Automatic spraying device for anticorrosive paint

Abstract

The invention relates to the technical field of spraying devices, in particular to an automatic anticorrosive paint spraying device which comprises a mounting platform, a paint spraying mechanism is arranged on one side of the mounting platform and used for conducting spraying and curing operation at the same time, and the distance between the paint spraying mechanism and a pipe wall processing mechanism is adjustable. And a pipe wall processing mechanism used for preheating the pipe wall is arranged on the other side of the mounting platform, a sliding supporting mechanism is arranged on the mounting platform, and the paint spraying mechanism comprises a telescopic straight rod. According to the paint spraying device, the paint spraying mechanism is arranged, a lamp strip assembly and a spray head assembly are matched with each other, a coating can be cured while anti-corrosion spraying is conducted, the problem that in a traditional technology, the coating sags or falls off due to uncuring can be effectively solved, in addition, an anti-corrosion paint pipeline is fixed to the end of the pipeline through a supporting assembly, and the anti-corrosion paint pipeline is convenient to use. And the limiting round holes keep coaxial, so that a coating can be effectively prevented from being damaged by friction between the anticorrosive paint pipeline and the inner wall of the pipeline when the pipeline moves.

Description

Technical Field

[0001] The present invention relates to the technical field of spraying devices, in particular to an automatic spraying device for anti-corrosion coatings. Background Art

[0002] In the fields of petrochemicals, municipal water supply, marine engineering, etc., anti-corrosion of the inner wall of pipelines is a key measure to extend the service life. Traditional manual painting has problems such as low efficiency and uneven coating. Especially for small-diameter (DN < 300mm) pipelines, personnel cannot enter, resulting in construction difficulties. Therefore, more and more people will use automatic spraying devices to spray anti-corrosion on the inner wall of the pipeline.

[0003] However, the automatic spraying devices in the existing technology mostly adopt step-by-step operation, and need to stop and wait for curing after spraying, which often causes coating sagging or dust pollution. Moreover, the equipment has poor adaptability and cannot adapt to changes in pipe diameter. Parts often need to be replaced, which is inconvenient to use. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides an automatic spraying device for anti-corrosion coatings, which solves the technical problem that the automatic spraying device in the existing technology needs to stop and wait for solidification after spraying, which often causes coating sagging or dust pollution. It has the advantage of being able to effectively avoid coating sagging or dust pollution.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: an automatic anti-corrosion paint spraying device, comprising a mounting platform, a paint spraying mechanism is provided on one side of the mounting platform, the paint spraying mechanism is used to simultaneously perform spraying and curing operations, the distance between the paint spraying mechanism and the pipe wall treatment mechanism is adjustable, and a pipe wall treatment mechanism for preheating the pipe wall is provided on the other side of the mounting platform, and a sliding support mechanism is provided on the mounting platform. During the movement of the mounting platform along the inside of the pipeline, the paint spraying mechanism will automatically spray the anti-corrosion paint evenly on the inner wall of the pipeline. At the same time, the pipe wall treatment mechanism will perform laser heating on the pipe wall, thereby improving the adhesion between the anti-corrosion paint and the pipe wall. The paint spraying mechanism comprises a telescopic straight rod, which is fixedly connected to the mounting platform, and a nozzle assembly is fixedly installed on the telescopic straight rod. The nozzle assembly is provided with a connecting pipe fitting, and a circular protrusion is fixedly installed on the outside of the connecting pipe fitting. A light strip assembly for curing the anti-corrosion paint is provided on the circular protrusion. The telescopic straight rod can control the distance between the nozzle assembly and the pipe wall treatment mechanism.

[0006] Preferably, the connecting pipe is connected to an anti-corrosion paint pipeline, and a support component is movably installed on the anti-corrosion paint pipeline. A limited circular hole is provided on the support component. During the pipe wall spraying operation, the staff will movably install the support component on the end of the pipeline. Subsequently, the anti-corrosion paint pipeline will pass through the limited circular hole and be connected to the connecting pipe, which can effectively prevent the anti-corrosion paint pipeline from contacting the inner wall of the pipeline.

[0007] Preferably, two movable screws are symmetrically provided on the support assembly, and a limit clamp is movably installed on the movable screw. When the staff screws the movable screw, the two limit clamps will contact the pipe at the same time, thereby completing the installation operation of the support assembly.

