Steel pipe surface anti-rust coating spraying equipment

Abstract

The utility model discloses steel pipe surface antirust coating spraying equipment which comprises a spraying box and conveying rollers, the conveying rollers parallel to each other are evenly arranged below the end, close to a feeding port, of the spraying box, a lead screw is arranged on one side of the bottom end in the spraying box, a transmission block is arranged on the lead screw, and a sliding rod is arranged on the other side in the spraying box and parallel to the lead screw. A sliding block is arranged at the position, corresponding to the transmission block, of the sliding rod, scraping plates are arranged at the bottoms of the sliding block and the transmission block, a drying pipe is arranged at the position, corresponding to the discharging opening, of one end of the spraying box, a preheating pipe is arranged in the middle of the bottom of the drying pipe, and the other end of the preheating pipe is connected with the spraying box. Spraying agents are collected through front-back movement of the scraping plate, waste caused by adhesion of the spraying agents is prevented, the spraying agents are directly heated and dried after being sprayed and are not dried by blowing air, and the situation that hot air blows away the attached spraying agents, and the spraying effect of the spraying agents is affected is prevented.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe spraying technology, specifically to a steel pipe surface anti-rust coating spraying equipment. Background Art

[0002] Steel pipe is a tubular product made primarily of steel. Common materials include carbon steel and alloy steel. Depending on the manufacturing process and application, it can be used as a pipeline for transporting fluids such as oil, natural gas, water, coal gas, and steam. During the production and processing of steel pipes, they need to be coated to enhance their various properties.

[0003] In existing technologies, when spraying steel pipes, the spray droplets are usually collected directly without collecting the spray adhering to the bottom, which results in some waste. Furthermore, during drying, hot air is blown directly out, which may cause the hot air to disperse the spray adhering to the surface of the steel pipe, thus affecting the coating effect. Utility Model Content

[0004] The purpose of this invention is to provide a rust-proof coating spraying device for steel pipe surfaces to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel pipe surface anti-rust coating spraying device, comprising a spraying box and conveyor rollers. An inlet and an outlet are respectively provided at the middle positions of both ends of the spraying box. Parallel conveyor rollers are evenly arranged below the end of the spraying box near the inlet. Connecting plates are provided at the middle positions of both side walls near the outlet end of the spraying box, and a spraying pipe is arranged between the connecting plates. Spray nozzles are evenly arranged inside the spraying pipe. A wire is provided on one side of the bottom end of the spraying box. The spray box contains a screw rod, and a transmission block is provided on the screw rod. A sliding rod is provided on the other side of the spray box, parallel to the screw rod, and a sliding block is provided on the sliding rod corresponding to the transmission block. A scraper is provided at the bottom of the sliding block and the transmission block, and the bottom of the scraper is in contact with the bottom of the spray box. A drying pipe is provided at one end of the spray box corresponding to the discharge port, and the bottom of the drying pipe near the discharge port is sloped. A preheating pipe is provided in the middle of the bottom of the drying pipe, and the other end of the preheating pipe is connected to the spray box.

[0006] Air outlet blocks are located at the midpoint of both sides of the spray box away from the discharge port, and air outlet holes are evenly distributed on the inner side of the air outlet blocks. This allows the steel pipe to be conveyed into the spray pipe for uniform spraying. During spraying, the lead screw and slide rod drive the scraper to move back and forth to scrape away the accumulated spray, which can collect the spray and prevent it from sticking to the bottom of the spray box and causing waste. When the sprayed steel pipe is conveyed to the drying pipe, the hot air in the drying pipe can heat and dry the steel pipe, preventing the direct airflow from drying the steel pipe and causing the hot air to blow away the spray attached to the steel pipe, affecting the spraying effect. The hot air can be reused through the preheating pipe, which can save resources. After drying, the pipe can be directly cooled by blowing air to prevent workers from accidentally touching and damaging it.

[0007] The inner walls at both ends of the spray box above the scraper are provided with sliding grooves, and filter cotton is slidably connected between the sliding grooves so that the filter cotton filters the dripping spray and prevents the collected spray from containing impurities and dust; the nozzles at the bottom of the inner side of the spray pipe are provided with a flow channel, and a feeding pipe is provided on one side of the spray pipe, and the other end of the feeding pipe extends to the outside of the spray box so that the flow channel can guide the spray accumulated in the spray pipe and prevent it from cooling and sticking to the inside, affecting the subsequent spraying.

