Flange water line and pipeline inner wall inner dip plastic processing equipment

Abstract

The present application relates to the field of plastic dipping treatment, and specifically discloses a flange water line and pipeline inner wall inner plastic dipping treatment equipment, which solves the problem that the existing plastic dipping equipment is inconvenient to be used for the universal plastic dipping of the inner walls of pipelines with different diameters, and is inconvenient to be used for the plastic dipping of the inner and outer walls of the pipeline, the flange plate and the water line, and the present application proposes the following scheme, which comprises a plastic dipping box, a hanging frame, a bottom plate, an outer sliding seat, an inner sliding seat, a sliding rod, a T-shaped plate, a telescopic piece three, a trapezoidal frame, a plastic powder nozzle and a round hole, a clamping assembly is arranged on each inner sliding seat near one side of the arc-shaped bottom plate, a centering assembly is arranged on the bottom plate, and an adjusting assembly is further arranged on the two sides of the plastic dipping box, and the adjusting assembly is used for adjusting the positions of the two hanging frames. The device can automatically spray plastic powder on the inner and outer walls of pipelines with different diameters, the flange plate and the water line at the two ends of the pipeline, so as to realize plastic dipping treatment, and improve the efficiency and multifunctionality.

Description

Technical Field

[0001] This invention relates to the field of dip coating treatment, and in particular to a device for dip coating treatment of flange watermark lines and pipe inner walls. Background Technology

[0002] Dip coating is a process that uses physical or chemical methods to uniformly adhere plastic powder or liquid coating to the surface of a workpiece, followed by heating and curing to form a dense, tough plastic coating. It imparts properties such as corrosion resistance, wear resistance, insulation, and aesthetics to the workpiece, and is widely used in hardware, building materials, automobiles, and home appliances. Internal dip coating equipment for pipes is specifically designed for dip coating the inner surfaces of pipes, primarily used to form a corrosion-resistant, wear-resistant, insulating, or other functional plastic coating (such as PE, PVC, epoxy resin, etc.) on the inner wall of the pipe. Its core principle is to uniformly adhere plastic powder or liquid coating to the inner wall of the pipe using physical or chemical methods, and then cure it with heat to form a dense coating.

[0003] Currently, the typical process for dip coating the inner wall of large-diameter pipes involves first cleaning and removing rust from the pipe, then preheating it. Once the preset temperature is reached, a container filled with plastic powder is inserted into the pipe's inner wall, and the powder is poured in. The outer side of the pipe is rotated, causing the powder to roll and coat the inner wall. Subsequent curing processes then form a protective layer. However, existing dip coating equipment is only suitable for the inner wall of pipes and cannot, when necessary, coat the flanges at both ends of the pipe and their watermark lines, resulting in limited functionality.

[0004] A processing device for hot-dip plastic-coated steel pipes, disclosed in CN213558909U, is described as follows: "A processing device for hot-dip plastic-coated steel pipes, specifically relating to the field of hot-dip plastic-coated steel pipe processing technology, includes a base and a support. The top of the base is provided with a splash-proof structure, and the top of the base is fixedly connected to the support. The top of the support is fixedly connected to a first drive motor. The output end of the first drive motor is fixedly connected to a rust-removing blade via a drive shaft. A roller is provided on the base at the bottom of the rust-removing blade, and an adjustable structure is provided on the base on one side of the roller. An auxiliary cleaning structure is provided at one end of the base. By providing a sleeve, a rod, a top plate, and a sponge, the top plate can be adjusted according to the height of the steel pipe using the telescopic relationship between the sleeve and the rod. Because the bottom of the top plate is fixedly connected to the sponge, when the steel pipe passes under the top plate after being rusted by the rust-removing blade, the sponge will wipe it, thus cleaning the outer wall of the steel pipe."

[0005] While the aforementioned technical solutions can clean the outer wall of pipes, they cannot achieve universal dip coating on the inner walls of pipes with different diameters in practical use, nor are they convenient for universal dip coating on the inner and outer walls of pipes, flanges, and watermark lines. Therefore, a dip coating treatment device for flange watermark lines and the inner wall of pipes is proposed. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies, this invention proposes a device for dip coating treatment of flange watermark lines and pipe inner walls, which solves the problem that existing dip coating equipment is not convenient for universal dip coating of pipe inner walls of different diameters, and is also not convenient for universal dip coating of pipe inner and outer walls, flanges and watermark lines.

