Epoxy powder spraying device in water delivery bell and spigot steel pipe

Abstract

The utility model discloses a device for spraying epoxy powder in a water delivery bell and spigot steel pipe, which comprises a spraying table, a heat preservation barrel, a heating plate group, a placing frame, a moving assembly, a spraying nozzle, a collecting box and a collecting assembly, the heat preservation barrel is movably arranged on the upper side of the spraying table, the heating plate group is arranged on the inner side wall of the heat preservation barrel, so that the inside of the heat preservation barrel can be conveniently heated; the spraying device comprises a heat preservation barrel and a plurality of spraying nozzles, the heat preservation barrel is arranged on the two sides of the heat preservation barrel, so that the water conveying bell and spigot steel pipe can be kept at a proper spraying temperature, the two containing frames are symmetrically arranged on the two sides of the heat preservation barrel, the moving assembly is arranged between the heat preservation barrel and the two containing frames, and the spraying nozzles are arranged on one side of the heat preservation barrel. Epoxy powder can be sprayed to the interior of the water delivery bell and spigot steel pipe in all directions, the collecting box is located on one side of the multiple spraying nozzles, and the collecting assembly is arranged on the collecting box. According to the epoxy powder spraying device in the water conveying bell and spigot steel pipe, the epoxy powder at the pipe orifice of the water conveying bell and spigot steel pipe can be conveniently collected and recycled.

Description

Technical Field

[0001] This utility model relates to the field of spraying device technology, specifically to an epoxy powder spraying device for the inside of a water supply socket steel pipe. Background Technology

[0002] Water supply spigot and socket steel pipe is a type of steel pipe used for transporting water. Its joint type is spigot and socket. One end of the spigot and socket steel pipe is a socket and the other end is a spigot. The socket is a pipe fitting with an inner diameter slightly larger than the outer diameter of the spigot. After the spigot is inserted into the socket, a sealing connection is achieved through sealing material. In order to improve the service life of water supply spigot and socket steel pipe, epoxy powder is sprayed inside the water supply spigot and socket steel pipe to provide a tough and smooth protective coating for corrosion protection on the inner wall of the water supply spigot and socket steel pipe.

[0003] In existing technologies, an electric cylinder is typically used to push the nozzle into the interior of the water supply socket steel pipe to spray epoxy powder. While this method facilitates corrosion protection of the inside of the water supply socket steel pipe, some epoxy powder melts and drips onto the pipe opening during spraying, making it difficult to recover and causing large areas of powder melt scars, which affects the spraying quality of the water supply socket steel pipe. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an epoxy powder coating device for the inside of a water supply socket steel pipe, thereby solving the problem mentioned in the background technology of the inconvenience in recycling part of the epoxy powder at the pipe opening.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an epoxy powder coating device for the inner surface of a water supply socket steel pipe, comprising a spraying table, an insulation cylinder, a heating plate assembly, a placement rack, a moving assembly, a spray nozzle, a collection box, and a collection assembly;

[0007] The heat insulation cylinder is movably positioned on the upper side of the spraying station;

[0008] The heating plate assembly is installed on the inner wall of the insulation cylinder;

[0009] The placement rack is provided in two parts, and the two placement racks are symmetrically arranged on both sides of the heat preservation cylinder;

[0010] The movable component is disposed between the heat-insulating cylinder and the two placement racks;

[0011] The spray nozzles are configured in multiple ways, and all of the spray nozzles are located on one side of the insulation cylinder;

[0012] The collection box is located on one side of multiple spray nozzles;

[0013] The collection component is mounted on the collection box.

[0014] Furthermore, the collection components include:

[0015] A collection cylinder is located on one side of the collection box, and a collection groove is provided on the collection cylinder;

[0016] A collection tube, wherein multiple collection tubes are arranged in a circumferential array and connected between the collection cylinder and the collection box;

[0017] A filter screen, which is detachably connected to the collection box;

[0018] A protective door is detachably connected to the collection box, and multiple connecting posts are fixedly connected between the protective door and the filter screen.

