A weld seam painting device

Abstract

This utility model discloses a weld seam painting device, including a base, a wall panel fixedly connected to one side of the base, a paint tank mounted on the base, a front-to-back displacement mechanism on one side of the wall panel, a first slide connected to the front-to-back displacement mechanism, a drive box mounted on the first slide, a rotating column rotatably connected to one side of the drive box, a drive mechanism for controlling the rotation of the rotating column inside the drive box, a U-shaped plate connected to the outer end of the rotating column, a vertical displacement mechanism on the U-shaped plate, a second slide connected to the vertical displacement mechanism, two first hydraulic cylinders mounted on one side of the second slide, a connecting rod connected to the telescopic end of one of the first hydraulic cylinders, a brush plate threaded onto the connecting rod, and a mounting plate connected to the telescopic end of the other first hydraulic cylinder, a spray pipe connected to the mounting plate, a nozzle connected to the spray pipe, and the paint tank connected to the spray pipe via a delivery pipeline. The entire painting process eliminates the need for manual painting and brushing, thus improving the painting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, specifically a weld seam paint coating device. Background Technology

[0002] Gasifiers are key equipment in coal chemical and petrochemical industries, and the quality of their welds directly affects the equipment's safety, sealing, and service life. Weld treatment involves grinding, cleaning, and painting to prevent corrosion. When painting, the order should be from top to bottom, then from left to right. Currently, most methods involve applying paint to the weld first, then having workers use brushes to evenly spread the paint using the above method, resulting in low painting efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a weld seam painting device to solve the problem of low painting efficiency when painting weld seams in gasifiers.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A weld seam painting device includes a base, a vertical wall panel fixedly connected to one side of the base, a paint tank mounted on the base, a front-to-back displacement mechanism on the side of the wall panel away from the base, a first slide connected to the front-to-back displacement mechanism, a drive box mounted on the first slide, a rotating column rotatably connected to the side of the drive box away from the wall panel, a drive mechanism for controlling the rotation of the rotating column inside the drive box, a U-shaped plate connected to the outer end of the rotating column, a vertical displacement mechanism on the U-shaped plate, a second slide connected to the vertical displacement mechanism, two first hydraulic cylinders mounted on the side of the second slide away from the U-shaped plate, a connecting rod connected to the telescopic end of one of the first hydraulic cylinders, a brush plate threaded onto the connecting rod, and an L-shaped mounting plate connected to the telescopic end of the other first hydraulic cylinder, an L-shaped spray pipe connected to the mounting plate, a nozzle connected to the spray pipe, and the paint tank connected to the spray pipe via a delivery pipeline.

[0006] Preferably, the front-to-back displacement mechanism includes a first bearing seat connected to the front and rear ends of the wall panel, a first lead screw rotatably connected to the two first bearing seats, a first guide rod connected to the two first bearing seats, and a first motor installed on the front side of the wall panel. The first motor is drivenly connected to one end of the first lead screw, and a first slide is threadedly connected to the first lead screw, and the first slide is slidably connected to the first guide rod.

[0007] The above technical solution controls the first motor to work, drives the first lead screw to rotate, and when the first lead screw rotates, it drives the first slide to move back and forth along the first guide rod.

[0008] Preferably, the drive mechanism includes a second motor installed in the drive housing, a drive shaft connected to the second motor via a coupling, a first gear connected to the drive shaft, and a second gear connected to the rotating column, wherein the first gear meshes with the second gear.

[0009] The above technical solution controls the second motor to work, which drives the transmission shaft to rotate. When the transmission shaft rotates, it drives the rotating column to rotate through the cooperation of the first gear and the second gear, thereby driving the U-shaped plate to rotate.

[0010] Preferably, the vertical displacement mechanism includes a second bearing seat connected to the upper and lower ends of the U-shaped plate, a second lead screw rotatably connected to the two second bearing seats, a second guide rod connected to the two second bearing seats, and a third motor mounted on the upper end of the U-shaped plate. The third motor is drivenly connected to one end of the second lead screw, and the second slide is threadedly connected to the second lead screw, and the second slide is slidably connected to the second guide rod.