[0007] To solve the above-mentioned technical problems, the basic technical solution proposed by this invention is as follows:

[0008] A device for treating the watermark line on a flange and the inner wall of a pipe with plastic coating includes a plastic coating tank. Hanging frames are provided on both sides of the plastic coating tank, and a base plate is connected to the bottom of each hanging frame. An outer sliding seat is provided on the side of the base plate furthest from each other, while an inner sliding seat is provided on the side closest to each other. A sliding rod connects the outer and inner sliding seats. A T-shaped plate is slidably fitted on the sliding rod, and a telescopic component is installed on the outer sliding seat. The telescopic component is connected to the T-shaped plate, and trapezoidal frames are symmetrically slidably arranged on both the upper and lower sides of the T-shaped plate. Multiple powder coating nozzles are installed at equal intervals within the trapezoidal frames.

[0009] The outer and inner slides are also provided with circular holes for the T-shaped plate to pass through. The inner slides on the two arc-shaped sides of the base plate are each provided with a clamping assembly for clamping the pipe. The base plate is provided with a centering alignment assembly for keeping the T-shaped plate always in the same plane as the pipe axis. The two sides of the plastic-impregnated box are also provided with adjustment assemblies for adjusting the position of the two side hanging frames.

[0010] Preferably, sliding rods are arranged parallel to each other on both sides of the circular hole, and sleeves are connected to both sides of the T-shaped plate, with each sleeve slidably fitted onto the outside of the sliding rod on its respective side.

[0011] Preferably, the upper and lower sides of both ends of the T-shaped plate are connected to T-shaped limiting rods, and the two sides of the trapezoidal frame are respectively slidably sleeved on the outside of the T-shaped limiting rods on both sides. A spring sleeved on the outside of the T-shaped limiting rods connects the trapezoidal frame and the T-shaped plate.

[0012] Preferably, the T-shaped plate is connected to a connecting vertical plate on the side near the outer slide block, and the output end of the telescopic component three is connected to the connecting vertical plate. The T-shaped plate and the trapezoidal frames that slide on its upper and lower sides slide within the round hole and the pipe.

[0013] Preferably, the adjustment assembly includes a bracket, a guide rail, a guide seat, a telescopic component, and a rotating rod. The bracket is connected to both sides of the hanging frame. Two guide rails are provided and are respectively connected to the two brackets on opposite sides. The guide seat is slidably connected inside the guide rail. The upper end of the telescopic component is connected to the guide seat, while the lower output end is located below the guide rail and is rotatably connected to a rotating rod. The lower end of the rotating rod is rotatably connected to the upper end of the hanging frame.

[0014] Preferably, the centering and alignment component includes a slide rail, a sleeve frame, a carriage, and a sleeve block. The slide rails are arranged in two pairs on each base plate, front and back, and are connected to each other in parallel on the base plate. The sleeve frame is slidably fitted on the outside of the slide rail, and a sleeve frame is slidably fitted on both ends of each slide rail. The carriage is connected to the sleeve frame, and the sleeve block is slidably fitted on the outside of the carriage. The outer slide block and the inner slide block are respectively connected to the corresponding sleeve blocks on their front and back sides.

[0015] Preferably, the clamping assembly includes a rotating plate, a connecting seat, and an arc-shaped clamping seat. The rotating plate is connected to the upper and lower sides of the inner slide away from the outer slide. The connecting seat is connected to the end of the rotating plate away from the inner slide, and the lower connecting seat is connected to the base plate. The upper connecting seat is connected to the hanging frame by a telescopic component. The arc-shaped clamping seat is connected to the connecting seat, and the upper and lower arc-shaped clamping seats respectively clamp the upper and lower sides of the pipe.

[0016] Preferably, the arc-shaped bracket is composed of two arc-shaped frames connected together. Flanges are connected to both ends of the pipe, and watermark lines are connected to the flanges. The arc-shaped frames on both sides are located on both sides of the flanges, and the arc-shaped frame closer to the hanging frame does not contact the pipe.

