Plastic coating device for anti-corrosion steel pipe
By designing an anti-corrosion steel pipe coating device with adjustable fixing and drying mechanisms, the problems of existing devices being unable to adapt to steel pipes of different diameters and having long molding times have been solved. This enables flexible fixing and rapid drying of steel pipes of different diameters, thereby improving the coating quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-03-06
AI Technical Summary
Existing coating equipment cannot flexibly adjust and fix steel pipes of different diameters, and the lack of a drying mechanism leads to problems such as extended molding time and easy scratching of the coating.
A corrosion-resistant steel pipe coating device was designed, which includes a fixing mechanism and a drying mechanism. The device uses an adjustable fixing mechanism to fix steel pipes of different diameters and uses an electric heating rod to accelerate the drying process of the coating.
It enables flexible fixing of steel pipes of different diameters and shortens the molding time, reduces the probability of paint scratches, and improves the coating quality.
Smart Images

Figure CN223970193U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic coating equipment, and in particular to a plastic coating equipment for anti-corrosion steel pipes. Background Technology
[0002] A plastic coating device is used to coat the surface of an object with a plastic layer. Many plastics have good chemical stability, effectively isolating the coated object from corrosive substances such as air, moisture, acids, alkalis, and salts, preventing rust and corrosion. Through plastic coating, corrosion on the surface of steel pipes is effectively controlled, reducing problems such as wall thinning and strength reduction caused by corrosion.
[0003] In the process of realizing this application, the inventors discovered the following problems with the prior art: Existing plastic coating devices generally include structures such as spray nozzles, fixing mechanisms, and steel pipes. Most existing fixing mechanisms are fixed and can only fix a certain type of steel pipe. They cannot be flexibly adjusted according to the diameter of the steel pipe. At the same time, existing equipment lacks a drying mechanism and mostly dries naturally, which prolongs the final molding time. In addition, there is a possibility that the uncured plastic may be scratched off due to accidental contact, resulting in a decline in quality.
[0004] Therefore, those skilled in the art have provided a device for coating anti-corrosion steel pipes with plastic to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a plastic coating device for anti-corrosion steel pipes. The fixing mechanism can increase the flexibility of the equipment, and the drying mechanism can shorten the forming time of the steel pipes.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic coating device for anti-corrosion steel pipes, comprising a fixing mechanism and a drying mechanism. The fixing mechanism includes a pressure block, multiple No. 1 pipes, multiple No. 2 pipes, multiple steel pipe bodies, and a small gear. A bracket is rotatably connected to the inner wall of one end of the pressure block, and a bottom block is fixedly connected to the bottom of the bracket. Multiple No. 1 screws are threadedly connected to the inner wall of the pressure block, and a movable block is rotatably connected to the outer wall of the bottom of the multiple No. 1 screws. The bottom of the multiple movable blocks is movably connected to the outer walls of four of the multiple steel pipe bodies, and the bottom of the pressure block away from the bracket is movably connected to the outer wall of the remaining steel pipe body among the multiple steel pipe bodies.
[0007] The drying mechanism includes multiple fixed rods and a base plate. Each of the multiple fixed rods has an electric heating rod fixedly installed at one end near the multiple steel pipe bodies. A movable frame is slidably connected to the top of the end of the base plate away from the multiple fixed rods. A long screw is threadedly connected to the inner wall of the movable frame.
[0008] Furthermore, a large gear is fixedly connected to the outer wall of the multiple No. 2 tubes, and the multiple No. 2 tubes are rotatably disposed inside the multiple No. 1 tubes, with one of the large gears meshing with a small gear.
[0009] Furthermore, a transmission pipe is fixedly connected to one end of each of the first tubes away from the multiple fixed rods, and a first motor is fixedly connected to one side of the small gear away from the multiple fixed rods. A support plate is fixedly connected to the outer wall of the first motor, and the bottom of the support plate is fixedly connected to the top of the base plate.
[0010] Furthermore, a locking block is fixedly connected to the top of the base plate away from the movable frame, and a second motor is fixedly connected inside the locking block. The output end of the second motor is fixedly connected to the end of the long screw away from the movable frame.
[0011] Furthermore, a fixing block is fixedly connected to the top of the base plate away from the movable frame, and the side of the fixing block near the movable frame is fixedly connected to the end of multiple fixing rods away from the movable frame.
