the connecting bar 33 and the circular ring 32 are hollow.

[0051] In this embodiment, the number of the connecting strips 33 is three, and each connecting strip 33 is arranged at intervals, and the interval angles are consistent. It can be understood that a channel 35 is opened in the straight rod 31, and the wind force of the fan 30 is transmitted from the channel 35 to the connecting strip 33, and then from the connecting strip 33 to the ring 32, and finally blown out from the blowing nozzle 34 to blow away the dust on the inner wall of the pipeline, preparing for subsequent spraying.

[0052] In one embodiment of the present invention, a center console 14 is provided on the vehicle body 10, and the first measuring member 40 and the second measuring member 41 are electrically connected to the center console, and can transmit the measurement results to the center console 14 for display. A battery box 16 is also provided on the vehicle body 10 to provide power for the instruments of the device.

[0053] In this embodiment, a controller is provided on the central console 14, and a laser radar 15 is provided on the vehicle body 10, which is used to plan the driving route of the device in the pipeline, ensure that the device drives straight in the pipeline, and avoid deviation and tipping of the device. It should be noted that the vehicle body 10 can be driven by a motor to directly drive the moving wheels to move, which is consistent with the prior art and will not be described in detail here.

[0054] In one embodiment of the present invention, a second output pipe 60 is provided between the paint pump 20 and the storage box 13 , and the paint pump 20 extracts the paint in the storage box 13 through the second output pipe 60 .

[0055] In this embodiment, the storage box 13 is further provided with a material injection port 17 for injecting the paint into the storage box 13. The second output pipe 60 is provided with a pressure gauge 61, and the pressure gauge 61 sets the limit pressure and automatically transmits a signal to the central console 14. The middle section of the second output pipe 60 is provided with a flow valve 62 for controlling the flow of the paint.

[0056] See also Figure 3 The present application also proposes a method for spraying the inner wall of a long ship tube, using the automatic spraying device 100 for the inner wall of a long ship tube as described above, comprising the following steps:

[0057] S1, the automatic spraying device 100 for the inner wall of the long pipe of the ship is placed into the pipe, and the diameter of the inner wall of the pipe is measured by the first measuring member 40, and the diameter value of the pipe is obtained and displayed on the central console 14;

[0058] S2, starting the first driving member 11 to raise the lifting platform 12 so that the height position of the guide rail slide bar 22 is approximately at the center of the pipeline;

[0059] S3, start the second measuring member 41 to obtain the distance from the top of the second driving member 24 to the inner wall of the pipeline, then start the output end of the second driving member 24 to extend outward, so that the nozzle 26 is close to the inner wall of the pipeline, and adjust according to the real-time monitoring data of the second measuring member 41 to ensure that the nozzle 26 is close to the inner wall of the pipeline and does not interfere with the pipeline;

[0060] S4. Ensure that the device moves in a straight line in the pipeline through laser navigation, put the spray paint into the storage box 13, start the fan 30, blow and remove dust on the inner wall of the pipeline during the driving process, and then start the paint pump 20 to evenly spray the inner wall of the pipeline during the driving process.

[0061] By using the first measuring piece 40 to measure the diameter of the inner wall of the pipe, the height of the lifting platform 12 can be adjusted according to the inner wall of the pipe, and then the position of the nozzle 26 can be adjusted by the second measuring piece 41, so that the nozzle 26 is as close to the inner wall of the pipe as possible to avoid waste of paint. During the driving process, the nozzle 26 rotates to achieve surrounding spraying, and various places on the inner wall of the pipe can be sprayed to avoid missing places. The distance between each nozzle 26 and the inner wall of the pipe is consistent, which can avoid the phenomenon of uneven thickness of the paint on the inner wall of the pipe. Spraying can be achieved on the inner wall of a long pipe or a pipe with a small diameter.