[0011] The above technical solution controls the third motor to work, which drives the second lead screw to rotate. When the second lead screw rotates, it drives the second slide to move up and down along the second guide rod.

[0012] Preferably, the delivery pipeline includes a pump body installed on the lower side of the paint tank. The inlet end of the pump body is connected to the paint tank through a pipe, and the outlet end of the pump body is connected to a paint outlet pipe. A flexible hose is connected to the paint outlet pipe, and the upper end of the hose is connected to a spray pipe.

[0013] In the above technical solution, the pump works to deliver the paint in the paint tank through the paint outlet pipe and hose to the spray pipe, and then spray it onto the weld seam through the nozzle.

[0014] Preferably, the lower end of the U-shaped plate is connected to a guide plate, and a guide hole is provided on the guide plate, with the flexible hose movably disposed within the guide hole.

[0015] In the above technical solution, when the first and second slides move, they will drive the hose to move together. The guide plate and guide hole can restrict the hose to a certain extent and prevent the hose from getting tangled.

[0016] Preferably, the base is connected to four corners with lifting lugs, a second hydraulic cylinder is installed on the lifting lugs, a first support plate is connected to the lower end of the second hydraulic cylinder, screws are slidably connected to both sides of the upper end of the wall panel, a second support plate is connected to the end of the screw away from the wall panel, double-sided foam adhesive is pasted on the side of the second support plate away from the screw, and nuts are threadedly connected to both sides of the screw on the wall panel.

[0017] The above technical solution controls the extension of the second hydraulic cylinder, which drives the first support plate to move downward, thus stabilizing the base. Double-sided foam adhesive is then applied to the end face of the second support plate. The nuts are loosened, and the screw is pushed against the furnace wall of the gasifier to adhere the double-sided foam adhesive to the furnace wall. Then, the nuts on both sides of the screw are tightened to keep the screw fixed. Thus, through the combined action of the first and second support plates, the coating device remains stable.

[0018] Preferably, the wall panel is connected to a downwardly inclined receiving hopper below the first slide, and the bottom surface of the receiving hopper is connected to a discharge pipe.

[0019] In the above technical solution, when applying paint, the paint that slides off the furnace wall will fall directly into the receiving hopper and be discharged through the discharge pipe. The discharge pipe can be connected to a waste paint collection box to collect waste paint and reduce pollution inside the furnace.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The coating device described in this invention is pushed to the weld seam, and paint is sprayed onto the weld seam through a nozzle. Then, the second slide is moved up and down by a vertical displacement mechanism, thereby applying paint from top to bottom through a brush plate. After each section is coated, the first slide is moved backward a certain distance by a front-back displacement mechanism, and paint is sprayed again through the nozzle, and then applied from top to bottom by the brush plate. After coating is completed, the rotating column is controlled by a drive mechanism to rotate, causing the U-shaped plate to rotate 90 degrees, thereby adjusting the direction of the brush plate. Then, the first slide is moved back and forth by a front-back displacement mechanism, and the brush plate is used to coat the weld seam from front to back until the paint is evenly applied. The entire process requires no manual painting and cannot be manually applied, thus improving the efficiency of paint coating. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the present invention;

[0023] Figure 2 This is a partial schematic diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of the second slide.

[0025] Figure 4 This is a schematic diagram of the coating weld of this utility model;

[0026] In the diagram: 1-Base, 2-Wall panel, 3-Paint box, 4-First slide, 5-Drive box, 6-Rotating column, 7-U-shaped plate, 8-Second slide, 9-First hydraulic cylinder, 10-Connecting rod, 11-Brush plate, 12-Mounting plate, 13-Spray pipe, 14-Nozzle, 15-First bearing seat, 16-First motor, 17-Second motor, 18-First gear, 19-Second gear, 20-Second lead screw, 21-Second guide rod, 22-Third motor, 23-Pump body, 24-Paint outlet pipe, 25-Hose, 26-Guide plate, 27-Second hydraulic cylinder, 28-First support plate, 29-Screw, 30-Second support plate, 31-Double-sided foam adhesive, 32-Nut, 33-Receiving hopper, 34-Weld, 35-Workbench. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] Please see Figures 1-4 A weld seam paint coating device is characterized by comprising a base 1, a vertical wall plate 2 fixedly connected to one side of the base 1, a paint tank 3 installed on the base 1, a paint injection pipe connected to the top of the paint tank for adding paint, and a transparent observation window provided on the side wall of the paint tank for observing the paint level.