[0012] Furthermore, the top of the movable frame is fixedly connected to the bottom of the base block, and a short screw is threadedly connected to the inner wall of the end of the base block away from the multiple No. 1 screws. A top block is rotatably connected to the outer wall of the top of the short screw, and the top of the top block is fixedly connected to the bottom of the pressure block away from the multiple No. 1 screws.
[0013] Furthermore, the bottom of the multiple steel pipe bodies is movably connected to the top of the base block, the multiple No. 2 pipes are all installed inside the multiple steel pipe bodies, and nozzles are fixedly installed on the outer walls of the multiple No. 2 pipes.
[0014] Furthermore, a limiting rod is fixedly connected to the top of the plurality of movable blocks away from the plurality of steel pipe bodies, and the plurality of limiting rods are slidably connected to the inner wall of the pressure block.
[0015] This utility model has the following beneficial effects:
[0016] 1. The present invention proposes a plastic coating device for anti-corrosion steel pipes. Steel pipes of different thicknesses are placed on the top of the base block. The pressure block rotates to the right along the support. Then, the short screw rotates to drive the top block and pressure block to move down and fix the thickest steel pipe. The moving block and the limiting rod driven by the rotating screw move down to squeeze and fix multiple thinner steel pipes. This device can coat steel pipes of different thicknesses, increasing the overall flexibility.
[0017] 2. The present invention proposes a plastic coating device for anti-corrosion steel pipes. When the No. 2 motor starts working, it causes the long screw to rotate, which drives the moving frame to move to the left. The moving frame drives the bottom block at the top and multiple steel pipe bodies to move to the left. The inner wall of the multiple steel pipe bodies is heated and dried by electric heating rods, so that it can be quickly shaped, shortening its forming time and reducing the probability of the coating layer being scratched off in the future. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the drying mechanism of this utility model;
[0020] Figure 3 This is a schematic diagram of the fixing mechanism structure of this utility model;
[0021] Figure 4 This utility model Figure 3 A magnified structural diagram at point A;
[0022] Figure 5 This is a cross-sectional schematic diagram of the short screw and top block of this utility model;
[0023] Figure 6 This is a cross-sectional view of the No. 1 and No. 2 tubes of this utility model;
[0024] Figure 7 This is a cross-sectional schematic diagram of the No. 1 screw and the moving block of this utility model.
[0025] Legend:
[0026] 1. Fixing mechanism; 2. Drying mechanism; 101. Pressing block; 102. Pipe No. 1; 103. Pipe No. 2; 104. Large gear; 105. Transmission pipe; 106. Support; 107. Steel pipe body; 108. Bottom block; 109. Top block; 110. Short screw; 111. Support plate; 112. Motor No. 1; 113. Small gear; 114. Limiting rod; 115. Screw No. 1; 116. Moving block; 201. Fixing rod; 202. Electric heating rod; 203. Fixing block; 204. Base plate; 205. Locking block; 206. Motor No. 2; 207. Long screw; 208. Moving frame. Detailed Implementation
[0027] 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.
[0028] Reference Figures 1-7This utility model provides an embodiment of a plastic coating device for anti-corrosion steel pipes, comprising a fixing mechanism 1 and a drying mechanism 2. The fixing mechanism 1 includes a pressure block 101, multiple No. 1 pipes 102, multiple No. 2 pipes 103, multiple steel pipe bodies 107, and a small gear 113. A bracket 106 is rotatably connected to the inner wall of one end of the pressure block 101, and a bottom block 108 is fixedly connected to the bottom of the bracket 106. Multiple No. 1 screws 115 are threadedly connected to the inner wall of the pressure block 101, and a moving block 116 is rotatably connected to the outer wall of the bottom of the multiple No. 1 screws 115. The bottom of the multiple moving blocks 116 is... The outer walls of four of the multiple steel pipe bodies 107 are movably connected, and the bottom of the pressure block 101 away from the support 106 is movably connected to the outer wall of the remaining steel pipe body 107. The drying mechanism 2 includes multiple fixed rods 201 and a base plate 204. Electric heating rods 202 are fixedly installed at one end of each of the multiple fixed rods 201 near the multiple steel pipe bodies 107. A movable frame 208 is slidably connected to the top of the end of the base plate 204 away from the multiple fixed rods 201. A long screw 207 is threadedly connected to the inner wall of the movable frame 208.
