A spraying device

Abstract

The present invention belongs to the technical field of ship painting, and discloses a spraying device, which includes a mobile vehicle group, a material storage group, and a spraying assembly. The material storage assembly is installed on the mobile vehicle group and is used for storing paint; the spraying assembly includes a telescopic arm, a spray head, and a switching valve. The telescopic arm is rotatably connected to the mobile vehicle group, and a feeding pipe is arranged inside the telescopic arm, and the feeding pipe is communicated with the material storage assembly; the spray head includes an inner diameter pipe and an outer diameter pipe that are arc-shaped and coaxially arranged, and a plurality of material spraying ports are arranged at intervals on the side of the inner diameter pipe facing away from the outer diameter pipe and on the side of the outer diameter pipe facing away from the outer diameter pipe; the switching valve includes a liquid inlet end and two liquid outlet ends, the liquid inlet end can be communicated with any one of the liquid outlet ends, the liquid inlet end is connected to the feeding pipe, and the two liquid outlet ends are respectively connected to the inner diameter pipe and the outer diameter pipe. This spraying device can effectively realize the pre-spraying at the edges of the hull structure and the butt welds, without manual spraying, with automated operation spraying, less material consumption, and improved spraying efficiency and spraying quality.

Description

Technical Field

[0001] The present invention relates to the technical field of ship painting, and particularly relates to a spraying device. Background Art

[0002] During the ship painting process, according to the technical requirements of the "Performance Standard for Protective Coatings in Ballast Tanks" (PSPC), due to the positions of the hull structure edges, welds, etc., the film thickness after spraying often fails to meet the requirements of the PSPC. Therefore, before the formal large-area spraying, the above areas need to be pre-sprayed separately to ensure good paint adhesion and appropriate coating thickness. The current existing method is to manually brush by workers using rollers or brushes. The pre-coating efficiency is poor, a large number of workers are required to participate, the brushing levels of the workers are different, the brushing thickness is uneven and difficult to control, which increases the operation difficulty and reduces the operation quality. Summary of the Invention

[0003] The purpose of the present invention is to provide a spraying device to solve the problems of low spraying efficiency and poor spraying quality at positions such as the hull structure edges and welds.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A spraying device is provided, including:

[0006] A mobile vehicle group;

[0007] A material storage component, installed on the mobile vehicle group for storing paint;

[0008] A spraying component, the spraying component includes:

[0009] A telescopic arm, rotatably connected to the mobile vehicle group, and a feed pipe is disposed inside the telescopic arm, and the feed pipe is communicated with the material storage component;

[0010] A nozzle, including an inner diameter pipe and an outer diameter pipe that are arc-shaped and coaxially arranged, and a plurality of spraying ports are spaced apart on the side of the inner diameter pipe away from the outer diameter pipe and on the side of the outer diameter pipe away from the outer diameter pipe;

[0011] A switching valve, including an inlet end and two outlet ends, the inlet end can be communicated with any one of the outlet ends, the inlet end is connected to the feed pipe, and the two outlet ends are respectively connected to the inner diameter pipe and the outer diameter pipe.

[0012] Optionally, the mobile vehicle group includes a vehicle group main body and a plurality of magnetic wheels, and the plurality of magnetic wheels are rotatably installed at the bottom of the vehicle group main body, and the telescopic arm is rotatably connected to the vehicle group main body.

[0013] Optionally, the material storage component includes:

[0014] The material storage box has a hollow interior forming a material storage cavity. An outlet is provided on the material storage box and is in communication with the material storage cavity. The supply pipe is in communication with the outlet.

[0015] The sliding partition is slidably installed in the material storage cavity;

[0016] The pressure stabilizing device is installed on the material storage box and can drive the sliding partition to move and pressurize the paint in the material storage cavity.

[0017] Optionally, the paint spraying ports on the inner diameter pipe are evenly spaced along the length direction of the inner diameter pipe.

[0018] Optionally, the distribution spacing of the paint spraying ports on the outer diameter pipe is smaller than the distribution spacing of the paint spraying ports on the inner diameter pipe.