[0008] Preferably, the light strip assembly is a UV-LED flexible light strip, which can quickly cure the UV anti-corrosion coating sprayed on the pipe wall.

[0009] Preferably, the sliding support mechanism includes a lifting base, which is detachably mounted on the mounting platform. The lifting base is provided with movable balls, and the lifting base and the movable balls are respectively provided in several groups. When the lifting base is extended, the movable balls will come into contact with the inner wall of the pipe, thereby ensuring that the mounting platform can move inside the pipe.

[0010] Preferably, L-shaped brackets are symmetrically provided on both sides of the installation platform, and limiting rubber pads are fixedly installed on the L-shaped brackets. The limiting rubber pads can effectively prevent the installation platform from tipping over inside the pipeline.

[0011] Preferably, the pipe wall processing mechanism includes a controller, which is provided with a ring laser head, and a traction assembly is provided outside the ring laser head. The controller can control the output power of the ring laser head in real time, thereby achieving rapid preheating of the inner wall of the pipe.

[0012] Preferably, the traction assembly includes a traction rod, an electromagnet is provided at the end of the traction rod, and a circular iron sheet is fixedly mounted on the outer shell of the annular laser head. When the electromagnet is energized and contacts the circular iron sheet, the traction rod and the annular laser head are fixed, and then the mounting platform moves synchronously with the traction rod.

[0013] By means of the above technical solution, the present invention provides an automatic anti-corrosion coating spraying device, which has at least the following beneficial effects: 1. The present invention sets a paint spraying mechanism and utilizes the mutual cooperation between the light strip assembly and the nozzle assembly to cure the coating at the same time as the anti-corrosion spraying, which can effectively avoid the problem of coating sagging or shedding caused by uncured coating in traditional processes. In addition, the anti-corrosion paint pipeline is fixed to the end of the pipeline through a support assembly and is kept coaxial by a limiting circular hole, which can effectively prevent the anti-corrosion paint pipeline from rubbing against the inner wall of the pipeline to damage the coating when the pipeline moves.

[0014] 2. The present invention provides a paint spraying mechanism, and the support assembly adopts a symmetrical clamping design of a movable screw and a limit clamp. It can be quickly fixed to the end of a pipe of different diameters by screwing without the need for additional tools. Its modular structure allows for flexible replacement of nozzle assemblies (such as fan-shaped or rotary cup nozzles) and light strip assemblies (such as UV-LEDs of different wavelengths), and is suitable for a variety of UV coatings such as epoxy and polyurethane.

[0015] 3. The present invention sets a sliding support mechanism, which drives multiple groups of movable balls to make close contact with the inner wall of the pipe through the lifting base, forming evenly distributed rolling support points. It can form double anti-dumping protection with the symmetrically arranged L-shaped brackets and limiting rubber pads, so that the installation platform can always maintain coaxiality with the pipe during the traction process, which can effectively avoid deflection or jamming.

[0016] 4. The present invention sets a sliding support mechanism, and the lifting base adopts a detachable design. The installation quantity and elongation can be flexibly adjusted according to the diameter of the pipe. Combined with the universal rolling characteristics of the movable ball, fast adaptive positioning can be achieved. No complicated debugging is required during use, and the operation is simple.

[0017] 5. The present invention provides a pipe wall processing mechanism, which can automatically preheat the pipe wall before anti-corrosion spraying, so that the inner wall of the pipe reaches an ideal activation state, which can effectively improve the adhesion of the coating. Moreover, the traction component adopts an innovative electromagnetic adsorption design. After power is turned on, the traction rod and the circular iron sheet of the annular laser head are instantly fixed, which can significantly improve the movement synchronization accuracy and effectively avoid the jitter problem caused by traditional rope traction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 A three-dimensional diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the structure of the paint spraying mechanism of the present invention; Figure 3 Schematic diagram of the structure of the connecting pipe in the present invention; Figure 4 Schematic diagram of the structure of the sliding support mechanism of the present invention; Figure 5 This is a schematic structural diagram of the present invention in working condition; Figure 6 Schematic diagram of the structure of the pipe wall processing mechanism in the present invention; Figure 7 It is a structural schematic diagram of the support assembly in the present invention.