[0019] A suction fan is installed on the protective door, and the output end of the suction fan is connected to the protective door.

[0020] Furthermore, the mobile components include:

[0021] An electric push rod is installed at the top of the insulation cylinder;

[0022] A movable plate, which is fixedly connected to the output end of the electric push rod and is slidably disposed on the upper side of the spraying table;

[0023] A placement rod is provided, wherein multiple placement rods are respectively fixedly connected between the movable plate and the two placement frames;

[0024] The support blocks are configured as two, and the two support blocks are symmetrically connected to the bottom end of the movable plate. The spraying table is provided with support grooves for the support blocks to slide.

[0025] Furthermore, a spray pipe is connected between the multiple spray nozzles, a valve is provided on the spray pipe, and both the collection box and the collection cylinder are provided with through ports that match the spray pipe.

[0026] Furthermore, a support frame is fixedly connected to the top of the spraying station, and the support frame has a support groove for supporting the collection cylinder.

[0027] Furthermore, multiple card plates are fixedly connected to the protective door, and multiple card cylinders are fixedly connected to the outer wall of the collection box, with card slots on the card cylinders that match the card plates.

[0028] Compared with the prior art, this utility model provides an epoxy powder coating device for the inner surface of a water supply socket steel pipe, which has the following beneficial effects:

[0029] 1. In this utility model, two placement frames facilitate stable support for the water supply socket steel pipe. The combination of the insulation cylinder and the heating plate group can maintain a suitable spraying temperature for the water supply socket steel pipe, thereby improving the spraying effect of epoxy powder on the water supply socket steel pipe.

[0030] 2. In this utility model, the movable component facilitates the pushing of the insulation cylinder and the placement rack on the upper side of the spraying table, which in turn facilitates the pushing of the water supply socket steel pipe, thereby allowing the spraying position of the water supply socket steel pipe to be adjusted.

[0031] 3. In this utility model, multiple spray nozzles facilitate the all-round spraying of epoxy powder inside the water supply socket steel pipe, and the collection box and collection components facilitate the collection and recycling of epoxy powder at the pipe opening of the water supply socket steel pipe. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of this application;

[0033] Figure 2 For this application Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0034] Figure 3 This is a schematic diagram of the structure of the collection tube, support frame, and clamping tube in this application.

[0035] Figure 4 This is a cross-sectional structural diagram showing the combination of the collection box, protective door, and pallet in this application.

[0036] In the diagram: 1. Spraying station; 2. Insulation cylinder; 3. Heating plate assembly; 4. Placement rack; 5. Spray nozzle; 6. Collection box; 7. Collection cylinder; 8. Collection pipe; 9. Filter screen; 10. Protective door; 11. Suction fan; 12. Electric push rod; 13. Moving plate; 14. Support block; 15. Spray pipe; 16. Support frame; 17. Clamping plate; 18. Clamping cylinder. Detailed Implementation

[0037] 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.

[0038] Please see Figures 1 to 4 An epoxy powder coating device for the inside of a water supply socket steel pipe includes a spraying table 1, an insulation cylinder 2, a heating plate assembly 3, a placement frame 4, a moving component, spray nozzles 5, a collection box 6, and a collection component. The insulation cylinder 2 is movably positioned on the upper side of the spraying table 1. The heating plate assembly 3 is installed on the inner wall of the insulation cylinder 2 to facilitate heating of the inside of the insulation cylinder 2, so as to maintain a suitable spraying temperature for the water supply socket steel pipe. Two placement frames 4 are provided, which are symmetrically arranged on both sides of the insulation cylinder 2. The moving component is located between the insulation cylinder 2 and the two placement frames 4. Multiple spray nozzles 5 are provided, which are all located on one side of the insulation cylinder 2, and can spray epoxy powder into the inside of the water supply socket steel pipe from all directions. The collection box 6 is located on one side of the multiple spray nozzles 5, and the collection component is set on the collection box 6.