[0019] Optionally, the telescopic arm includes a plurality of sleeves with hollow interiors and axially slidably connected, and the supply pipe passes through the sleeves.

[0020] Optionally, there are two sets of the spraying assemblies, and the two sets of spraying assemblies are spaced and installed on the mobile vehicle group.

[0021] Optionally, the orientation of the nozzles of one set of the spraying assemblies is opposite to the orientation of the nozzles of the other set of the spraying assemblies.

[0022] Optionally, it further includes an intelligent control module. The intelligent control module is communicatively connected to the mobile vehicle group, the material storage assembly, and the spraying assembly, and can control the start and stop of the mobile vehicle group, the material storage assembly, and the spraying assembly.

[0023] Optionally, the supply pipe is a plastic hose or a metal hose.

[0024] Advantages of the present invention:

[0025] This spraying device can effectively achieve pre-spraying at the edges of the hull structure and at the butt welds, eliminating the need for manual spraying. It performs automated spraying operations with less material consumption, improving the spraying efficiency. Moreover, the device includes a material storage assembly that can achieve real-time material supply, avoiding pipeline dragging and affecting the movement of the device. The semi-circular arc nozzles are well-suited for diagonal welds, butt welds, and structural free edges. Additionally, for convex and concave seams, the inner diameter pipe and the outer diameter pipe can be selectively used for spraying, enhancing the spraying quality. Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of the spraying device described in the embodiment of the present invention;

[0027] Figure 2 is a schematic structural diagram of the telescopic arm described in the embodiment of the present invention;

[0028] Figure 3 is a schematic structural diagram of the spray head according to an embodiment of the present invention;

[0029] Figure 4 is a schematic structural diagram of the mobile vehicle group according to an embodiment of the present invention;

[0030] Figure 5 is a schematic structural diagram of the material storage assembly according to an embodiment of the present invention.

[0031] In the figure:

[0032] 1. Mobile vehicle group; 11. Vehicle group main body; 12. Magnetic wheel;

[0033] 2. Material storage assembly; 21. Material storage tank; 211. Discharge port; 22. Sliding partition;

[0034] 3. Spraying assembly; 31. Telescopic arm; 311. Feeding pipe; 312. Sleeve; 32. Spray head; 321. Inner diameter pipe; 322. Outer diameter pipe; 323. Spray material port. Detailed implementation manners

[0035] The following details the embodiments of the present invention. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar components or components with the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. It can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0037] In the description of the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0038] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", and "right" are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying operations, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] The technical solution of the present invention will be further described below in conjunction with the drawings and through specific embodiments.

[0040] As Figures 1 - 5 shown, the present invention provides a spraying device, which includes a mobile vehicle group 1, a material storage component 2, and a spraying component 3. The material storage component 2 is installed on the mobile vehicle group 1 and is used for storing paint. The spraying component 3 includes a telescopic arm 31, a nozzle 32, and a switching valve (not shown in the figure). As Figure 2 shown, the telescopic arm 31 can axially extend and retract, is rotatably connected to the mobile vehicle group 1, and can be adjusted at any angle. A supply pipe 311 is arranged inside the telescopic arm 31, and the supply pipe 311 is communicated with the material storage component 2. The paint in the material storage component 2 can enter the supply pipe 311. Optionally, the supply pipe 311 can be a flexible pipe body such as a plastic hose or a metal hose with flexibility and freedom. As Figure 3 shown, the nozzle 32 includes an inner diameter pipe 321 and an outer diameter pipe 322 that are bent in an arc shape and coaxially arranged. A plurality of spraying ports 323 are arranged at intervals on the side of the inner diameter pipe 321 facing away from the outer diameter pipe 322 and on the side of the outer diameter pipe 322 facing away from the outer diameter pipe 322. The switching valve (not shown in the figure) includes an inlet end and two outlet ends. The inlet end can be switched to select to communicate with any one of the outlet ends. The switching valve in this embodiment is a common three-way switching valve in the field. The inlet end of the switching valve is connected to the supply pipe 311, and the two outlet ends are respectively connected to the inner diameter pipe 321 and the outer diameter pipe 322. According to the actual situation, when spraying the butt convex seam, the supply pipe 311 can be switched to communicate with the inner diameter pipe 321, and the paint is sprayed out from the spraying ports 323 of the inner diameter pipe 321, which can perform covering spraying on the micro convex surface and the long and narrow free edge of the butt weld; when spraying the butt concave seam, the supply pipe 311 can be switched to communicate with the outer diameter pipe 322, and centralized spraying can be performed on the right-angle concave seam of the diagonal joint to ensure the coating thickness.