[0017] Preferably, the arc-shaped frame away from the hanging frame has openings on both sides, and a motor is installed on both sides of each opening. The output end of the motor is connected to a rubber roller, which is located inside the opening and is in rolling contact with the outer side of the pipe.

[0018] Preferably, the trapezoidal frame has trapezoidal front and rear sides and a groove in the middle. Each of the powder nozzles is installed on the inner wall of the groove. The connecting seats on the upper and lower sides are connected to top seats on one side close to each other. The top seats are in contact with and slide against the surface of the trapezoidal frame. The groove and the T-shaped plate are also provided with corresponding guide holes.

[0019] The beneficial effects of this invention are:

[0020] 1. The technical solution of the present invention controls the adjustment components on both sides to drive the two hanging frames to move closer to each other until the distance between the two hanging frames can meet the requirements of the length of the pipe to be dipped in plastic. Then the pipe can be transferred from the hoisting and transfer equipment to the arc-shaped bracket of the lower connecting seat. Then the telescopic component two is activated to drive the upper connecting seat to move to the lower connecting seat, thereby clamping the preheated pipe. This allows for the clamping of pipes of various sizes. At the same time, the arc-shaped bracket is also equipped with a rubber roller driven by a motor, which can drive the pipe to rotate, facilitating the subsequent dip-coating operation.

[0021] 2. The technical solution of the present invention is that both the upper and lower connecting seats are rotatably connected to the inner slide seat through a rotating plate, and the inner slide seat is slidably connected to the slide frame through a sleeve block. This allows the inner slide seat to always be in the middle of the upper and lower connecting seats when the telescopic component 2 moves the upper connecting seat down towards the lower connecting seat. At the same time, the inner slide seat is also connected to the outer slide seat through a slide rod. The outer slide seat is connected to the telescopic component 3, which drives the T-shaped plate sliding on the slide rod. In this way, when the pipe is clamped, the extension of the telescopic component 3 can drive the T-shaped plate to extend into the pipe. The plastic powder nozzles in the trapezoidal frame slidably connected on the upper and lower sides of the T-shaped plate spray plastic powder onto the inner wall of the pipe. The heat of the pipe can melt the plastic powder to achieve dip coating. Then, through subsequent curing and other processing steps, the finished product can be formed.

[0022] 3. The technical solution of this invention has a top seat connected to each of the upper and lower connecting seats on one side close to each other. Each top seat slides against the surface of the trapezoidal frame on its own side. When the diameter of the pipe clamped on the arc-shaped seat is very small, the distance between the upper and lower connecting seats will be very close, and the distance between the upper and lower top seats will also be very small. At this time, when the T-shaped plate is driven to enter the pipe between the upper and lower connecting seats, the inclined surface of one side of the trapezoidal frame can abut against the top seat, so that the top seat drives the trapezoidal frame to move closer to the T-shaped plate, so as to ensure that the trapezoidal frame can smoothly enter the pipe with a small diameter and have a certain distance from its inner wall to facilitate the spraying of plastic powder through the powder nozzle. At the same time, when it is necessary to dip the outer side of the pipe, flange, and watermark line, the height of the hanging frame can be lowered by adjusting the component so that the pipe can be immersed in the plastic powder, which improves the versatility and can also dip the inner and outer sides of the pipe, as well as the flange and watermark line. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a cross-sectional view of the front structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the plastic-impregnated box of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the single-sided hanging frame and pipe clamp of the present invention;

[0027] Figure 5 This is a schematic diagram of the single-sided hanging frame and related structures of the present invention;

[0028] Figure 6 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 7 for Figure 2 Enlarged view of point B in the middle;

[0030] Figure 8 This is a schematic diagram of the internal structure of the hanging frame and the mounting components of the present invention;

[0031] Figure 9 This is a schematic diagram of the internal structure of the hanging frame of the present invention;