[0030] The wall panel 2 is provided with a front-to-back displacement mechanism on the side away from the base. A first slide block 4 is driven to the front-to-back displacement mechanism, which drives the first slide block to move back and forth. Specifically, the front-to-back displacement mechanism includes first bearing seats 15 connected to the front and rear ends of the wall panel, a first lead screw rotatably connected to the two first bearing seats, a first guide rod connected to the two first bearing seats, and a first motor 16 installed on the front side of the wall panel. The first motor 16 is driven to one end of the first lead screw. The first slide block 4 is provided with a first screw hole and is threaded to the first lead screw through the first screw hole. The first slide block 4 is provided with first sliding holes on both sides of the first screw hole and is slidably connected to the first guide rod through the first sliding holes. Controlling the first motor 16 to work drives the first lead screw to rotate. When the first lead screw rotates, it drives the first slide block 4 to move back and forth along the first guide rod.

[0031] A drive box 5 is mounted on the first slide block 4. A rotating column 6 is rotatably connected to the side of the drive box 5 away from the wall panel. The drive box 5 contains a drive mechanism to control the rotation of the rotating column 6. A U-shaped plate 7 is connected to the outer end of the rotating column 6. The drive mechanism includes a second motor 17 mounted in the drive box, a transmission shaft connected to the second motor via a coupling, a first gear 18 connected to the transmission shaft, and a second gear 19 connected to the rotating column. The first gear 18 and the second gear 19 mesh. Controlling the second motor 17 to work drives the transmission shaft to rotate. When the transmission shaft rotates, the rotating column 6 rotates through the engagement of the first gear 18 and the second gear 19, thereby driving the U-shaped plate 7 to rotate.

[0032] The U-shaped plate 7 is equipped with a vertical displacement mechanism, on which a second slide block 8 is driven. The vertical displacement mechanism drives the second slide block to move up and down. Specifically, the vertical displacement mechanism includes second bearing seats connected to the upper and lower ends of the U-shaped plate, a second lead screw 20 rotatably connected to the two second bearing seats, a second guide rod 21 connected to the two second bearing seats, and a third motor 22 mounted on the upper end of the U-shaped plate. The third motor 22 is drivenly connected to one end of the second lead screw 20. The second slide block 8 is threadedly connected to the second lead screw 20 and slidably connected to the second guide rod 21. Controlling the third motor 22 causes the second lead screw 20 to rotate, and when the second lead screw 20 rotates, it drives the second slide block 8 to move up and down along the second guide rod 21.

[0033] The second slide block 8 has two mounting holes on the side away from the U-shaped plate. A first hydraulic cylinder 9 is installed in each mounting hole. One of the first hydraulic cylinders 9 has a connecting rod 10 at its telescopic end, and a brush plate 11 made of rubber is threaded onto the connecting rod 10. The other first hydraulic cylinder 9 has an L-shaped mounting plate 12 at its telescopic end, and an L-shaped spray pipe 13 is connected to the mounting plate 12. A nozzle 14 is connected to the spray pipe 13. The paint tank 3 is connected to the spray pipe 13 via a delivery pipeline. Specifically, the delivery pipeline includes a pump body 23 installed on the lower side of one side of the paint tank. The inlet end of the pump body 23 is connected to the paint tank 3 via a pipe, and the outlet end of the pump body 23 is connected to a paint outlet pipe 24. A ball valve is installed on the paint outlet pipe 24, and a flexible hose 25 is connected to the paint outlet pipe 24. The upper end of the hose 25 is connected to the spray pipe 13. When pump body 23 operates, it delivers paint from paint tank 3 through paint outlet pipe 24 and hose 25 to spray pipe 13, and then sprays it onto weld seam through nozzle 14. The length of the hose is greater than the stroke of the front-to-back displacement mechanism and the up-and-down displacement mechanism to prevent the hose from breaking during the movement of the first and second slides. Additionally, a guide plate 26 is connected to the lower end of the U-shaped plate 7, and a guide hole is provided on the guide plate 26, within which the hose 25 is movably positioned. When the first and second slides move, they cause the hose to move along with them. The guide plate and guide hole effectively restrict the movement of the hose, preventing it from tangling.

