Drying device for spraying inner wall of metal pipe fitting

Abstract

The drying device for the sprayed inner wall of the metal pipe fitting comprises a bottom plate, a sleeve is embedded in the upper surface of the bottom plate, leakage grooves which are annularly arranged are formed in the outer surface of the sleeve, a heating box is arranged below the bottom plate, and the upper surface of the heating box communicates with an exhaust fan; the output end of the exhaust fan communicates with the bottom end of the sleeve, the inner wall of each leakage groove is rotationally connected with an air guide plate, a motor is installed on the inner top wall of the sleeve, and the output end of the motor is fixedly connected with a rotating disc. According to the device, through cooperation of the sleeve, the leakage groove, the motor, the rotating disc, the push-pull plate and the air guide plate, the rotating disc can be driven to deflect in a reciprocating mode through work of the motor, meanwhile, the rotating disc can drive the push-pull plate to deflect, the push-pull plate can drive the air guide plate to rotate back and forth in a small range, the air guide plate can guide hot air, and the hot air can be evenly blown to the inner wall of a pipe fitting; therefore, comprehensive drying of the inner wall of the pipe fitting can be completed.

Description

Technical Field

[0001] This application relates to the field of pipe drying technology, and in particular to a drying device for spraying the inner wall of metal pipes. Background Technology

[0002] During the processing of pipe fittings, a spraying process is first required to ensure that the surface of the pipe fittings has a uniform and dense coating. The drying process after spraying is crucial to the quality of the coating. The purpose of drying is to use heating or drying equipment to quickly evaporate the solvent in the coating, promote the hardening of the coating, and form a strong protective film. This process can improve the durability, hardness, corrosion resistance and impact resistance of the coating, thereby enhancing the overall performance of the pipe fittings.

[0003] Application No. 202220200673.1 discloses a drying system for the inner wall of a metal pipe, specifically relating to the field of paint drying technology. The system includes a base with two side plates fixedly connected to the top. A metal pipe is positioned between the two side plates. A hot air blower is located on one side of the metal pipe, and connecting plates are fixedly connected to both the front and rear sides of the hot air blower. This invention utilizes the hot air blower to generate hot air, which enters the metal pipe and dries the paint on its inner wall. Rotating the handle drives a first threaded rod, which in turn moves one of the horizontal plates upwards, thereby moving one of the connecting plates upwards, and ultimately moving the hot air blower upwards. Adjusting the position of the hot air blower allows it to be positioned in the middle of the metal pipe. The system has a simple structure, is convenient for drying different types of metal pipes, and provides good performance.

[0004] The above-mentioned solution has its shortcomings. While using a hot air blower to dry the inside of the metal pipe can accelerate the evaporation of solvents in the coating and surface hardening, the airflow direction of the hot air blower cannot ensure that the hot air is evenly distributed on the inner wall of the pipe. This uneven distribution of hot air may result in some areas of the inner wall of the pipe not being effectively exposed to the hot air, resulting in localized areas that are not dried. To address this issue, we propose a drying device for the inner wall of metal pipe coating. Utility Model Content

[0005] The purpose of this application is to provide a drying device for spraying the inner wall of metal pipe fittings to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A drying device for spraying the inner wall of a metal pipe includes a base plate, a sleeve embedded in the upper surface of the base plate, annularly arranged slots on the outer surface of the sleeve, a heating box below the base plate, an exhaust fan connected to the upper surface of the heating box, the output end of the exhaust fan connected to the bottom end of the sleeve, a guide plate rotatably connected to the inner wall of each slot, a motor installed on the inner top wall of the sleeve, a turntable fixedly connected to the output end of the motor, annularly arranged push-pull plates hinged to the outer surface of the turntable, and the other end of each push-pull plate hinged to the end of the guide plate located inside the sleeve.

[0008] In a further embodiment, a set of support pillars are fixedly connected to the inner wall of the heating box, and a heating wire is sleeved on the outer surface of each support pillar. A filter screen is provided at the bottom of the heating box.

[0009] In a further embodiment, an annular sealing gasket is fixedly connected to the upper surface of the base plate, and the annular sealing gasket is located outside the sleeve.