[0039] Specifically, the collection components include a collection cylinder 7, a collection pipe 8, a filter screen 9, a protective door 10, and a suction fan 11. The collection cylinder 7 is located on one side of the collection box 6. A support frame 16 is fixedly connected to the top of the spray table 1. The support frame 16 has a support groove for supporting the collection cylinder 7, which can stably support the collection cylinder 7. The collection cylinder 7 also has a collection groove to facilitate the collection of epoxy powder. Multiple collection pipes 8 are arranged in a circumferential array and connected between the collection cylinder 7 and the collection box 6. The filter screen 9 is detachably connected to the collection box 6 and can filter the epoxy powder to reduce the amount of epoxy powder entering the suction fan 11. The protective door 10 is detachably connected to the collection box 6. Multiple connecting columns are fixedly connected between the protective door 10 and the filter screen 9, which can make the protective door 10 move the filter screen 9 stably. The suction fan 11 is installed on the protective door 10, and the output end of the suction fan 11 is connected to the protective door 10.

[0040] Multiple card plates 17 are fixedly connected to the protective door 10, and multiple card cylinders 18 are fixedly connected to the outer side wall of the collection box 6. The card cylinders 18 are provided with card slots that match the card plates 17. When the protective door 10 approaches the collection box 6, the multiple card plates 17 will enter the multiple card slots respectively, so that the protective door 10 will be stably installed on the collection box 6.

[0041] The suction fan 11 is started, causing multiple collection pipes 8 to adsorb epoxy powder, which is then collected into the collection box 6. When the epoxy powder in the collection box 6 needs to be processed, the protective door 10 on the collection box 6 can be removed.

[0042] Specifically, the moving component includes an electric push rod 12, a moving plate 13, a placement rod, and a support block 14. The electric push rod 12 is installed on the top of the insulation cylinder 2. The moving plate 13 is fixedly connected to the output end of the electric push rod 12 and is slidably disposed on the upper side of the spraying table 1. Multiple placement rods are provided, and multiple placement rods are fixedly connected between the moving plate 13 and two placement frames 4 respectively. Two support blocks 14 are provided, and the two support blocks 14 are symmetrically connected to the bottom end of the moving plate 13. The spraying table 1 is provided with a support groove for the support blocks 14 to slide. When the moving plate 13 moves, the two support blocks 14 will move simultaneously in the support groove to increase the stability of the moving plate 13 moving on the upper side of the spraying table 1.

[0043] When the electric push rod 12 is activated, it pushes the moving plate 13, which in turn moves the insulation cylinder 2 and the placement rack 4, thereby moving the water supply socket steel pipe and adjusting the spraying position of the water supply socket steel pipe.

[0044] Specifically, multiple spray nozzles 5 are connected by a spray pipe 15, which is connected to the equipment that provides epoxy powder. The spray pipe 15 is equipped with a valve, and the collection box 6 and the collection cylinder 7 are both provided with through-holes that match the spray pipe 15. This allows for the stable installation of the spray pipe 15. At the same time, opening the valve allows the epoxy powder to pass through the spray pipe 15 into the multiple spray nozzles 5, so as to spray epoxy powder into the inside of the water supply socket steel pipe from all directions.

[0045] The epoxy powder coating device for the water-transfer socket steel pipe first places the preheated water-transfer socket steel pipe, after internal degreasing and rust removal, between the insulation cylinder 2 and two placement racks 4. Then, the heating plate group 3 is activated to maintain a suitable coating temperature for the water-transfer socket steel pipe (the water-transfer socket steel pipe needs to be preheated to a certain temperature before coating, generally around 180-220℃. The purpose of preheating is to allow the epoxy powder to melt quickly and spread evenly on the surface after contacting the inner wall of the water-transfer socket steel pipe. A suitable preheating temperature helps the powder adhere well and facilitates the subsequent curing reaction). Then, the electric push rod 12 is activated, causing it to move the plate... 13. Push the water-transfer socket steel pipe to the appropriate spraying position, and at the same time open the valve so that multiple spray nozzles 5 spray epoxy powder all over the inside of the water-transfer socket steel pipe. Start the suction fan 11 so that the epoxy powder at the pipe opening of the water-transfer socket steel pipe enters the collection box 6 through the collection cylinder 7 and multiple collection pipes 8, so that excess epoxy powder can be collected. Then, the sprayed steel pipe is placed in the curing oven for curing (the curing process is the process of cross-linking reaction of the resin in the epoxy powder. By controlling the temperature and time of the curing oven, the coating is completely cured. The curing time depends on factors such as the pipe diameter and wall thickness, usually 15-30 minutes).