[0029] Specifically, steel pipe bodies 107 of different diameters are placed on top of the bottom block 108. The pressure block 101 is rotated to the right along the top of the bracket 106 and stops at the top of the steel pipe body 107. Then, the short screw 110 is rotated to move it downward, causing the top block 109 and the pressure block 101 to rotate downward along the bracket 106 and fix the pressure block 101. Then, multiple screws 115 are rotated to push the bottom moving block 116 and the limit rod 114 downward, fixing the steel pipe body 107. The second motor 206 then operates. The motor drives the long screw 207 to rotate, which causes the moving frame 208 to move the top block 108 and multiple steel pipe bodies 107 to the left. The inner wall passes through multiple electric heating rods 202, which quickly shape the inside of the steel pipe bodies 107. Finally, the second motor 206 reverses, causing the moving frame 208 to move the multiple steel pipe bodies 107 to the middle of the multiple electric heating rods 202 and multiple second tubes 103, and then the multiple steel pipe bodies 107 are removed.
[0030] Reference Figures 1-7Multiple second-stage tubes 103 are fixedly connected to the outer walls of large gears 104. These tubes 103 are rotatably mounted inside multiple first-stage tubes 102. One of the large gears 104 meshes with a small gear 113. A transmission pipe 105 is fixedly connected to the end of each first-stage tube 102 away from the multiple fixed rods 201. A first-stage motor 112 is fixedly connected to the side of the small gear 113 away from the multiple fixed rods 201. A support plate 111 is fixedly connected to the outer wall of the first-stage motor 112. The bottom of the support plate 111 is fixedly connected to the top of the base plate 204. A locking block 205 is fixedly connected to the top of the base plate 204 away from the moving frame 208. A second-stage motor 206 is fixedly connected inside the locking block 205. The output end of the second-stage motor 206 is fixedly connected to the end of the long screw 207 away from the moving frame 208. The top of the base plate 204 away from the moving frame 208 is fixedly connected to... There is a fixed block 203. The side of the fixed block 203 near the movable frame 208 is fixedly connected to the end of multiple fixed rods 201 away from the movable frame 208. The top of the movable frame 208 is fixedly connected to the bottom of the bottom block 108. The inner wall of the bottom block 108 away from multiple screw rods 115 is threaded with a short screw 110. The top outer wall of the short screw 110 is rotatably connected to a top block 109. The top of the top block 109 is fixedly connected to the bottom of the pressure block 101 away from the multiple screw rods 115. The bottom of multiple steel pipe bodies 107 is movably connected to the top of the bottom block 108. Multiple second pipes 103 are all set inside the multiple steel pipe bodies 107. The outer wall of the multiple second pipes 103 is fixedly equipped with nozzles. The top of multiple movable blocks 116 away from the multiple steel pipe bodies 107 is fixedly connected to limit rods 114. The multiple limit rods 114 are slidably connected to the inner wall of the pressure block 101.
[0031] Specifically, one end of the transmission pipe 105 is connected to a pipeline, and the other end of the pipeline is located inside the coating liquid tank. The coating is sent into the transmission pipe 105, pipe 102, and pipe 103 by a water pump. The coating is sprayed onto the inner wall of the steel pipe body 107 through the nozzle. The first motor 112 is started to drive the small gear 113 to rotate. The small gear 113 drives the large gear 104 and pipe 103 to rotate. The rotation of pipe 103 inside pipe 102 drives multiple nozzles to rotate, so as to spray the inside of the steel pipe body 107 without dead angles, so that the coating coverage is more uniform. Multiple limit rods 114 can rotate with the first screw 115 to limit the rotation of the moving block 116, so that it can press more accurately on the top of the steel pipe body 107.
[0032] Working principle: Steel pipe bodies 107 of different diameters are placed on top of the base block 108. Then, the pressure block 101 rotates to the right along the top of the support 106 and stops at the top of the steel pipe body 107. The short screw 110 is rotated, and the short screw 110 moves downward along the base block 108, causing the top block 109 and the pressure block 101 to rotate downward along the support 106. Then, multiple No. 1 screws 115 are rotated, causing the bottom moving block 116 and the limiting rod 114 to move downward, so that the moving block 116 presses the steel pipe body 107 and fixes it. One end of the transmission pipe 105 A fixed pipe is connected to the coating liquid tank. The other end of the pipe is located inside the coating liquid tank. The coating is sent into the transmission pipe 105, pipe 102, and pipe 103 by a water pump. The coating is sprayed onto the inner wall of the steel pipe body 107 through the nozzle. Then, motor 112 is started to drive the small gear 113 to rotate. The small gear 113 drives multiple large gears 104 to rotate. The multiple large gears 104 drive pipe 103 on the inner wall to rotate along the inside of pipe 102. Pipe 103 drives multiple nozzles to rotate, so as to spray the inside of the steel pipe body 107 without dead angles.