[0010] In a further embodiment, a support rod is fixedly connected to the upper surface of the base plate, a hanging plate is rotatably connected to the top of the support rod, an electric push rod is embedded in the upper surface of the hanging plate, and a pressure plate is fixedly connected to the bottom end of the electric push rod.

[0011] In a further embodiment, two hydraulic push rods are mounted on the upper surface of the base plate, and arc-shaped plates are mounted on the telescopic ends of the two hydraulic push rods.

[0012] In a further embodiment, two sets of support legs are fixedly connected to the bottom surface of the base plate, and the bottom end of each support leg is located below the heating box.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This application utilizes a combination of a sleeve, a trough, a motor, a turntable, a push-pull plate, and a guide plate. The motor drives the turntable to reciprocate, which in turn drives the push-pull plate to deflect. The push-pull plate then drives the guide plate to rotate back and forth slightly. The guide plate directs the hot air, ensuring it is evenly blown onto the inner wall of the pipe, thus achieving thorough drying of the inner wall. Furthermore, the combination of an annular sealing gasket, a support rod, a hanging plate, an electric push rod, and a pressure plate allows the pressure plate to push the pipe as the electric push rod extends, ensuring the bottom of the pipe is in close contact with the annular sealing gasket and preventing air leakage. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a drying device for spraying the inner wall of metal pipes.

[0016] Figure 2A three-dimensional structural schematic diagram of the top sectional view of the drying device for spraying the inner wall of metal pipe fittings.

[0017] Figure 3 A three-dimensional structural schematic diagram of the heating chamber of a drying device for spraying the inner wall of metal pipes.

[0018] Figure 4 Drying equipment for spraying the inner wall of metal pipes Figure 2 A magnified structural diagram of part A in the middle.

[0019] In the diagram: 1. Base plate; 2. Hydraulic push rod; 3. Sleeve; 4. Support rod; 5. Hanging plate; 6. Electric push rod; 7. Pressure plate; 8. Arc plate; 9. Annular sealing gasket; 10. Exhaust fan; 11. Heating box; 12. Support leg; 13. Leakage groove; 14. Air guide plate; 15. Push-pull plate; 16. Turntable; 17. Heating wire; 18. Support column; 19. Motor. Detailed Implementation

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] 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.

[0022] Please see Figure 1-4 In this utility model, a drying device for spraying the inner wall of a metal pipe includes a base plate 1, a sleeve 3 embedded on the upper surface of the base plate 1, and annularly arranged grooves 13 on the outer surface of the sleeve 3. A heating box 11 is arranged below the base plate 1, and an exhaust fan 10 is connected to the upper surface of the heating box 11. The output end of the exhaust fan 10 is connected to the bottom end of the sleeve 3. When the exhaust fan 10 is working, it will draw hot air into the sleeve 3, and the hot air will run out from the grooves 13 and blow towards the inner wall of the pipe, thereby achieving the effect of drying the inner wall of the pipe.

[0023] A set of support columns 18 are fixedly connected to the inner wall of the heating box 11. Each support column 18 is fitted with a heating wire 17 on its outer surface. A filter screen is provided at the bottom of the heating box 11. The heating wire 17 can be used to heat the air inside the heating box 11 in real time, thereby ensuring that hot air is provided to the inner wall of the drying pipe in real time.

[0024] Two sets of support legs 12 are fixedly connected to the bottom surface of the base plate 1. The bottom end of each support leg 12 is located below the heating box 11. The support legs 12 can stably support the base plate 1 and ensure that the heating box 11 is on the ground, thereby ensuring the air circulation inside the heating box 11.

[0025] Each trough 13 has a guide plate 14 rotatably connected to its inner wall. A motor 19 is installed on the inner top wall of the sleeve 3. A turntable 16 is fixedly connected to the output end of the motor 19. A ring of push-pull plates 15 are hinged to the outer surface of the turntable 16. The other end of each push-pull plate 15 is hinged to the end of the guide plate 14 located inside the sleeve 3. With the operation of the motor 19, the turntable 16 will drive the push-pull plates 15 to reciprocate. The push-pull plates 15 will pull the guide plate 14 to deflect back and forth. When the guide plate 14 deflects, it can guide the hot air evenly to the inner wall of the pipe, thereby drying the inner wall of the pipe evenly.