[0046] 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. An epoxy powder coating device for the inner surface of a water supply socket steel pipe, characterized in that, Include: Spraying platform (1); Heat preservation cylinder (2), the heat preservation cylinder (2) is moved and arranged on the upper side of the spraying platform (1); Heating plate group (3), the heating plate group (3) is installed on the inner side wall of the heat preservation cylinder (2); Placing rack (4), the placing rack (4) is provided with two, two placing racks (4) are symmetrically arranged on both sides of the heat preservation cylinder (2); Moving assembly, moving assembly is arranged between the heat preservation cylinder (2) and two placing racks (4); Spraying nozzle (5), the spraying nozzle (5) is provided with multiple, multiple spraying nozzles (5) are arranged on one side of the heat preservation cylinder (2); Collecting box (6), the collecting box (6) is located on one side of multiple spraying nozzles (5); Collecting assembly, the collecting assembly is arranged on the collecting box (6).

2. A device for spraying epoxy powder inside a steel pipe of a water delivery bell and spigot according to claim 1, characterized in that, The collecting assembly includes: Collecting cylinder (7), the collecting cylinder (7) is located on one side of the collecting box (6), and the collecting cylinder (7) is provided with a collecting groove; Collecting pipe (8), the collecting pipe (8) is provided with multiple, multiple collecting pipes (8) are circumferentially arranged and communicated between the collecting cylinder (7) and the collecting box (6); Filter screen (9), the filter screen (9) is detachably connected in the collecting box (6); Protective door (10), the protective door (10) is detachably connected on the collecting box (6), and a plurality of connecting columns are fixedly connected between the protective door (10) and the filter screen (9); Suction fan (11), the suction fan (11) is installed on the protective door (10), and the output end of the suction fan (11) is communicated with the protective door (10).

3. A device for spraying epoxy powder inside the inner ring of a water supply bell and spigot steel pipe according to claim 2, characterized in that, The moving assembly includes: Electric push rod (12), the electric push rod (12) is installed at the top end of the heat preservation cylinder (2); Moving plate (13), the moving plate (13) is fixedly connected to the output end of the electric push rod (12), and the moving plate (13) is slidably arranged on the upper side of the spraying platform (1); Placing rod, the placing rod is provided with multiple, multiple placing rods are respectively fixedly connected between the moving plate (13) and two placing racks (4); Supporting block (14), the supporting block (14) is provided with two, two supporting blocks (14) are symmetrically connected to the bottom end of the moving plate (13), and the spraying platform (1) is provided with a supporting groove for sliding of the supporting block (14).

4. A device for spraying epoxy powder inside a steel pipe of a water delivery bell and spigot according to claim 3, characterized in that, Multiple spraying nozzles (5) are communicated with spraying pipes (15), the spraying pipes (15) are provided with valves, and the collecting box (6) and the collecting cylinder (7) are both provided with through holes matched with the spraying pipes (15).

5. A device for spraying an epoxy powder inside a steel pipe of a water delivery bell and spigot according to claim 4, characterized in that, The top end of the spraying platform (1) is fixedly connected with a supporting frame (16), and the supporting frame (16) is provided with a supporting groove for supporting the collecting cylinder (7).

6. A device for spraying an epoxy powder inside a steel pipe of a water delivery bell and spigot according to claim 5, characterized in that, The protective door (10) is fixedly connected with multiple clamping plates (17), the outer side wall of the collecting box (6) is fixedly connected with multiple clamping cylinders (18), and the clamping cylinder (18) is provided with a clamping groove matched with the clamping plate (17).

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