A pipeline anticorrosion coating drying machine
By using an eccentric disc to drive the guide plate for slow air sweeping, the defects of sagging and orange peel caused by high wind speed in the existing technology are solved, and the hot air is evenly distributed, which improves the quality and efficiency of drying anti-corrosion coatings for valves and pipelines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIHAI PENGDA PLASTIC SPECIAL MATERIAL CO LTD
- Filing Date
- 2025-09-26
- Publication Date
- 2026-07-14
AI Technical Summary
The existing valve and pipeline anti-corrosion coating dryers use relatively simple fans with a single airflow direction, which can easily cause sagging and orange peel defects when the airflow speed is high, affecting the drying quality.
An eccentric disc drives the guide plate to move slowly back and forth in a straight line. Through mechanical linkage, the guide plate slowly sweeps the air up and down. The guide plate guides the hot air and avoids the hot air blowing directly onto the paint surface of the pipe. Combined with the filter and heating tube, it ensures the uniformity of hot air flow.
It improves drying quality, avoids defects such as dripping and orange peel, increases drying speed, ensures uniform heating at all points around the circumference of large-diameter pipes, and solves the problems of slow drying at the top and easy dripping at the bottom.
Smart Images

Figure CN224486337U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline processing technology, specifically a pipeline anti-corrosion coating dryer. Background Technology
[0002] Valves and pipelines are an important part of common piping systems in the industrial field. They are used to control the flow and pressure of fluids (liquids, gases, steam, etc.) in pipelines. Valves and pipelines typically consist of valves, pipes, and related accessories. Their functions include regulating the flow rate, pressure, and direction of fluids, as well as cutting off the flow of fluids.
[0003] An investigation revealed that a Chinese utility model patent (publication number: CN222855893U) discloses a valve and pipeline anti-corrosion coating drying machine, comprising a drying chamber, a placement component, and a toggle component. An air inlet box is fixedly installed on the rear side of the drying chamber. The placement component and the toggle component are both mounted on the drying chamber. The toggle component includes a connecting plate and a toggle rod, with the toggle rod fixedly installed at the bottom of the connecting plate. Through the coordinated use of the placement component, connecting plate, and toggle rod, the valves and pipelines need to be periodically rotated or toggled during the drying process to ensure uniform coating drying. The toggle rod allows for convenient movement of the valves and pipelines on the hooks, avoiding accidents caused by improper manual operation and improving operational safety and reliability. By combining the toggle rod with an automated control system, automated movement of the valves and pipelines is achieved, further improving production efficiency and operational convenience.
[0004] Although the aforementioned patent utilizes a combination of discs, connecting columns, cross plates, and hooks, the discs ensure that valves and pipelines are evenly exposed to hot air during the drying process, guaranteeing uniform drying of the anti-corrosion coating and preventing localized insufficient drying or overheating. Furthermore, it allows for the drying of multiple valves and pipelines, saving the time required for drying each individual group and improving production efficiency. However, several problems remain when drying valves and pipelines. The fan is relatively simple to use, with a single airflow direction, and blows directly onto the paint surface of the pipeline. This can easily lead to rapid film formation due to high wind speed, while the leeward side may exhibit defects such as sagging and orange peel, affecting appearance and performance, and ultimately significantly reducing drying quality.
[0005] Therefore, this utility model provides a pipeline anti-corrosion coating dryer to solve the above problems. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] This utility model provides a pipeline anti-corrosion coating drying machine, which aims to solve the problems mentioned in the background art.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, this utility model provides the following technical solution:
[0010] A pipe anti-corrosion coating dryer includes a drying box, with fans fixedly connected to the left and right sides of the drying box, a door provided on the front of the drying box, and a protective shell fixedly connected to the top of the drying box;
[0011] The drying oven has two fixed support frames inside, and several guide plates are rotatably connected inside the support frames. A connecting frame is fixedly connected to the side of the guide plate near the fan, and a sliding rod is slidably connected inside the connecting frame. Two limiting posts are fixedly connected to the inner bottom of the drying oven, and a drive rod is slidably connected to the outer surface of the two limiting posts.
[0012] As a preferred technical solution of this application, the inside of the drive rod is fixedly connected to the outer surface of the support frame, and the outer surface of the drive rod is slidably connected to the inner side of the top of the drying oven.
[0013] As a preferred technical solution of this application, a reciprocating frame is fixedly connected to one side of the two drive rods opposite to each other, and a limit rod is fixedly connected to the top of the drying box, with the outer surface of the limit rod slidingly connected to the inside of the drive rod.