[0033] Next, the output of motor 206 is started to drive the long screw 207 to rotate. The rotation of the long screw 207 causes the moving frame 208 to move to the left along the base plate 204. The moving frame 208 drives the multiple steel pipe bodies 107 at the bottom to move to the left. The inner wall passes through multiple electric heating rods 202 and is heated and dried by the electric heating rods 202, so that it can be quickly shaped. Then, motor 206 reverses, causing the moving frame 208 to move the multiple steel pipe bodies 107 to the right to the middle of the multiple electric heating rods 202 and multiple No. 2 pipes 103. Then, the multiple moving blocks 116 and the pressing block 101 are reset, and the multiple steel pipe bodies 107 are taken out.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A plastic coating device for anticorrosion steel pipe, comprising a fixing mechanism (1), a drying mechanism (2), characterized in that: The fixed mechanism (1) includes a pressing block (101), a plurality of first pipes (102), a plurality of second pipes (103), a plurality of steel pipe bodies (107), a small gear (113), the inner wall of one end of the pressing block (101) is rotatably connected with a support (106), the bottom of the support (106) is fixedly connected with a bottom block (108), the inner wall of the pressing block (101) is threadedly connected with a plurality of first screws (115), the outer wall of the bottom of a plurality of the first screws (115) is rotatably connected with a moving block (116), the bottom of a plurality of the moving blocks (116) is movably connected with the outer wall of four steel pipe bodies (107) in a plurality of steel pipe bodies (107), and the bottom of the pressing block (101) away from the support (106) is movably connected with the outer wall of the remaining one steel pipe body (107) in the plurality of steel pipe bodies (107). The drying mechanism (2) includes a plurality of fixed rods (201) and a bottom plate (204), each of the plurality of fixed rods (201) is fixedly provided with an electric heating rod (202) near one end of the plurality of steel pipe bodies (107), the top of one end of the bottom plate (204) away from the plurality of fixed rods (201) is slidably connected with a moving frame (208), and the inner wall of the moving frame (208) is threadedly connected with a long screw (207).
2. The apparatus according to claim 1, wherein: The outer wall of a plurality of the second pipes (103) is fixedly connected with a large gear (104), a plurality of the second pipes (103) are rotatably arranged in a plurality of the first pipes (102), and one of a plurality of the large gears (104) is meshed with the small gear (113).
3. The apparatus according to claim 1, wherein: The outer wall of a plurality of the first pipes (102) is fixedly connected with a transmission pipe (105) away from one end of the plurality of fixed rods (201), the small gear (113) is fixedly connected with a first motor (112) away from one side of the plurality of fixed rods (201) and is fixedly arranged at the output end of the first motor (112), the outer wall of the first motor (112) is fixedly connected with a support plate (111), and the bottom of the support plate (111) is fixedly connected with the top of the bottom plate (204).
4. The apparatus according to claim 1, wherein: The top of the bottom plate (204) away from the moving frame (208) is fixedly connected with a clamping block (205), the inside of the clamping block (205) is fixedly connected with a second motor (206), and the output end of the second motor (206) is fixedly connected with one end of the long screw (207) away from the moving frame (208).
5. The apparatus according to claim 1, wherein: The top of the bottom plate (204) away from the moving frame (208) is fixedly connected with a fixed block (203), and one side of the fixed block (203) close to the moving frame (208) is fixedly connected with one end of the plurality of fixed rods (201) away from the moving frame (208).
6. The apparatus according to claim 1, wherein: The top of the moving frame (208) is fixedly connected with the bottom of the bottom block (108), the inner wall of one end of the bottom block (108) away from the plurality of first screws (115) is threadedly connected with a short screw (110), the outer wall of the top of the short screw (110) is rotatably connected with a top block (109), and the top of the top block (109) is fixedly connected with the bottom of the pressing block (101) away from the plurality of first screws (115).
7. The apparatus according to claim 1, wherein: The bottom of the steel pipe body (107) is movably connected with the top of the bottom block (108), the second pipes (103) are arranged in the steel pipe body (107), and the outer wall of the second pipe (103) is fixedly provided with a spray head.
8. The apparatus according to claim 1, wherein: The moving blocks (116) are fixedly connected with the limiting rods (114) at the top away from the steel pipe body (107), and the limiting rods (114) are slidably connected with the inner wall of the pressing block (101).