[0032] Figure 10 This is a schematic diagram of the card-mounted component of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Plastic-impregnated box; 2. Bracket; 3. Guide rail; 4. Guide seat; 5. Telescopic component one; 6. Rotating rod; 7. Hanging frame; 8. Base plate; 9. Slide rail; 10. Sleeve frame; 11. Slide carriage; 12. Sleeve block; 13. Outer slide seat; 14. Inner slide seat; 15. Round hole; 16. Telescopic component two; 17. Connecting seat; 18. Rotating plate; 19. Top seat; 20. Arc-shaped card seat; 21. Slide rod; 22. Sleeve; 23. T-shaped plate; 24. T-shaped limit rod; 25. Trapezoidal frame; 26. Spring; 27. Powder nozzle; 28. Guide hole; 29. ​​Connecting vertical plate; 30. Telescopic component three; 31. Opening; 32. Motor; 33. Rubber roller; 34. Pipe; 35. Flange; 36. Water ripple line; 37. Arc-shaped frame; 38. Tank body. Detailed Implementation

[0035] The following will be combined with the appendix Figure 1 To be continued Figure 10 The technical solutions in the embodiments of the present invention have been clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1:

[0037] like Figures 1-10As shown, the present invention discloses a flange watermark line and pipe inner wall dip coating treatment equipment, including a dip coating box 1, with hanging frames 7 on both sides of the dip coating box 1, and a base plate 8 connected to the bottom of the hanging frames 7. The base plates 8 on both sides are provided with an outer slide seat 13 on the side away from each other, and an inner slide seat 14 on the side closer to each other. A slide rod 21 is connected between the outer slide seat 13 and the inner slide seat 14. A T-shaped plate 23 is slidably sleeved on the slide rod 21. An expansion joint 30 is installed on the outer slide seat 13. The expansion joint 30 is connected to the T-shaped plate 23. Trapezoidal frames 25 are symmetrically slidably arranged on the upper and lower sides of the T-shaped plate 23. Multiple plastic powder nozzles 27 are installed at equal intervals in the trapezoidal frames 25.

[0038] The plastic impregnation tank 1 contains plastic powder, and each plastic powder nozzle 27 is connected to a pump body via a hose. The input end of the pump body is also connected to a hose and inserted into the plastic powder in the plastic impregnation tank 1. This allows the plastic powder nozzle 27 to directly draw out the plastic powder in the plastic impregnation tank 1 when spraying the plastic powder. At the same time, during the process of spraying the plastic powder, excess plastic powder can fall back into the plastic impregnation tank 1 to achieve the recycling of the plastic powder.

[0039] The outer slide 13 and the inner slide 14 are also provided with round holes 15 for the T-shaped plate 23 to pass through. The inner slide 14 of the two base plates 8 are arc-shaped and close to one side, and each is provided with a clamping component. The clamping component is used to clamp the pipe 34. The base plate 8 is provided with a centering alignment component. The centering alignment component is used to keep the T-shaped plate 23 always in the same plane as the axial direction of the pipe 34. The two sides of the plastic-impregnated box 1 are also provided with adjustment components. The adjustment components are used to adjust the position of the two side hanging frames 7.

[0040] Parallel sliding rods 21 are arranged on both sides of the round hole 15. Sleeves 22 are connected to both sides of the T-shaped plate 23. Each sleeve 22 is slidably sleeved on the outside of the sliding rod 21 on its respective side. That is, the sliding rod 21 can connect the outer sliding seat 13 and the inner sliding seat 14 on both sides of each hanging frame 7 into one piece. When the inner sliding seat 14 is driven to slide, it can drive the outer sliding seat 13 to slide synchronously. The sleeve 22 can stabilize the sliding of the T-shaped plate 23 on the sliding rod 21.

[0041] T-shaped limiting rods 24 are connected to the upper and lower sides of both ends of the T-shaped plate 23. The two sides of the trapezoidal frame 25 are slidably sleeved on the outer sides of the T-shaped limiting rods 24. A spring 26 sleeved on the outer side of the T-shaped limiting rod 24 connects the trapezoidal frame 25 and the T-shaped plate 23, so that the two ends of the trapezoidal frame 25 that are slidably connected to the upper and lower sides of the T-shaped plate 23 can be slidably sleeved on the outer side of the T-shaped limiting rod 24. The trapezoidal frame 25 on the upper and lower sides can also slide away from the T-shaped plate 23 under the elastic force of the spring 26 sleeved on the outer side of the respective T-shaped limiting rod 24 until it is limited by the T-shaped end of the T-shaped limiting rod 24.