[0014] As a preferred technical solution of this application, a motor is fixedly connected to the top of the drying oven, an eccentric disk is fixedly connected to the front output end of the motor, and a rotating shaft is fixedly connected to the front of the eccentric disk.
[0015] As a preferred technical solution of this application, the outer surface of the rotating shaft is slidably connected to the inside of the reciprocating frame, an exhaust port is fixedly connected to the back of the drying box, and several heating tubes are fixedly connected to the inside of the left and right sides of the drying box.
[0016] As a preferred technical solution of this application, two filters are fixedly connected inside the drying oven. The filters are located on the side of the support frame near the heating tube. Two limiting strips are fixedly connected to the inner side of the bottom of the drying oven. A collection tray is inserted into the front of the drying oven. Limiting grooves are opened on the left and right sides of the collection tray. The inside of the limiting grooves is inserted into the outer surface of the limiting strips.
[0017] As a preferred technical solution of this application, a sealing plate is fixedly connected to the front of the collection tray, and extension rods are fixedly connected to the left and right sides of the sealing plate. Two fixing blocks are fixedly connected to the front of the drying box, and a flipping block is hinged to the front of the fixing block. Bolts are threadedly connected to the flipping block and the fixing block.
[0018] (III) Beneficial Effects
[0019] By setting an eccentric disc and starting a motor to drive the eccentric disc to move slowly back and forth in a linear motion, a series of mechanical linkages drive the guide plate to slowly sweep air up and down. The guide plate guides the hot air, avoiding defects such as drips and orange peel caused by excessive hot air flow directly blowing onto the pipe paint surface, thus further improving the drying quality and accelerating the drying speed of the pipe paint surface. At the same time, it ensures the uniformity of hot air flow. For large-diameter pipes, the sweeping air can ensure that all points on the circumference are heated evenly, solving the problems of slow drying at the top and easy drips at the bottom. Attached Figure Description
[0020] Figure 1 This is a structural schematic diagram of a pipeline anti-corrosion coating dryer;
[0021] Figure 2 This is a schematic diagram of the exhaust port structure in a pipeline anti-corrosion coating dryer;
[0022] Figure 3 This is a schematic diagram of a reciprocating frame structure in a pipeline anti-corrosion coating dryer.
[0023] Figure 4 This is a schematic diagram of a heating pipe structure in a pipe anti-corrosion coating dryer.
[0024] Figure 5 This is a schematic diagram of a connecting frame structure in a pipe anti-corrosion coating dryer.
[0025] Figure 6 This is a schematic diagram of a limiting groove structure in a pipeline anti-corrosion coating dryer.
[0026] In the picture:
[0027] 1. Drying oven; 2. Protective shell; 3. Fan; 4. Sealing plate; 5. Door; 6. Exhaust vent; 7. Drive rod; 8. Eccentric disc; 9. Motor; 10. Reciprocating frame; 11. Limiting rod; 12. Collection tray; 13. Tilting block; 14. Heating tube; 15. Filter screen; 16. Support frame; 17. Guide plate; 18. Connecting frame; 19. Sliding rod; 20. Limiting post; 21. Bolt; 22. Limiting strip; 23. Fixing block; 24. Limiting groove; 25. Extension rod. Detailed Implementation
[0028] 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.
[0029] This utility model provides a pipe anti-corrosion coating drying machine, such as Figure 1-6 As shown, the pipe anti-corrosion coating dryer includes a drying box 1, with fans 3 fixedly connected to the left and right sides of the drying box 1, a door 5 on the front of the drying box 1, and a protective shell 2 fixedly connected to the top of the drying box 1.
[0030] The drying oven 1 has two fixed support frames 16 inside. Several guide plates 17 are rotatably connected inside the support frames 16. A connecting frame 18 is fixedly connected to the side of the guide plate 17 near the fan 3. A sliding rod 19 is slidably connected inside the connecting frame 18. Two limiting posts 20 are fixedly connected to the inner bottom of the drying oven 1. A drive rod 7 is slidably connected to the outer surface of the two limiting posts 20.
[0031] The drive rod 7 is fixedly connected to the outer surface of the support frame 16. The outer surface of the drive rod 7 is slidably connected to the inner top of the drying chamber 1. A reciprocating frame 10 is fixedly connected to one side of the two drive rods 7. A limit rod 11 is fixedly connected to the top of the drying chamber 1. The outer surface of the limit rod 11 is slidably connected to the inside of the drive rod 7. A motor 9 is fixedly connected to the top of the drying chamber 1. An eccentric disk 8 is fixedly connected to the front output end of the motor 9. A rotating shaft is fixedly connected to the front of the eccentric disk 8. The outer surface of the rotating shaft is slidably connected to the inside of the reciprocating frame 10. An exhaust port 6 is fixedly connected to the back of the drying chamber 1. Several heating tubes 14 are fixedly connected to the inside of the left and right sides of the drying chamber 1.