[0008] Preferably, a fan is provided at the middle position of the top of the spray box near one end of the drying pipe, and the air supply pipe of the fan is fixedly connected to a connecting pipe, and the other end of the connecting pipe is provided with a branch pipe connected to the air outlet block.

[0009] Preferably, a hot air blower is provided on the spray box on one side of the fan, and a hot air pipe is provided on one side of the hot air blower, and the other end of the hot air pipe is connected to the top of the drying pipe.

[0010] Preferably, a motor is provided on one side of the spray box corresponding to the lead screw, and the output end of the motor passes through the spray box and is connected to the lead screw.

[0011] Preferably, the bottom of the spray box is provided with a discharge pipe with a funnel-shaped top in the middle position, and a downward-sloping guide plate is provided above the preheating pipe inside the spray box. A sealing door is fixedly connected to the side of the spray box corresponding to the slide groove by a hinge, so that the spray in the spray box can be discharged and collected from the discharge pipe, and the guide plate guides the dripping spray to prevent it from entering the preheating pipe.

[0012] Compared with the existing technology in this field, this application has its own advantages and beneficial technical effects: the anti-rust coating spraying equipment for steel pipes uses a motor to drive the transmission block on the lead screw to move, which in turn drives the scraper to move. The scraper moves stably back and forth under the action of the transmission block and sliding block on the lead screw and slide rod, scraping away the accumulated spray and facilitating its collection, thus preventing the spray from accumulating and sticking and causing waste. When the steel pipe is conveyed to the drying tube, a hot air blower can send hot air into the drying tube to heat and dry the steel pipe evenly, preventing the direct spraying of airflow from drying the steel pipe, which would cause the hot air to blow away the spray adhering to the steel pipe and affect the spraying effect. Furthermore, the hot air is reused through the preheating tube, which can save resources. Attached Figure Description

[0013] Figure 1 This is a side sectional view of the present invention.

[0014] Figure 2 This is a top sectional view of the spray box, lead screw, and slide bar of this utility model.

[0015] Figure 3 This is a top sectional view of the spray pipe of this utility model.

[0016] Figure 4 This is a top sectional view of the spray box, spray pipe, and feed pipe of this utility model.

[0017] Figure 5 This is a top view of the structure of this utility model.

[0018] Figure 6 This is a schematic diagram of the front structure of the spray box of this utility model;

[0019] In the diagram: 1. Spraying box; 2. Conveyor roller; 3. Spraying pipe; 4. Fan; 5. Hot air blower; 6. Hot air pipe; 7. Connecting pipe; 8. Air outlet block; 9. Drying pipe; 10. Preheating pipe; 11. Guide plate; 12. Filter cotton; 13. Discharge pipe; 14. Scraper; 15. Slide chute; 16. Motor; 17. Lead screw; 18. Transmission block; 19. Sliding block; 20. Slide rod; 21. Drainage channel; 22. Feeding pipe; 23. Connecting plate. DETAILED DESCRIPTION

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1-6This utility model provides an embodiment of a steel pipe surface anti-rust coating spraying device, including a spraying box 1 and a conveying roller 2. The spraying box 1 has an inlet and an outlet at the middle positions of both ends, and the conveying rollers 2 are evenly arranged parallel to each other at the lower part of the spraying box 1 near the inlet. The spraying box 1 has a connecting plate 23 at the middle position of both side walls near the outlet, and a spraying pipe 3 is arranged between the connecting plates 23. The spraying pipe 3 is evenly arranged with nozzles. A lead screw 17 is provided on one side of the bottom of the spraying box 1, and a transmission block 18 is provided on the lead screw 17. A sliding rod 20 is provided on the other side of the spraying box 1 at a position parallel to the lead screw 17, and a sliding block 19 is provided on the sliding rod 20 at a position corresponding to the transmission block 18. A scraper 14 is provided at the bottom of the sliding block 19 and the transmission block 18, and the bottom of the scraper 14 is in contact with the bottom of the spraying box 1.