[0042] A connecting vertical plate 29 is connected to the side of the T-shaped plate 23 near the outer slide block 13. The output end of the telescopic component 30 is connected to the connecting vertical plate 29. The T-shaped plate 23 and the trapezoidal frames 25 sliding on its upper and lower sides slide within the circular hole 15 and the pipe 34, allowing the T-shaped plate 23 to slide stably between the front and rear slide rods 21 through the sliding engagement of the sleeve 22 and the slide rod 21 under the drive of the telescopic component 30. At the same time, when the telescopic component 30 extends, the end of the T-shaped plate 23 near the inner slide block 14 will... The inner slide 14 moves away from the outer slide 13 through the round hole 15. When the inner slide 14 in both hanging frames 7 clamps the two ends of the preheated pipe 34 through the clamping assembly, the T-shaped plates 23 on both sides can enter the pipe 34 under the drive of the telescopic component 30. The plastic powder is sprayed onto the inner wall of the pipe 34 through the plastic powder nozzle 27 in the trapezoidal frame 25. At the same time, plastic powder can also be sprayed onto the flange 35 connected to both ends of the pipe 34 and the water ripple line 36 on the flange 35.

[0043] Furthermore, during the process of spraying powder from the powder nozzle 27, the telescopic components 30 on both sides can reciprocate within a small range. That is, the telescopic components 30 can form a distance of 1.5 times between adjacent powder nozzles 27, so that when the powder nozzle 27 sprays powder in the pipe 34, it can slide back and forth along a square parallel to the axial direction of the pipe 34, so as to uniformly and efficiently spray powder onto the inner wall of the pipe 34 and the flange 35 and water ripple line 36 on it.

[0044] Example 2:

[0045] like Figures 1-10 As shown, the present invention discloses a flange watermark line and pipe inner wall dip-coating equipment. Compared with Embodiment 1, this embodiment discloses the structure of the adjustment component.

[0046] The adjustment assembly includes a bracket 2, a guide rail 3, a guide seat 4, a telescopic component 5, and a rotating rod 6. The bracket 2 is connected to both sides of the hanging frame 7. There are two guide rails 3, which are respectively connected to the two brackets 2 on one side of each other. The guide seat 4 is slidably connected inside the guide rail 3. The upper end of the telescopic component 5 is connected to the guide seat 4, while the lower output end is located below the guide rail 3 and is rotatably connected to the rotating rod 6. The lower end of the rotating rod 6 is rotatably connected to the upper end of the hanging frame 7.

[0047] The distance between the two hanging frames 7 can be adjusted by sliding the inner guide seat 4 driven by the guide rail 3, so as to change the distance between the clamping components on the inner slide seat 14 on the two hanging frames 7 to adapt to the clamping requirements of pipes 34 of different lengths. At the same time, after the plastic powder is sprayed on the inner wall of the pipe 34, some plastic powder may remain in the pipe 34. At this time, the telescopic component 5 on one side can be driven to extend or retract, and the rotating rod 6 connected between the telescopic components 5 on both sides and the hanging frame 7 can drive the two hanging frames 7 to form a height difference, so as to tilt the pipe 34 clamped between the two hanging frames 7, so as to pour the residual plastic powder in the pipe 34 into the plastic-impregnated box 1 for recycling.

[0048] Example 3:

[0049] like Figures 1-10 As shown, this invention discloses a flange watermark line and a device for internal plastic coating treatment of the inner wall of a pipe. Compared with Embodiment 2, this embodiment discloses the structure of the clamping assembly.

[0050] The clamping assembly includes a rotating plate 18, a connecting seat 17, and an arc-shaped clamping seat 20. The rotating plate 18 is connected to the upper and lower sides of the inner slide 14 away from the outer slide 13. The connecting seat 17 is connected to the end of the rotating plate 18 away from the inner slide 14, and the lower connecting seat 17 is connected to the base plate 8. The upper connecting seat 17 is connected to the hanging frame 7 by a telescopic component 16. The arc-shaped clamping seat 20 is connected to the connecting seat 17. The upper and lower arc-shaped clamping seats 20 respectively clamp the upper and lower sides of the pipe 34.