[0034] The base 1 has lifting lugs at its four corners, and a second hydraulic cylinder 27 is mounted on each lug. A first support plate 28 is connected to the lower end of the second hydraulic cylinder 27. Screws 29 are slidably connected to both sides of the upper end of the wall panel 2. A second support plate 30 is connected to the end of the screw 29 away from the wall panel. Double-sided foam adhesive 31 is adhered to the side of the second support plate 30 away from the screws. Nuts 32 are threaded onto both sides of the screw 29 on the wall panel. Controlling the extension of the second hydraulic cylinder 27 causes the first support plate 28 to move downwards, stabilizing the base 1. Double-sided foam adhesive 31 is then adhered to the end face of the second support plate 30. The nuts 32 are loosened, and the screw 29 is pushed towards the furnace wall of the gasifier, adhering the double-sided foam adhesive to the furnace wall. Then, the nuts 32 on both sides of the screw are tightened to fix the screw 29 in place. Thus, through the combined action of the first support plate 28 and the second support plate 30, the coating device remains stable. When relocation is required, lift the first support plate off the ground and the second support plate off the furnace wall, then replace the double-sided foam adhesive on the second support plate.

[0035] This invention also requires the provision of a hydraulic system to supply hydraulic oil to the first and second hydraulic cylinders.

[0036] The working principle of this embodiment is as follows:

[0037] First, a workbench 35 is built inside the furnace, with the workbench positioned at the weld seam 34. Then, the coating device is sent to the weld seam. Depending on the height of the weld seam, a pad can be placed under the base 1. When the U-shaped plate 7 is in a wet state, the brush plate 11 is aligned with the weld seam so that the brush plate 11 can brush onto the weld seam. Alternatively, the height of the workbench can be calculated in advance before it is built. Then, through the action of the first support plate 28 and the second support plate 30, the coating device is kept stable. Next, the U-shaped plate 7 is kept vertical, and the first hydraulic cylinder 9 below is extended, driving the nozzle 14 to move towards the furnace wall. Then, the ball valve is opened, the pump body 23 is started, paint is drawn out, and paint is sprayed onto the weld seam through the nozzle 14. Then, the first hydraulic cylinder 9 retracts, moving the nozzle away from the furnace wall. The first hydraulic cylinder 9 above is extended, making the brush plate 11 contact the furnace wall. Then, the second slide 8 is moved up and down by the up-and-down displacement mechanism, so that the paint is applied from top to bottom by the brush plate 11. After each section is applied, the first slide 4 is moved backward a certain distance by the front-and-back displacement mechanism, and then the nozzle 14 is sprayed onto the new section in the same way. Then, the paint is applied from top to bottom by the brush plate. After the coating is completed, the rotating column 6 is rotated by the drive mechanism, driving the U-shaped plate to rotate 90 degrees, thereby adjusting the direction of the brush plate 11. Then, the first slide 4 is moved back and forth by the front-and-back displacement mechanism, and the brush plate 11 is used to apply paint to the weld seam from front to back until the paint is evenly applied.

[0038] Example 2

[0039] Based on Embodiment 1, the wall panel 2 is connected to a downwardly inclined receiving hopper 33 below the first slide, and a discharge pipe is connected to the bottom surface of the receiving hopper 33. When applying paint, the paint that slides off the furnace wall will fall directly into the receiving hopper 33 and be discharged through the discharge pipe, which can be connected to a waste paint collection box to collect waste paint and reduce pollution inside the furnace.