[0062] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An automatic spraying device for the inner wall of a long ship tube, characterized in that: include: A vehicle body, wherein a first driving member is provided on the vehicle body, and a lifting platform is provided on the top of the first driving member; A spraying assembly, the spraying assembly includes a paint pump, a second driving member and a nozzle, a storage box is provided on the vehicle body, the paint pump is installed on the lifting platform and connected to the storage box, a guide rail slide is provided on one side of the paint pump, the second driving member is installed on the guide rail slide, the nozzle is installed at the output end of the second driving member, and the paint pump is connected to the nozzle; A dust removal component includes a fan and a plurality of air blowing nozzles, wherein the output end of the fan is connected to a straight rod, a circular ring is provided on the straight rod, and the plurality of air blowing nozzles are mounted on the outer surface of the circular ring, and the fan conveys wind to each air blowing nozzle through the straight rod.

2. The automatic spraying device for the inner wall of a long ship tube as claimed in claim 1, characterized in that: The straight rod is provided with a first measuring piece for measuring the inner wall diameter of the pipeline, and the top of the second driving piece is provided with a second measuring piece for measuring the distance from the top of the second driving piece to the inner wall of the pipeline.

3. The automatic spraying device for the inner wall of a long ship tube as claimed in claim 1, characterized in that: The guide rail slide bar is provided with a fixing seat, the second driving member is installed on the fixing seat, the top of the second driving member is provided with a connecting platform, the nozzle is installed on the connecting platform, and the extension and retraction of the second driving member can change the distance between the nozzle and the guide rail slide bar.

4. The automatic spraying device for the inner wall of a long ship tube as claimed in claim 3, characterized in that: The output end of the paint pump is provided with an adapter, the guide rail slide rod is mounted on the adapter, the adapter is provided with a first output pipe, the guide rail slide rod is provided with a slider, and the first output pipe passes through the slider to be connected with the nozzle.

5. The automatic spraying device for the inner wall of a long ship tube as claimed in claim 4, characterized in that: A second output pipe is provided between the paint pump and the storage box, and the paint pump extracts the paint in the storage box through the second output pipe.

6. The automatic spraying device for the inner wall of a long ship tube as claimed in claim 1, characterized in that: A connecting strip is provided on the inner wall of the circular ring, and the connecting strip is connected to the straight rod. Both the connecting strip and the circular ring are hollow.

7. The automatic spraying device for the inner wall of a long ship tube as claimed in claim 6, characterized in that: A channel is provided in the straight rod, and the wind force of the fan is transmitted from the channel to the connecting strip, then transmitted from the connecting strip to the ring, and finally blown out from the blowing nozzle.

8. The automatic spraying device for the inner wall of a long ship tube as claimed in claim 1, characterized in that: A center console is provided on the vehicle body, and the first measuring component and the second measuring component are electrically connected to the center console and can transmit measurement results to the center console for display.

9. The automatic spraying device for the inner wall of a long ship tube as claimed in claim 1, characterized in that: The vehicle body is provided with a laser radar for planning the driving route of the device in the pipeline.

10. A method for spraying the inner wall of a long ship pipe, characterized in that: The automatic spraying device for the inner wall of a long ship tube as claimed in any one of claims 1 to 9 comprises the following steps: S1. The automatic spraying device for the inner wall of the long pipe of the ship is placed into the pipe, and the diameter of the inner wall of the pipe is measured by the first measuring device to obtain the diameter value of the pipe and display it on the central console; S2, starting the first driving member to raise the lifting platform so that the height position of the guide rail slide bar is approximately at the center of the pipeline; S3, starting the second measuring member to obtain the distance from the top of the second driving member to the inner wall of the pipeline, and then starting the output end of the second driving member to extend outward, so that the nozzle is close to the inner wall of the pipeline, and adjusting according to the real-time monitoring data of the second measuring member to ensure that the nozzle is close to the inner wall of the pipeline and does not interfere with the pipeline; S4. Ensure that the device moves in a straight line in the pipeline through laser navigation, put the spray paint into the storage box, start the fan, blow and remove dust from the inner wall of the pipeline during the driving process, then start the paint pump, and evenly spray the inner wall of the pipeline during the driving process.

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