[0051] When it is necessary to clamp the preheated pipe 34, the two ends of the preheated pipe 34 are transferred and supported by the transfer equipment to the arc-shaped clamping seats 20 connected to the lower connecting seats 17 of the two side hanging frames 7 respectively. Then, the telescopic component 2 16 is activated to drive the upper connecting seat 17 to move down, thereby driving the upper arc-shaped clamping seat 20 to move closer to the lower arc-shaped clamping seat 20, so as to achieve clamping of the upper and lower sides of the pipe 34.

[0052] The arc-shaped clamp 20 is composed of two arc-shaped frames 37 connected together. Flanges 35 are connected to both ends of the pipe 34, and watermark lines 36 are connected to the flanges 35. The arc-shaped frames 37 on both sides are located on opposite sides of the flanges 35, and the arc-shaped frame 37 on the side closer to the hanging frame 7 does not contact the pipe 34. This allows the two arc-shaped clamps 20 on the same side to clamp one end of the pipe 34 through the arc-shaped frame 37 on one side, while the arc-shaped frame 37 on the other side does not contact the pipe 34. When the flange 35 and watermark 36 at one end of the pipe 34 are in contact, they will be positioned between the two arc-shaped frames 37 to avoid affecting the clamping of the pipe 34. At the same time, during the process of spraying plastic powder onto the inner wall of the pipe 34 through the plastic powder nozzle 27, the plastic powder will also be sprayed onto the flange 35 and watermark 36 at both ends of the pipe 34. Thus, not only can the inner wall of the pipe 34 be sprayed with plastic powder to achieve dip coating, but the flange 35 and watermark 36 at both ends of the pipe 34 can also be sprayed with plastic powder to achieve dip coating.

[0053] On both sides of the arc-shaped frame 37 away from the hanging frame 7, there are openings 31. Each opening 31 has a motor 32 installed on both sides, and the output end of the motor 32 is connected to a rubber roller 33. The rubber roller 33 is inside the opening 31 and rolls with the outer side of the pipe 34. When the pipe 34 is clamped by the arc-shaped clamp 20, the rubber roller 33 is in direct contact with the outer side of the pipe 34. When the T-shaped plate 23, trapezoidal frame 25 and powder nozzle 27 are inside the pipe 34, the motor 32 drives the rubber roller 33 to rotate, which drives the pipe 34 to rotate. This makes the powder nozzle 27 not rotate, but the pipe 34 rotates and evenly receives the powder sprayed by the powder nozzle 27.

[0054] The trapezoidal frame 25 has trapezoidal shapes on both the front and back sides, and a groove 38 is opened in the middle. Each powder nozzle 27 is installed on the inner wall of the groove 38. The connecting seats 17 on the upper and lower sides are close to each other and are connected to the top seat 19. The top seat 19 is in contact with the surface of the trapezoidal frame 25 and slides against it. The groove 38 and the T-shaped plate 23 are also provided with corresponding guide holes 28.

[0055] When the diameter of the pipe 34 mounted on the arc-shaped bracket 20 is very small, the distance between the upper and lower connecting seats 17 will be very close, and the distance between the upper and lower top seats 19 will also become very small. At this time, when the T-shaped plate 23 is driven to enter the pipe 34 between the upper and lower connecting seats 17, the inclined surface on one side of the trapezoidal frame 25 can abut against the top seat 19, so that the top seat 19 drives the trapezoidal frame 25 to move closer to the T-shaped plate 23, so as to ensure that the trapezoidal frame 25 can smoothly enter the pipe 34 with a very small diameter and have a certain distance from its inner wall, so as to facilitate the spraying of plastic powder through the plastic powder nozzle 27.