[0022] A drying pipe 9 is provided at one end of the spray box 1 corresponding to the discharge port. The bottom of the inner side of the drying pipe 9 is inclined near the discharge port. A preheating pipe 10 is provided in the middle of the bottom of the drying pipe 9. The other end of the preheating pipe 10 is connected to the spray box 1. Air outlet blocks 8 are provided in the middle of both sides of the end of the spray box 1 away from the discharge port. Air outlet holes are evenly provided on the inner side of the air outlet blocks 8. A fan 4 is provided in the middle of the top of the spray box 1 near the end of the drying pipe 9. The air supply pipe of the fan 4 is fixedly connected to a connecting pipe 7. The other end of the connecting pipe 7 is provided with a branch pipe connected to the air outlet blocks 8. A hot air fan 5 is provided on the spray box 1 on one side of the fan 4. A hot air pipe 6 is provided on one side of the hot air fan 5. The other end of the hot air pipe 6 is connected to the top of the drying pipe 9.

[0023] A motor 16 is installed on one side of the spray box 1, corresponding to the position of the lead screw 17. The output end of the motor 16 passes through the spray box 1 and is connected to the lead screw 17. A discharge pipe 13 with a funnel-shaped top is provided in the middle of the bottom of the spray box 1. A downward-sloping guide plate 11 is provided above the preheating pipe 10 inside the spray box 1. A sealing door is fixedly connected to the side of the spray box 1, corresponding to the position of the slide 15, by a hinge. This allows the operator to place the steel pipe on the conveyor roller 2 for conveying and then let it enter the spray pipe 3. The spray can be sent into the spray pipe 3 through the feeding pipe 22 and evenly sprayed onto the steel pipe through the nozzle.

[0024] When spraying steel pipes, the dripping spray can be filtered and dripped to the bottom of the spray box 1. Then, the motor 16 can be started to drive the transmission block 18 on the lead screw 17 to move, so that the transmission block 18 drives the scraper 14 to move. Under the action of the transmission block 18 and the sliding block 19 on the lead screw 17 and the slide bar 20, the scraper 14 moves back and forth stably to scrape away the accumulated spray, making it easy to collect and preventing the spray from accumulating and sticking, which would cause waste. Then, the sprayed steel pipe continues to be conveyed forward to the drying pipe 9, so that the hot air blows hot air into the drying pipe 9 to heat and dry the steel pipe evenly. This prevents the direct spraying of airflow from drying the steel pipe, which would cause the hot air to blow away the spray attached to the steel pipe and affect the spraying effect. The hot air in the drying pipe 9 can be discharged into the spray box 1 through the preheating pipe 10 to preheat the steel pipe and prevent the spray at the bottom of the spray box 1 from cooling and sticking.

[0025] After drying, the steel pipe is conveyed to the air outlet block 8. The fan 4 can be started to send cold air into the air outlet block 8 through the connecting pipe 7. This can quickly cool down the dried steel pipe and prevent workers from accidentally touching the steel pipe and being burned by the high temperature. Then, the cooled end of the steel pipe is directly conveyed to the conveyor roller 2 of the subsequent process for continuous feeding and spraying.

[0026] The inner walls of both ends of the spray box 1 above the scraper 14 are provided with grooves 15, and filter cotton 12 is slidably connected between the grooves 15 so that the filter cotton 12 filters the dripping spray. When the filter cotton 12 is too saturated, the sealing door can be opened directly to remove the filter cotton 12 from the groove 15 for easy replacement.

[0027] A flow channel 21 is provided between the nozzles at the bottom of the inner side of the spray pipe 3, and a feeding pipe 22 is provided on one side of the spray pipe 3. The other end of the feeding pipe 22 extends to the outside of the spray box 1, so that when the spray pipe 3 sprays the steel pipe, the dripping spray flows out through the flow channel 21, preventing the spray from accumulating and sticking inside the spray pipe 3, which would affect the subsequent spraying effect.

[0028] When this equipment is working, the steel pipe is placed on the conveyor roller 2 for conveying and then enters the spraying pipe 3. The spray is fed into the spraying pipe 3 through the feeding pipe 22 and evenly sprayed onto the steel pipe through the nozzle. The dripping spray can be discharged through the drainage groove 21 to prevent the spray from accumulating and sticking in the spraying pipe 3, which would affect the subsequent spraying effect. At the same time, the dripping spray can be filtered through the filter cotton 12. Then, the motor 16 can be started to drive the transmission block 18 on the lead screw 17 to move. The transmission block 18 drives the scraper 14 to move. The scraper 14 moves back and forth stably under the action of the transmission block 18 and the sliding block 19 on the lead screw 17 and the slide bar 20, scraping away the accumulated spray for easy collection and preventing the spray from accumulating and sticking, which would cause waste.