[0032] Specifically, by setting an eccentric disk 8 and starting a motor 9 to drive the eccentric disk 8 to move slowly back and forth in a straight line, a series of mechanical linkages drive the guide plate 17 to slowly sweep air up and down. The guide plate 17 guides the hot air, avoiding defects such as drips and orange peel caused by excessive hot air flow directly blowing onto the paint surface of the pipe, thus further improving the drying quality and accelerating the drying speed of the pipe paint surface. At the same time, it ensures the uniformity of hot air flow. For large-diameter pipes, the sweeping air can ensure that all points on the circumference are heated evenly, solving the problems of slow drying at the top and easy drips at the bottom.
[0033] Two filters 15 are fixedly connected inside the drying oven 1. The filters 15 are located on the side of the support frame 16 near the heating tube 14. Two limiting strips 22 are fixedly connected to the inner bottom of the drying oven 1. A collection tray 12 is inserted into the front of the drying oven 1. Limiting grooves 24 are opened on the left and right sides of the collection tray 12. The inside of the limiting grooves 24 is inserted into the outer surface of the limiting strips 22. A sealing plate 4 is fixedly connected to the front of the collection tray 12. Extension rods 25 are fixedly connected to the left and right sides of the sealing plate 4. Two fixing blocks 23 are fixedly connected to the front of the drying oven 1. A flipping block 13 is hinged to the front of the fixing block 23. Bolts 21 are threadedly connected to the flipping block 13 and the fixing block 23.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A pipe anti-corrosion coating drying machine, comprising a drying chamber (1), characterized in that: The drying box (1) is fixedly connected to the left and right sides with fans (3), the drying box (1) is provided with a door (5) on the front, and the drying box (1) is fixedly connected to a protective shell (2). The drying oven (1) has two fixed support frames (16) inside. Several guide plates (17) are rotatably connected inside the support frames (16). A connecting frame (18) is fixedly connected to the side of the guide plate (17) near the fan (3). A sliding rod (19) is slidably connected inside the connecting frame (18). Two limiting posts (20) are fixedly connected to the inner bottom of the drying oven (1). A drive rod (7) is slidably connected to the outer surface of the two limiting posts (20).
2. The pipeline anti-corrosion coating drying machine according to claim 1, characterized in that: The drive rod (7) is fixedly connected to the outer surface of the support frame (16), and the outer surface of the drive rod (7) is slidably connected to the inner side of the top of the drying oven (1).
3. The pipeline anti-corrosion coating drying machine according to claim 1, characterized in that: A reciprocating frame (10) is fixedly connected to one side of the two drive rods (7), and a limiting rod (11) is fixedly connected to the top of the drying box (1). The outer surface of the limiting rod (11) is slidably connected to the inside of the drive rod (7).
4. A pipeline anti-corrosion coating drying machine according to claim 1, characterized in that: The top of the drying oven (1) is fixedly connected to a motor (9), and the front output end of the motor (9) is fixedly connected to an eccentric disk (8), and the front of the eccentric disk (8) is fixedly connected to a rotating shaft.
5. A pipeline anti-corrosion coating drying machine according to claim 4, characterized in that: The outer surface of the rotating shaft is slidably connected to the inside of the reciprocating frame (10), and an exhaust port (6) is fixedly connected to the back of the drying box (1). Several heating tubes (14) are fixedly connected to the inside of the left and right sides of the drying box (1).
6. A pipeline anti-corrosion coating drying machine according to claim 1, characterized in that: The drying oven (1) has two filters (15) fixedly connected inside. The filters (15) are located on the side of the support frame (16) near the heating tube (14). The bottom inner side of the drying oven (1) has two limiting strips (22) fixedly connected. The front of the drying oven (1) has a collection tray (12) inserted inside. The collection tray (12) has limiting grooves (24) on the left and right sides. The limiting grooves (24) are inserted into the outer surface of the limiting strips (22).
7. A pipeline anti-corrosion coating drying machine according to claim 6, characterized in that: The collecting tray (12) is fixedly connected to a sealing plate (4) on the front. The sealing plate (4) is fixedly connected to an extension rod (25) on both the left and right sides. The drying box (1) is fixedly connected to two fixing blocks (23) on the front. The fixing blocks (23) are hinged to a flipping block (13) on the front. The flipping block (13) and the fixing blocks (23) are internally threaded with bolts (21).