[0056] Furthermore, when it is necessary to dip the pipe 34 and the outer sides of its flanges 35 and watermark lines 36 into the plastic, the height of the lifting frame 7 can be lowered by adjusting the component so that the pipe 34 can be immersed in the plastic powder. During the process, the pipe 34 can also rotate to accelerate the adhesion efficiency of the plastic powder on the outer side of the pipe 34, improve the versatility, and at the same time, it can also dip the inner and outer sides of the pipe 34, as well as the flanges 35 and watermark lines 36 into the plastic.

[0057] Example 4:

[0058] like Figures 1-10 As shown, the present invention discloses a flange watermark line and pipe inner wall dip-coating equipment. Compared with Embodiment 3, this embodiment discloses the structure of the centering alignment component.

[0059] The centering and alignment component includes a slide rail 9, a sleeve frame 10, a carriage 11, and a sleeve block 12. There are two slide rails 9 on each base plate 8, one at the front and one at the back, and they are connected to each other in parallel on the base plate 8. The sleeve frame 10 is slidably fitted on the outside of the slide rail 9, and the two ends of each slide rail 9 are slidably fitted with the sleeve frame 10. The carriage 11 is connected to the sleeve frame 10. The sleeve block 12 is slidably fitted on the outside of the carriage 11. The outer slide seat 13 and the inner slide seat 14 are respectively connected to the corresponding sleeve blocks 12 on their front and rear sides.

[0060] When the height of the upper connecting seat 17 is adjusted by the telescopic component 2 16 to adjust the downward movement of the upper arc-shaped clamp 20, and when the lower arc-shaped clamp 20 is used to clamp the pipe 34, the lower connecting seat 17 remains stationary while the upper connecting seat 17 moves. At the same time, the inner slide 14 is pushed by the rotating plate 18 to slide along the slide rail 9 through the sleeve frame 10, and the inner slide 14 can also slide on the slide frame 11 through the sleeve blocks 12 on both sides. The inner slide 14 and the outer slide 13 are connected by a sliding rod 21, so that the sliding of the inner slide 14 can also drive the outer slide 13 to slide synchronously, and both of them are always in the middle position between the upper and lower connecting seats 17 and the upper and lower arc-shaped clamp 20. That is, the T-shaped plate 23 can be in the axial direction of the pipe 34 clamped by the upper and lower arc-shaped clamp 20, so as to facilitate the telescopic component 3 30 to drive the T-shaped plate 23, the trapezoidal frame 25 and the powder nozzle 27 into the pipe 34.

[0061] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A device for treating the watermark line on a flange and the inner wall of a pipe by dip coating, comprising a dip coating tank (1), with hanging frames (7) on both sides of the dip coating tank (1), and a base plate (8) connected to the bottom of the hanging frames (7), characterized in that, Both sides of the base plate (8) are provided with an outer slide (13) on the side away from each other, and an inner slide (14) on the side close to each other. A slide rod (21) is connected between the outer slide (13) and the inner slide (14). A T-shaped plate (23) is slidably sleeved on the slide rod (21). A telescopic component three (30) is installed on the outer slide (13). The telescopic component three (30) is connected to the T-shaped plate (23). A trapezoidal frame (25) is symmetrically slidably arranged on the upper and lower sides of the T-shaped plate (23). Multiple powder nozzles (27) are installed at equal intervals in the trapezoidal frame (25). The outer slide (13) and inner slide (14) are also provided with round holes (15) for the T-shaped plate (23) to pass through. The inner slide (14) of the two base plates (8) are provided with clamping components on the side close to each other. The clamping components are used to clamp the pipe (34). The base plate (8) is provided with a centering alignment component. The centering alignment component is used to keep the T-shaped plate (23) always in the same plane as the axial direction of the pipe (34). The plastic-impregnated box (1) is also provided with adjustment components on both sides. The adjustment components are used to adjust the position of the hanging frames (7) on both sides. The centering and alignment component includes a slide rail (9), a sleeve frame (10), a slide carriage (11), and a sleeve block (12). The slide rail (9) is provided in two positions on each base plate (8) and is connected to the base plate (8) in parallel. The sleeve frame (10) is slidably fitted on the outside of the slide rail (9), and the sleeve frame (10) is slidably fitted on both ends of each slide rail (9). The slide carriage (11) is connected to the sleeve frame (10). The sleeve block (12) is slidably fitted on the outside of the slide carriage (11). The outer slide seat (13) and the inner slide seat (14) are respectively connected to the sleeve blocks (12) on their front and rear sides. The mounting assembly includes a rotating plate (18), a connecting seat (17), and an arc-shaped mounting bracket (20). The rotating plate (18) is connected to the upper and lower sides of the inner slide (14) away from the outer slide (13). The connecting seat (17) is connected to the end of the rotating plate (18) away from the inner slide (14). The lower connecting seat (17) is connected to the base plate (8). The upper connecting seat (17) is connected to the hanging frame (7) by a telescopic component (16). The arc-shaped mounting bracket (20) is connected to the connecting seat (17). The upper and lower arc-shaped mounting brackets (20) respectively clamp the upper and lower sides of the pipe (34).