[0019] In the figure: 1. Installation platform; 2. Paint spraying mechanism; 201. Telescopic straight rod; 202. Nozzle assembly; 203. Connecting pipe; 204. Circular protrusion; 205. Light strip assembly; 206. Support assembly; 207. Limiting circular hole; 208. Movable screw; 209. Limiting clamp; 3. Sliding support mechanism; 301. Lifting base; 302. Movable ball; 303. L-shaped bracket; 304. Limiting rubber pad; 4. Pipe wall processing mechanism; 401. Controller; 402. Ring laser head; 403. Traction assembly; 5. Anti-corrosion paint pipeline. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0021] Example 1 The automatic spraying devices in the existing technology mostly adopt step-by-step operation, and need to stop and wait for curing after spraying, which often causes coating sagging or dust pollution. In addition, the equipment has poor adaptability and cannot adapt to changes in pipe diameter. Parts often need to be replaced, which is inconvenient to use. In order to solve this technical defect in the existing technology, Figure 1 、 Figure 2 、 Figure 3 as well as Figure 7 As shown, this embodiment proposes an automatic anti-corrosion paint spraying device, which can cure the coating at the same time as anti-corrosion spraying, and can effectively avoid the problem of coating falling off caused by sagging or uncured coating in traditional processes. A paint spraying mechanism 2 is provided on one side of the installation platform 1. The paint spraying mechanism 2 is used to perform spraying and curing operations at the same time. The distance between the paint spraying mechanism 2 and the pipe wall treatment mechanism 4 is adjustable. A pipe wall treatment mechanism 4 for preheating the pipe wall is provided on the other side of the installation platform 1. A sliding support mechanism 3 is provided on the installation platform 1. During the movement of the installation platform 1 along the inside of the pipeline, the paint spraying mechanism 2 will automatically spray the anti-corrosion paint evenly on the inner wall of the pipeline. At the same time, the pipe wall treatment mechanism 4 will perform laser heating on the pipe wall, thereby improving the adhesion between the anti-corrosion paint and the pipe wall.

[0022] Specifically, the paint spraying mechanism 2 includes a telescopic straight rod 201, which is fixedly connected to the mounting platform 1, and a nozzle assembly 202 is fixedly installed on the telescopic straight rod 201. The nozzle assembly 202 is provided with a connecting pipe 203, and a circular protrusion 204 is fixedly installed on the outside of the connecting pipe 203. The circular protrusion 204 is provided with a light strip assembly 205 for curing the anti-corrosion paint. The telescopic straight rod 201 can control the distance between the nozzle assembly 202 and the pipe wall processing mechanism 4. The light strip assembly 205 is a UV-LED flexible light strip, which can quickly cure the UV anti-corrosion paint sprayed on the pipe wall. The connecting pipe 203 is connected to the anti-corrosion paint pipeline 5. A support assembly 206 is movably installed on the anti-corrosion paint pipe 5, and a limiting circular hole 207 is provided on the support assembly 206. During the pipe wall spraying operation, the staff will movably install the support assembly 206 on the end of the pipe. Subsequently, the anti-corrosion paint pipe 5 will pass through the limiting circular hole 207 and be connected to the connecting pipe 203, which can effectively prevent the anti-corrosion paint pipe 5 from contacting the inner wall of the pipe. Two movable screws 208 are symmetrically arranged on the support assembly 206, and a limiting clamp 209 is movably installed on the movable screw 208. When the staff screws the movable screw 208, the two limiting clamps 209 will contact the pipe at the same time, thereby completing the installation operation of the support assembly 206.

[0023] According to the above content, when using this device to spray anti-corrosion on the inner wall of the pipeline (mainly for pipelines with small diameters that are difficult for personnel to enter), first, the staff will place the installation platform 1 inside the pipeline, and then connect the anti-corrosion coating pipeline 5 with the connecting pipe 203.

[0024] Next, the staff will put the support assembly 206 on the end of the pipe, and then fix the support assembly 206 by screwing the movable screw 208, and ensure that the limiting circular hole 207 is coaxial with the pipe, thereby supporting the anti-corrosion coating pipe 5 during the movement of the installation platform 1 to prevent damage to the coating.

[0025] Next, the installation platform 1 will move at a constant speed along the inner wall of the pipe under the action of the traction component 403. During the movement, the UV paint inside the anti-corrosion paint pipe 5 will be sprayed to the surroundings through the nozzle component 202, thereby performing anti-corrosion spraying processing on the inner wall of the pipe.

