Steel pipe passivation device with uniform coating

Abstract

The utility model discloses a steel pipe passivation device with a uniform coating, and particularly relates to the technical field of steel pipe production passivation, the steel pipe passivation device comprises a device base, the top end of the device base is slidably connected with a polishing and smearing device, and the left side of the device base is fixedly connected with a fixed rotating part; the right side of the top end of the fixed rotating component extends to the position above the device base. According to the steel pipe passivation device with the uniform coating, steel pipes of different specifications can be internally fixed through the fixed rotating part, and the external expansion degree of the supporting and fixing assembly can be adjusted and controlled by adjusting an adjusting knob to be matched with a threaded adjusting column; after the surface of the steel pipe passes through the treatment liquid, redundant treatment liquid on the surface of the steel pipe can be intercepted through the smearing brush bristles, the steel pipe is passivated averagely to improve the passivation effect of the steel pipe, the smearing brush bristles can be replaced with a polishing material to polish the outer surface of the steel pipe to remove an oxide layer, and the passivation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of passivation of steel pipe production, in particular to a steel pipe passivation device with uniform coating. Background Technique

[0002] The natural oxide layer on the surface of the stainless steel pipe will be removed in the production process, exposing the fresh metal surface. At this time, passivation treatment can form a dense oxide film on its surface, which can effectively prevent the corrosive medium from directly contacting the metal, thereby greatly improving the corrosion resistance of the stainless steel pipe. In the passivation treatment, a passivation device needs to be used to ensure uniform treatment.

[0003] Chinese patent document CN207581940U discloses a steel pipe passivation device with uniform coating, including a passivation liquid pool, a frame-shaped shield, a high-pressure air pump, a passivation liquid delivery pump, a passivation liquid spray pipe, and an air drying pipe. The passivation liquid pool is arranged below the steel pipe conveying roller path, the frame-shaped shield is arranged opposite to the passivation liquid pool above the steel pipe conveying roller path, the passivation liquid spray pipe and the air drying pipe are arranged front and back in the frame-shaped shield, the high-pressure air pump is connected to the air drying pipe, one end of the passivation liquid delivery pump is connected to the passivation liquid pool, and the other end is connected to the passivation liquid spray pipe. There are two passivation liquid spray pipes, and the two passivation liquid spray pipes are arranged at intervals in the frame-shaped shield, both of which are annular passivation liquid spray pipes with spray holes formed thereon. The air drying pipe is an annular spray pipe with air holes formed thereon. The air drying pipe is an annular air drying pipe with air holes formed thereon.

[0004] Although the device in the above-mentioned document has a simple structure, the number of spray holes is small, resulting in the treatment liquid sprayed not being able to adhere to the surface of the steel pipe evenly. The remaining treatment liquid will make the passivation effect on the surface of the steel pipe uneven, making the appearance of the passivated steel pipe ugly. Moreover, the above device is simple and cannot treat the oxidized part of the steel pipe surface, so that the treatment liquid cannot contact the surface of the steel pipe to react, reducing the passivation effect. Content of the Utility Model

[0005] The purpose of the utility model is to provide a steel pipe passivation device with uniform coating to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A steel pipe passivation device with uniform coating, including a device base, a grinding and smearing device is slidably connected to the top end of the device base, and a fixed rotating component is fixedly connected to the left side of the device base, and the right side of the top end of the fixed rotating component extends above the device base.

[0007] Preferably, the fixed rotating component includes a component bracket. The lower side of the right end of the component bracket is fixedly connected to the left end of the device base. The upper side of the right end of the component bracket is rotatably connected to a rotating guide disc. The top of the component bracket is rotatably connected through a threaded adjustment column. The right end of the threaded adjustment column is fixedly connected to a support and fixation component. The outer surface of the threaded adjustment column is threadedly connected to an adjustment knob. The right end of the adjustment knob is rotatably connected to the upper side of the left end of the component bracket. A cross-shaped limiting groove is provided at the right end of the rotating guide disc.

[0008] Preferably, the support and fixation component includes a movable support column. The left end of the movable support column passes through and is slidably connected to the middle of the rotating guide disc. The end of the movable support column close to the rotating guide disc is fixedly connected to the right end of the threaded adjustment column. The movable support column is a cross-shaped column. Two support connecting rods are rotatably connected to both sides of the outer edge of the movable support column. The four support connecting rods in the same direction away from the movable support column are jointly rotatably connected to an arc-shaped support block. The left end of the arc-shaped support block slides in the limiting groove.

[0009] Preferably, the arc-shaped support block is T-shaped, and the outer arc of the arc-shaped support block is equal to the arc of the rotating guide disc.

[0010] Preferably, an arc-shaped liquid storage pool is provided at the top of the device base. Baffle grooves are provided on both sides of the liquid storage pool. A buckle groove is provided at the right end of the device base.