[0041] The spraying device of the present invention can effectively realize the pre-spraying at the edges of the hull structure and the butt welds, without manual spraying, automatic operation spraying, less material consumption, improved spraying efficiency, and the device includes a material storage component, which can realize real-time feeding, avoid pipeline dragging and affecting the driving of the device. The semi-circular arc nozzle is well adapted to the diagonal welds, butt welds, and structural free edges, and the inner diameter pipe and the outer diameter pipe can be selectively used for spraying for convex seams and concave seams, improving the spraying quality.

[0042] Further, as Figure 4 shown, the mobile vehicle group 1 includes a vehicle group main body 11 and a plurality of magnetic wheels 12. The plurality of magnetic wheels 12 are rotatably installed at the bottom of the vehicle group main body 11, and the telescopic arm 31 is rotatably connected to the vehicle group main body 11. It can be understood that since the ship structure is mostly made of steel, the magnetic wheels 12 can be magnetically adsorbed to the ship structure. Using the magnetic principle, the mobile vehicle group 1 can move stably on the ship structure and is not easily separated from the ship structure. Preferably, the mobile vehicle group 1 in this embodiment is a remote-controlled magnetic explosion-proof trolley, which can be remotely controlled by a remote control device. The implementation of remote control specifically refers to the prior art and will not be elaborated in this embodiment.

[0043] Further, as Figure 5 shown, the material storage assembly 2 includes a material storage tank 21, a sliding partition 22 and a pressure stabilizing device. The interior of the material storage tank 21 is hollow to form a material storage cavity for accommodating the coating material. An outlet 211 communicating with the material storage cavity is provided on the material storage tank 21, and the supply pipe 311 communicates with the material storage cavity through the outlet 211. The sliding partition 22 is slidably installed in the material storage cavity; the pressure stabilizing device (not shown in the figure) is installed on the material storage tank 21, and it can drive the sliding partition 22 to move to pressurize the coating material in the material storage cavity to maintain the internal pressure of the material storage cavity and ensure the spraying pressure at the nozzle. The pressure stabilizing device is a commonly used device in the field and can be a telescopic push rod or other device components that can push the sliding partition 22 to move and pressurize.

[0044] Optionally, in this embodiment, the spraying ports 323 on the inner diameter pipe 321 are uniformly spaced along the length direction of the inner diameter pipe 321 to improve the uniformity of spraying. Optionally, as Figure 3 shown, the distribution spacing of the spraying ports 323 on the outer diameter pipe 322 in this embodiment is smaller than the distribution spacing of the spraying ports 323 on the inner diameter pipe 321. In particular, the distribution of the spraying ports 323 on the protruding part of the outer diameter pipe 322 is more dense to improve the spraying effect.

[0045] Optionally, the telescopic arm 31 in this embodiment includes a plurality of sleeves 312 that are hollow inside and axially slidably telescoped. The supply pipe 311 is passed through the sleeves 312 to reduce pipeline entanglement, and at the same time, the sleeves 312 protect the supply pipe 311 to avoid pipe explosion and pollution.

[0046] Optionally, as Figure 1 shown, two sets of spraying assemblies 3 are provided in this embodiment. The two sets of spraying assemblies 3 are spaced apart and installed on the mobile vehicle group 1, and the two sets of spraying assemblies 3 can perform spraying operations simultaneously, which is beneficial to improving the spraying efficiency. Optionally, as Figure 1As shown, in this embodiment, the orientations of the nozzles 32 of one set of spraying components 3 are opposite to those of the nozzles 32 of the other set of spraying components 3 to adapt to different working conditions. In addition, the orientations of the nozzles 32 of the two sets of spraying components 3 can also be the same, including but not limited to those shown in the drawings of this embodiment.