[0026] An annular sealing gasket 9 is fixedly connected to the upper surface of the base plate 1. The annular sealing gasket 9 is located outside the sleeve 3. The annular sealing gasket 9 can support the pipe fitting and improve the sealing of the bottom of the pipe fitting.

[0027] A support rod 4 is fixedly connected to the upper surface of the base plate 1. A hanging plate 5 is rotatably connected to the top of the support rod 4. An electric push rod 6 is embedded in the upper surface of the hanging plate 5. A pressure plate 7 is fixedly connected to the bottom of the electric push rod 6. Rotate the hanging plate 5 to position the pressure plate 7 above the sleeve 3. Then control the electric push rod 6 to extend. The pressure plate 7 will press the pipe fitting, so that its bottom end is in close contact with the annular sealing gasket 9.

[0028] Two hydraulic push rods 2 are installed on the upper surface of the base plate 1. Arc plates 8 are installed on the telescopic ends of the two hydraulic push rods 2. The extension of the hydraulic push rods 2 can push the arc plates 8 to move, and the two arc plates 8 will form a clamp on the pipe to prevent it from shifting when drying the inner wall of the pipe.

[0029] The working principle of this application is as follows: When in use, the pipe fitting is placed outside the sleeve 3, and then the electric push rod 6 is activated to extend and the pressure plate 7 presses the pipe fitting. Then, the exhaust fan 10 is controlled to work. The exhaust fan 10 will draw the hot air inside the heating box 11 into the sleeve 3. The hot air will run out from the trough 13 and blow towards the inner wall of the pipe fitting. At the same time, the motor 19 can be started to work in reciprocating motion. The motor 19 will drive the turntable 16 to rotate back and forth. At the same time, the push-pull plate 15 will push the air guide plate 14 to deflect back and forth. When the air guide plate 14 deflects, it will guide the hot air evenly, so that the inner wall of the pipe fitting can be dried by hot air from all directions, which further improves the drying effect on the inner wall of the pipe fitting.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drying device for spraying coating the inner wall of metal pipe fittings, characterized in that: Includes a base plate (1), the upper surface of which is inlaid with a sleeve (3), the outer surface of which is provided with annularly arranged slots (13), a heating box (11) is provided below the base plate (1), the upper surface of which is connected to an exhaust fan (10), the output end of which is connected to the bottom end of the sleeve (3), the inner wall of each slot (13) is rotatably connected to a guide plate (14), a motor (19) is installed on the inner top wall of the sleeve (3), the output end of which is fixedly connected to a turntable (16), the outer surface of which is hinged with annularly arranged push-pull plates (15), the other end of each push-pull plate (15) is hinged to one end of the guide plate (14) located inside the sleeve (3).

2. The drying device for spraying inner wall of metal pipe according to claim 1, characterized in that: The inner wall of the heating box (11) is fixedly connected to a set of support columns (18), and each support column (18) is fitted with a heating wire (17) on its outer surface. A filter screen is provided at the bottom of the heating box (11).

3. The drying device for spraying the inner wall of a metal pipe fitting according to claim 1, characterized in that: An annular sealing gasket (9) is fixedly connected to the upper surface of the base plate (1), and the annular sealing gasket (9) is located outside the sleeve (3).

4. The drying device for spraying the inner wall of a metal pipe according to claim 1, characterized in that: A support rod (4) is fixedly connected to the upper surface of the base plate (1). A hanging plate (5) is rotatably connected to the top of the support rod (4). An electric push rod (6) is embedded in the upper surface of the hanging plate (5). A pressure plate (7) is fixedly connected to the bottom end of the electric push rod (6).

5. The drying device for spraying the inner wall of a metal pipe fitting according to claim 1, characterized in that: Two hydraulic push rods (2) are installed on the upper surface of the base plate (1), and arc plates (8) are installed on the telescopic ends of the two hydraulic push rods (2).

6. The drying device for spraying the inner wall of a metal pipe fitting according to claim 1, characterized in that: The bottom surface of the base plate (1) is fixedly connected to two sets of support legs (12), and the bottom end of each support leg (12) is located below the heating box (11).

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