[0011] Preferably, the grinding and coating device includes two embedded support blocks. The distance between the tops of the two embedded support blocks is less than the distance between the bottoms, showing a triangular shape. A coating brush is fixedly connected to the top of the embedded support block. Pressing and fixing blocks are jointly slidably connected to the left and right ends of the two embedded support blocks. The embedded support blocks are slidably connected in the baffle grooves, and the tops of the embedded support blocks extend outside the baffle grooves.

[0012] Preferably, the pressing and fixing block includes a pressing block. The opposite sides of the two pressing blocks are respectively slidably connected to the left and right ends of the embedded support block. The lower side of the end of the pressing block close to the device base is slidably connected to a fixing pin. The fixing pin can enter the buckle groove. The end of the fixing pin away from the device base extends into the pressing block. A plurality of fixing springs are fixedly connected to the end of the fixing pin away from the device base. The ends of the fixing springs away from the fixing pin are fixedly connected to the side of the pressing block inside away from the fixing pin. A moving handle is fixedly connected to the end of the fixing pin close to the fixing spring. The moving handle slides on the side of the pressing block away from the device base, and the end of the moving handle away from the fixing pin extends outside the pressing block.

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

[0014] 1. The utility model can internally fix steel pipes of different specifications through a fixed rotating component, and can adjust and control the outward expansion degree of the support and fixing component by adjusting the adjusting knob in cooperation with the threaded adjusting column, so as to internally fix the steel pipe to facilitate the passivation treatment of the outer surface of the steel pipe. At the same time, the threaded adjusting column can rotate the rotating guide disc and the support and fixing component, making it more convenient to passivate the steel pipe, and can cooperate with the grinding and coating device to scrape off the excess liquid after touching the treatment liquid, so that the passivation of the steel pipe is uniform to improve the passivation effect of the steel pipe.

[0015] 2. The utility model can load and process the liquid through the device base and the grinding and coating device to passivate the outer surface of the steel pipe. After the surface of the steel pipe passes through the treatment liquid, the excess treatment liquid on the surface of the steel pipe can be intercepted by the coating brush bristles to ensure the uniform passivation effect of the steel pipe. By pressing down the fixing block, the position of the embedded support block can be fixed to prevent the loss of the treatment liquid, and the coating brush bristles can be replaced with a grinding material to grind the outer surface of the steel pipe to remove the oxide layer and improve the passivation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the utility model,

[0017] Figure 2 is a schematic structural diagram of the fixed rotating component of the utility model,

[0018] Figure 3 is a schematic structural diagram of the support and fixing component of the utility model,

[0019] Figure 4 is a schematic structural diagram of the grinding and coating device of the utility model,

[0020] Figure 5 is a schematic structural diagram of the pressing-down fixing block of the utility model.

[0021] In the figure: 1. Fixed rotating component; 11. Component bracket; 12. Adjusting knob; 13. Threaded adjusting column; 14. Rotating guide disc; 15. Support and fixing component; 151. Arc support block; 152. Support connecting rod; 153. Moving support column; 2. Grinding and coating device; 21. Coating brush bristles; 22. Embedded support block; 23. Pressing-down fixing block; 231. Fixed pin; 232. Pressing-down block; 233. Fixed spring; 234. Moving handle; 3. Device base. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1 , the present invention provides a technical solution for a steel pipe passivation device with uniform coating: a steel pipe passivation device with uniform coating, including a device base 3. The device base 3 serves as a base to support the operation of the entire device. A grinding and smearing device 2 is slidably connected to the top of the device base 3. The grinding and smearing device 2 can evenly smear the excess liquid on the outer surface of the steel pipe to ensure the passivation effect. A fixed rotation component 1 is fixedly connected to the left side of the device base 3. The right side of the top of the fixed rotation component 1 extends above the device base 3. The fixed rotation component 1 can fix the steel pipe from the inside and perform passivation treatment on it.

[0024] Please refer to Figure 2 , the fixed rotation component 1 includes a component support 11. The lower side of the right end of the component support 11 is fixedly connected to the left end of the device base 3. A rotary guide disk 14 is rotatably connected to the upper side of the right end of the component support 11. A threaded adjustment column 13 is rotatably connected through the top of the component support 11. A support and fixation assembly 15 is fixedly connected to the right end of the threaded adjustment column 13. The outer surface of the threaded adjustment column 13 is threadedly connected with an adjustment knob 12. The right end of the adjustment knob 12 is rotatably connected to the upper side of the left end of the component support 11. A cross-shaped limit groove is provided at the right end of the rotary guide disk 14.

[0025] By rotating the adjustment knob 12, the threaded adjustment column 13 can be driven to move, thereby controlling the expansion and contraction of the support and fixation assembly 15 to fix the inside of steel pipes of different specifications, and the support and fixation assembly 15 can be driven to rotate by rotating the rotary guide disk 14, which is convenient for driving the steel pipe to perform passivation treatment on the outer surface.