2. The flange watermark line and pipe inner wall dip-coating equipment according to claim 1, characterized in that, The circular hole (15) has parallel sliding rods (21) on both sides, and the T-shaped plate (23) has sleeves (22) connected to both sides. Each sleeve (22) is slidably sleeved on the outside of the sliding rod (21) on its respective side.

3. The flange watermark line and pipe inner wall dip-coating equipment according to claim 1, characterized in that, The upper and lower sides of the T-shaped plate (23) are connected to T-shaped limiting rods (24). The two sides of the trapezoidal frame (25) are respectively slidably sleeved on the outside of the T-shaped limiting rods (24) on both sides. A spring (26) sleeved on the outside of the T-shaped limiting rods (24) connects the trapezoidal frame (25) and the T-shaped plate (23).

4. The flange watermark line and pipe inner wall dip-coating equipment according to claim 3, characterized in that, The T-shaped plate (23) is connected to a connecting vertical plate (29) on the side near the outer slide (13). The output end of the telescopic component three (30) is connected to the connecting vertical plate (29). The T-shaped plate (23) and the trapezoidal frames (25) that slide on its upper and lower sides slide within the round hole (15) and the pipe (34).

5. The flange watermark line and pipe inner wall dip-coating equipment according to claim 1, characterized in that, The adjustment assembly includes a bracket (2), a guide rail (3), a guide seat (4), a telescopic component (5), and a rotating rod (6). The bracket (2) is connected to both sides of the hanging frame (7). There are two guide rails (3), which are respectively connected to the two brackets (2) on one side of each other. The guide seat (4) is slidably connected in the guide rail (3). The upper end of the telescopic component (5) is connected to the guide seat (4), and the lower output end is located below the guide rail (3) and is rotatably connected to the rotating rod (6). The lower end of the rotating rod (6) is rotatably connected to the upper end of the hanging frame (7).

6. The flange watermark line and pipe inner wall dip-coating equipment according to claim 1, characterized in that, The arc-shaped bracket (20) is composed of two arc-shaped frames (37) connected together. The pipe (34) is connected to flanges (35) at both ends, and water ripple lines (36) are connected on the flanges (35). The arc-shaped frames (37) on both sides are located on both sides of the flanges (35), and the arc-shaped frame (37) on the side closer to the hanging frame (7) does not contact the pipe (34).

7. The flange watermark line and pipe inner wall dip-coating equipment according to claim 6, characterized in that, An opening (31) is provided on both sides of the arc frame (37) away from the hanging frame (7). A motor (32) is installed on both sides of each opening (31), and a rubber roller (33) is connected to the output end of the motor (32). The rubber roller (33) is located inside the opening (31) and is in rolling connection with the outer side of the pipe (34).

8. The flange watermark line and pipe inner wall dip-coating equipment according to claim 1, characterized in that, The trapezoidal frame (25) is trapezoidal on both the front and back sides, and a groove (38) is provided in the middle. Each of the plastic powder nozzles (27) is installed on the inner wall of the groove (38). The connecting seats (17) on the upper and lower sides are connected to a top seat (19) on one side close to each other. The top seat (19) is in contact with the surface of the trapezoidal frame (25) and slides against it. The groove (38) and the T-shaped plate (23) are also provided with corresponding guide holes (28).

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