[0029] The coated steel pipe continues to be conveyed forward into the drying pipe 9, where the hot air blower 5 sends hot air into the drying pipe 9 to heat and dry the steel pipe evenly. This prevents the direct airflow from drying the steel pipe, which could cause the hot air to blow away the coating agent adhering to the steel pipe, affecting the coating effect. The hot air in the drying pipe 9 can be discharged into the spray box 1 through the preheating pipe 10 to preheat the steel pipe and prevent the coating agent at the bottom of the spray box 1 from sticking when cooled. After drying, the steel pipe is conveyed to the air outlet block 8, where the fan 4 can be started to send cold air into the air outlet block 8 through the connecting pipe 7 to quickly cool the dried steel pipe and prevent workers from accidentally touching the steel pipe and being burned by the high temperature. Then, the cooled end of the steel pipe is directly conveyed to the conveyor roller 2 of the subsequent process for continuous feeding and spraying. When the filter cotton 12 is too saturated, the sealing door can be opened directly to remove the filter cotton 12 from the slide 15 for easy replacement.

Claims

1. A rust-proof coating spraying device for steel pipe surfaces, characterized in that: The spray box (1) includes a spray box (1) and a conveyor roller (2). The spray box (1) has an inlet and an outlet at the middle of its two ends, and the spray box (1) has parallel conveyor rollers (2) evenly arranged below the inlet. The spray box (1) has connecting plates (23) at the middle of the two side walls near the outlet, and spray pipes (3) are arranged between the connecting plates (23). The spray pipes (3) have nozzles evenly arranged inside. The bottom of the spray box (1) has a lead screw (17) on one side, and a transmission block (18) is provided on the lead screw (17). The other side of the spray box (1) has a slide rod (20) parallel to the lead screw (17), and a sliding block (19) is provided on the slide rod (20) corresponding to the transmission block (18). The bottom of the sliding block (19) and the transmission block (18) has a scraper (14), and the bottom of the scraper (14) has a scraper (14) at the bottom. The part is attached to the bottom of the spray box (1). A drying pipe (9) is provided at one end of the spray box (1) corresponding to the outlet. The bottom of the inner side of the drying pipe (9) is inclined near the outlet. A preheating pipe (10) is provided in the middle of the bottom of the drying pipe (9). The other end of the preheating pipe (10) is connected to the spray box (1). Air outlet blocks (8) are provided in the middle of both sides of the end of the spray box (1) away from the outlet. Air outlet holes are evenly provided on the inner side of the air outlet blocks (8). Sliding grooves (15) are provided on the inner walls of both ends of the spray box (1) above the scraper (14). Filter cotton (12) is slidably connected between the sliding grooves (15). A flow channel (21) is provided between the nozzles at the bottom of the inner side of the spray pipe (3). A feeding pipe (22) is provided on one side of the spray pipe (3). The other end of the feeding pipe (22) extends to the outside of the spray box (1).

2. The anti-rust coating spraying equipment for steel pipe surface according to claim 1, characterized in that: A fan (4) is provided at the middle position of the top of the spray box (1) near the drying pipe (9), and the air supply pipe of the fan (4) is fixedly connected to a connecting pipe (7), and the other end of the connecting pipe (7) is provided with a branch pipe connected to the air outlet block (8).

3. The anti-rust coating spraying equipment for steel pipe surface according to claim 2, characterized in that: A hot air blower (5) is provided on the spray box (1) on one side of the blower (4), and a hot air pipe (6) is provided on one side of the hot air blower (5), and the other end of the hot air pipe (6) is connected to the top of the drying pipe (9).

4. The anti-rust coating spraying equipment for steel pipe surface according to claim 1, characterized in that: A motor (16) is provided on one side of the spray box (1) at the position corresponding to the lead screw (17), and the output end of the motor (16) passes through the spray box (1) and is connected to the lead screw (17).

5. The anti-rust coating spraying equipment for steel pipe surface according to claim 1, characterized in that: The bottom of the spray box (1) is provided with a discharge pipe (13) with a funnel-shaped top at the middle position, and a downward-sloping guide plate (11) is provided above the preheating pipe (10) inside the spray box (1), and a sealing door is fixedly connected to the side of the spray box (1) corresponding to the slide groove (15) by a hinge.

Images