[0040] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A weld seam painting device, characterized in that: Includes a base (1), a vertical wall panel (2) fixedly connected to one side of the base (1), a paint box (3) installed on the base (1), a front-to-back displacement mechanism provided on the side of the wall panel (2) away from the base, a first slide (4) being driven and connected to the front-to-back displacement mechanism, a drive box (5) being installed on the first slide (4), a rotating column (6) being rotatably connected on the side of the drive box (5) away from the wall panel, a drive mechanism for controlling the rotation of the rotating column (6) being provided inside the drive box (5), a U-shaped plate (7) being connected to the outer end of the rotating column (6), and an up-and-down displacement mechanism being provided on the U-shaped plate (7). The upper and lower displacement mechanism is connected to a second slide (8). Two first hydraulic cylinders (9) are installed on the side of the second slide (8) away from the U-shaped plate. The telescopic end of one of the first hydraulic cylinders (9) is connected to a connecting rod (10). A brush plate (11) is threaded onto the connecting rod (10). The telescopic end of the other first hydraulic cylinder (9) is connected to an L-shaped mounting plate (12). An L-shaped spray pipe (13) is connected to the mounting plate (12). A nozzle (14) is connected to the spray pipe (13). The paint box (3) is connected to the spray pipe (13) through a conveying pipeline.

2. The weld seam painting device according to claim 1, characterized in that: The front and rear displacement mechanism includes a first bearing seat (15) connected to the front and rear ends of the wall panel, a first lead screw rotatably connected to the two first bearing seats, a first guide rod connected to the two first bearing seats, and a first motor (16) installed on the front side of the wall panel. The first motor (16) is connected to one end of the first lead screw in a transmission connection. The first slide (4) is threadedly connected to the first lead screw, and the first slide (4) is slidably connected to the first guide rod.

3. The weld seam painting device according to claim 2, characterized in that: The drive mechanism includes a second motor (17) installed in the drive box, a drive shaft connected to the second motor via a coupling, a first gear (18) connected to the drive shaft, and a second gear (19) connected to the rotating column, wherein the first gear (18) and the second gear (19) mesh.

4. The weld seam painting device according to claim 3, characterized in that: The vertical displacement mechanism includes a second bearing seat connected to the upper and lower ends of the U-shaped plate, a second lead screw (20) rotatably connected to the two second bearing seats, a second guide rod (21) connected to the two second bearing seats, and a third motor (22) installed on the upper end of the U-shaped plate. The third motor (22) is connected to one end of the second lead screw (20) for transmission. The second slide (8) is threadedly connected to the second lead screw (20), and the second slide (8) is slidably connected to the second guide rod (21).

5. The weld seam painting device according to claim 4, characterized in that: The delivery pipeline includes a pump body (23) installed on the lower side of the paint tank. The inlet end of the pump body (23) is connected to the paint tank (3) through a pipe. The outlet end of the pump body (23) is connected to a paint outlet pipe (24). A flexible hose (25) is connected to the paint outlet pipe (24). The upper end of the hose (25) is connected to the spray pipe (13).

6. The weld seam painting device according to claim 5, characterized in that: The lower end of the U-shaped plate (7) is connected to a guide plate (26), and a guide hole is provided on the guide plate (26). The flexible hose (25) is movably disposed in the guide hole.

7. A weld seam painting device according to claim 6, characterized in that: The base (1) is connected to four corners with lifting lugs, and a second hydraulic cylinder (27) is installed on the lifting lugs. The lower end of the second hydraulic cylinder (27) is connected to a first support plate (28). The upper end of the wall panel (2) is slidably connected to both sides with screws (29). The end of the screw (29) away from the wall panel is connected to a second support plate (30). The side of the second support plate (30) away from the screw is covered with double-sided foam adhesive (31). Nuts (32) are threadedly connected to both sides of the screw (29) on the wall panel.

8. The weld seam painting device according to claim 1, characterized in that: The wall panel (2) is located below the first slide and is connected to a downwardly inclined receiving hopper (33), and the bottom surface of the receiving hopper (33) is connected to a discharge pipe.

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