[0026] At the same time, the light strip assembly 205 will use ultraviolet rays to quickly cure the anti-corrosion coating, which can prevent the coating from falling off to a certain extent.

[0027] In this embodiment, a paint spraying mechanism 2 is provided, and the cooperation between the light strip assembly 205 and the nozzle assembly 202 is utilized to cure the coating at the same time as the anti-corrosion spraying, which can effectively avoid the problem of coating shedding caused by sagging or uncured coating in traditional processes. In addition, the anti-corrosion paint pipe 5 is fixed to the end of the pipe by the support assembly 206 and is kept coaxial by the limiting circular hole 207, which can effectively prevent the anti-corrosion paint pipe 5 from rubbing against the inner wall of the pipe to damage the coating when the pipe moves; moreover, in this embodiment, a paint spraying mechanism 2 is provided, and the support assembly 206 adopts a symmetrical clamping design of a movable screw 208 and a limiting clamp 209, which can be quickly fixed to the end of pipes of different diameters by screwing, without the need for additional tools. Its modular structure allows for flexible replacement of the nozzle assembly 202 (such as a fan-shaped or rotary cup nozzle) and the light strip assembly 205 (such as UV-LEDs of different wavelengths), and is suitable for a variety of UV coatings such as epoxy and polyurethane.

[0028] Example 2 In order to enable the installation platform 1 to move stably along the inner wall of the pipeline, based on the first embodiment, as shown in FIG. Figure 1 、 Figure 4 as well as Figure 5 As shown, this embodiment is provided with a sliding support mechanism 3. Specifically, the sliding support mechanism 3 includes a lifting base 301. The lifting base 301 is detachably mounted on the mounting platform 1. The lifting base 301 is provided with movable balls 302. The lifting base 301 and the movable balls 302 are respectively provided with several groups. When the lifting base 301 is extended, the movable balls 302 will conflict with the inner wall of the pipe, thereby ensuring that the mounting platform 1 can move inside the pipe. L-shaped brackets 303 are symmetrically provided on both sides of the mounting platform 1. A limiting rubber pad 304 is fixedly installed on the L-shaped bracket 303. The limiting rubber pad 304 can effectively prevent the mounting platform 1 from tipping over inside the pipe.

[0029] According to the above content, after the staff puts the installation platform 1 into the pipe, the multiple movable balls 302 will contact the inner wall of the pipe at the same time under the action of the lifting base 301, so that the installation platform 1 and the pipe are coaxial.

[0030] Next, the installation platform 1 will move along the inside of the pipe under the action of the traction component 403. During the movement, the symmetrically arranged L-shaped bracket 303 and the limiting rubber pad 304 will pre-support the installation platform 1. When the installation platform 1 is slightly skewed, the limiting rubber pad 304 will contact the pipe wall, which can effectively prevent the installation platform 1 from tipping over inside the pipe and causing the coating to be damaged.

[0031] In this embodiment, a sliding support mechanism 3 is provided, and a lifting base 301 is used to drive multiple groups of movable balls 302 to closely contact the inner wall of the pipe, thereby forming evenly distributed rolling support points. The L-shaped bracket 303 and the limiting rubber pad 304 are symmetrically provided to form a double anti-dumping protection, so that the installation platform 1 can always maintain coaxiality with the pipe during the traction process, which can effectively avoid deflection or jamming. Moreover, in this embodiment, a sliding support mechanism 3 is provided, and the lifting base 301 adopts a detachable design, which can flexibly adjust the installation quantity and extension amount according to the pipe diameter. Combined with the universal rolling characteristics of the movable balls 302, fast adaptive positioning can be achieved. No complicated debugging is required during use, and the operation is simple.

[0032] Example 3 In order to improve the adhesion between the coating and the pipe wall as much as possible, based on the above embodiment, as Figure 1 、 Figure 2 as well as Figure 6 As shown, this embodiment is provided with a pipe wall processing mechanism 4. Specifically, the pipe wall processing mechanism 4 includes a controller 401 fixedly mounted on the mounting platform 1. A ring laser head 402 is provided on the controller 401. A traction assembly 403 is provided on the outside of the ring laser head 402. The controller 401 can control the output power of the ring laser head 402 in real time, thereby realizing rapid preheating of the inner wall of the pipeline. The traction assembly 403 includes a traction rod, an electromagnet is provided at the end of the traction rod, and a circular iron sheet is fixedly mounted on the outer shell of the ring laser head 402. When the electromagnet is energized and contacts the circular iron sheet, the traction rod and the ring laser head 402 are fixed. Next, the mounting platform 1 will move synchronously with the traction rod.