[0047] Optionally, the spraying device further includes an intelligent control module. The intelligent control module is communicatively connected to the mobile vehicle group 1, the material storage component 2, and the spraying component 3, and can plan the running trajectory and the spraying amount of the nozzles according to the actual part to be pre-coated. Under the control of the intelligent control module, according to the actual situation, by inputting relevant parameters, the spraying device can automatically run along the running trajectory, set the length and angle of the telescopic arm according to the surface condition of the part to be pre-coated, and determine the usage of the nozzle diameter; the intelligent control module is an existing control module in the field, and the specific implementation process can refer to the prior art, which will not be elaborated in this embodiment.

[0048] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A spraying device, characterized in that, Comprising: Mobile vehicle group (1); Material storage assembly (2), installed on the mobile vehicle group (1) for storing paint; Spraying assembly (3), the spraying assembly (3) includes: Telescopic arm (31), rotatably connected to the mobile vehicle group (1), a feed pipe (311) is arranged inside the telescopic arm (31), and the feed pipe (311) is communicated with the material storage assembly (2); Nozzle (32), including an inner diameter pipe (321) and an outer diameter pipe (322) that are arc-shaped and coaxially arranged, a plurality of material spraying ports (323) are spaced apart on one side of the inner diameter pipe (321) facing away from the outer diameter pipe (322) and on one side of the outer diameter pipe (322) facing away from the outer diameter pipe (322); Switching valve, including an inlet end and two outlet ends, the inlet end can be communicated with any one of the outlet ends, the inlet end is connected to the feed pipe (311), and the two outlet ends are respectively connected to the inner diameter pipe (321) and the outer diameter pipe (322); The distribution spacing of the material spraying ports (323) on the outer diameter pipe (322) is smaller than the distribution spacing of the material spraying ports (323) on the inner diameter pipe (321).

2. The spraying device according to claim 1, wherein, The mobile vehicle group (1) includes a vehicle group main body (11) and a plurality of magnetic wheels (12), the plurality of magnetic wheels (12) are rotatably installed at the bottom of the vehicle group main body (11), and the telescopic arm (31) is rotatably connected to the vehicle group main body (11).

3. The spraying device according to claim 1, characterized in that, The material storage assembly (2) includes: Material storage tank (21), with a hollow interior forming a material storage cavity, a discharge port (211) communicated with the material storage cavity is arranged on the material storage tank (21), and the feed pipe (311) is communicated with the discharge port (211); Sliding partition plate (22), slidably installed in the material storage cavity; Voltage stabilizing device, installed on the material storage tank (21), capable of driving the sliding partition plate (22) to move and pressurize the paint in the material storage cavity.

4. The spraying device according to claim 1, characterized in that, The material spraying ports (323) on the inner diameter pipe (321) are evenly spaced along the length direction of the inner diameter pipe (321).

5. The spraying device according to claim 1, characterized in that, The telescopic arm (31) includes a plurality of sleeves (312) with a hollow interior and axially slidably connected, and the feed pipe (311) is arranged inside the sleeves (312).

6. The spraying device according to claim 1, characterized in that, Two sets of the spraying assemblies (3) are provided, and the two sets of the spraying assemblies (3) are spaced and installed on the mobile vehicle group (1).

7. The spraying device according to claim 6, characterized in that, The orientation of the nozzles (32) of one set of the spraying assemblies (3) is opposite to the orientation of the nozzles (32) of the other set of the spraying assemblies (3).

8. The spraying device according to claim 1, wherein It further includes an intelligent control module, which is communicatively connected to the mobile vehicle group (1), the material storage assembly (2) and the spraying assembly (3), and can control the start and stop of the mobile vehicle group (1), the material storage assembly (2) and the spraying assembly (3).

9. The spraying device according to claim 1, characterized in that, The feed pipe (311) is a plastic hose or a metal hose.

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