[0033] According to the above content, the traction component 403 adopts an electromagnetic adsorption connection design. After power is turned on, the traction rod and the ring laser head 402 can be quickly fixed. Next, the installation platform 1 can move along the inner wall of the pipeline under the action of the traction rod, thereby ensuring the normal progress of the anti-corrosion spraying.

[0034] Moreover, during the mobile spraying process, the ring laser head 402, under the action of the controller 401, can realize intelligent preheating treatment according to the characteristics of different pipes and coatings, so that the inner wall of the pipeline reaches the optimal construction temperature, which can improve the adhesion between the pipe wall and the anti-corrosion coating to a certain extent.

[0035] This embodiment provides a pipe wall processing mechanism 4, which can automatically and intelligently preheat the pipe wall before anti-corrosion spraying, so that the inner wall of the pipe reaches an ideal activation state, which can effectively improve the adhesion of the coating. Moreover, the traction component 403 adopts an innovative electromagnetic adsorption design. After power is turned on, the traction rod and the circular iron sheet of the annular laser head 402 are instantly fixed, which can significantly improve the movement synchronization accuracy and effectively avoid the jitter problem caused by traditional rope traction.

[0036] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by a person skilled in the art. The provision of power is also common knowledge in the art. The present invention is mainly used to protect mechanical devices, so the control method and circuit connection are not explained in detail in the present invention.

[0037] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automatic anti-corrosion coating spraying device, comprising a mounting platform (1), characterized in that: A paint spraying mechanism (2) is provided on one side of the installation platform (1), and the paint spraying mechanism (2) is used for performing spraying and curing operations simultaneously. The distance between the paint spraying mechanism (2) and the pipe wall processing mechanism (4) is adjustable. A pipe wall processing mechanism (4) for preheating the pipe wall is provided on the other side of the installation platform (1). A sliding support mechanism (3) is provided on the installation platform (1); The paint spraying mechanism (2) comprises a telescopic straight rod (201), the telescopic straight rod (201) being fixedly connected to the mounting platform (1), a nozzle assembly (202) being fixedly mounted on the telescopic straight rod (201), a connecting pipe (203) being provided on the nozzle assembly (202), a circular protrusion (204) being fixedly mounted on the outside of the connecting pipe (203), and a light strip assembly (205) for curing the anti-corrosion paint being provided on the circular protrusion (204).

2. The automatic anti-corrosion coating spraying device according to claim 1 is characterized in that: The connecting pipe (203) is connected to an anti-corrosion coating pipeline (5), a support assembly (206) is movably mounted on the anti-corrosion coating pipeline (5), and a limited position circular hole (207) is provided on the support assembly (206).

3. The automatic anti-corrosion coating spraying device according to claim 2, characterized in that: Two movable screw rods (208) are symmetrically arranged on the support assembly (206), and a limiting clamping block (209) is movably installed on the movable screw rods (208).

4. The automatic anti-corrosion coating spraying device according to claim 1 is characterized in that: The light strip assembly (205) is a UV-LED flexible light strip.

5. The automatic anti-corrosion coating spraying device according to claim 1 is characterized in that: The sliding support mechanism (3) comprises a lifting base (301), the lifting base (301) is detachably mounted on the mounting platform (1), and a movable ball (302) is provided on the lifting base (301).

6. The automatic anti-corrosion coating spraying device according to claim 5, characterized in that: L-shaped brackets (303) are symmetrically arranged on both sides of the installation platform (1), and a limiting rubber pad (304) is fixedly installed on the L-shaped bracket (303).

7. The automatic anti-corrosion coating spraying device according to claim 1, characterized in that: The pipe wall processing mechanism (4) comprises a controller (401), the controller (401) is fixedly mounted on the mounting platform (1), a ring laser head (402) is arranged on the controller (401), and a traction assembly (403) is arranged outside the ring laser head (402).

8. The automatic anti-corrosion coating spraying device according to claim 7, characterized in that: The traction assembly (403) comprises a traction rod, an electromagnet is provided at the end of the traction rod, and a circular iron sheet is fixedly mounted on the outer shell of the ring laser head (402).

Images