[0026] Please refer to Figure 3 , the support and fixation assembly 15 includes a moving support column 153. The left end of the moving support column 153 penetrates and is slidably connected to the middle of the rotary guide disk 14. The end of the moving support column 153 close to the rotary guide disk 14 is fixedly connected to the right end of the threaded adjustment column 13. The moving support column 153 is a cross-shaped column. Two support connecting rods 152 are rotatably connected to both sides of the outer edge of the moving support column 153. The ends of the four support connecting rods 152 in the same direction away from the moving support column 153 are jointly rotatably connected to an arc support block 151. The left end of the arc support block 151 slides in the limit groove.

[0027] By adjusting the knob 12, the threaded adjustment column 13 is adjusted to drive the movable support column 153 to slide in the middle of the rotary guide disc 14. The support connecting rod 152 keeps the arc support block 151 parallel to the movable support column 153. When the movable support column 153 moves towards the rotary guide disc 14, the arc support block 151 will expand outward towards the outside of the rotary guide disc 14 due to the restriction of the limit groove and the connection of the support connecting rod 152, so as to support and fix the steel pipe from the inside to the surrounding.

[0028] Please refer to Figure 3 , the arc support block 151 is T-shaped, and the outer arc of the arc support block 151 is equal to the arc of the rotary guide disc 14. The arc of the arc support block 151 can make the arc support block 151 adapt to steel pipes of more specifications and improve the fitting degree.

[0029] Please refer to Figure 4 , an arc-shaped liquid storage pool is opened at the top of the device base 3, baffle slots are opened on both sides of the liquid storage pool, and a buckle slot is opened at the right end of the device base 3.

[0030] Please refer to Figure 4 , the grinding and coating device 2 includes two embedded support blocks 22. The distance between the tops of the two embedded support blocks 22 is less than the distance between the bottoms, showing a triangular shape. A coating brush 21 is fixedly connected to the top of the embedded support block 22. The left and right ends of the two embedded support blocks 22 are both slidably connected with a downward pressing and fixing block 23. The embedded support block 22 is slidably connected in the baffle slot, and the top of the embedded support block 22 extends outside the baffle slot.

[0031] Through the downward pressing and fixing block 23 and the embedded support block 22, a liquid storage space can be formed around the liquid storage pool at the top of the device base 3. The passivation liquid can be passivated when contacting the surface of the steel pipe, and the excess liquid can be evenly applied through the coating brush 21.

[0032] Please refer to Figure 5 , the downward pressing and fixing block 23 includes a downward pressing block 232. The opposite sides of the two downward pressing blocks 232 are respectively slidably connected to the left and right ends of the embedded support block 22. A fixed plug 231 is slidably connected to the lower side of one end of the downward pressing block 232 close to the device base 3. The fixed plug 231 can enter the buckle slot. One end of the fixed plug 231 away from the device base 3 extends into the downward pressing block 232. A plurality of fixed springs 233 are fixedly connected to one end of the fixed plug 231 away from the device base 3. One end of the fixed spring 233 away from the fixed plug 231 is fixedly connected to the side of the inside of the downward pressing block 232 away from the fixed plug 231. A moving handle 234 is fixedly connected to one end of the fixed plug 231 close to the fixed spring 233. The moving handle 234 slides on the side of the downward pressing block 232 away from the device base 3. One end of the moving handle 234 away from the fixed plug 231 extends outside the downward pressing block 232.

[0033] By pulling the connection between the fixed bolt 231 and the buckle groove, the downward pressing block 232 can be prevented from displacing. Under the continuous pushing of the fixed spring 233, the connection state of the fixed bolt 231 is ensured. When the movable handle 234 is pulled, the connection can be released to replace the embedded support block 22, facilitating the replacement of components as needed.

[0034] Working principle:

[0035] First, select the required embedded support block 22 and the material of the coating brush 21 and install them into the baffle groove. Then, fix the position of the embedded support block 22 by pressing down the fixed block 23. Next, slip the steel pipe over the outer surface of the support and fixing assembly 15. By rotating, the arc support block 151 expands outward driven by the movable support column 153 until it supports the steel pipe of the support and fixing column. By rotating the rotation guide disk 14, the surface of the steel pipe comes into contact with the coating brush 21 for grinding or passivation. After passivation, rotate the adjustment knob 12 in the reverse direction to make the arc support block 151 contract inward and then remove the steel pipe.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel pipe passivation device with uniform coating, comprising a device base (3), characterized in that: The top of the device base (3) is slidably connected to a polishing and coating device (2), the left side of the device base (3) is fixedly connected to a fixed rotating component (1), and the top right side of the fixed rotating component (1) extends above the device base (3).

2. A steel pipe passivation device with uniform coating according to claim 1, characterized in that: The fixed rotating component (1) comprises a component bracket (11), the lower right end of the component bracket (11) is fixedly connected to the left end of the device base (3), the upper right end of the component bracket (11) is rotatably connected to a rotating guide disk (14), the top of the component bracket (11) is penetrated by a threaded adjustment column (13) rotatably connected, the right end of the threaded adjustment column (13) is fixedly connected to a supporting fixing component (15), the outer surface of the threaded adjustment column (13) is threadedly connected to an adjusting knob (12), the right end of the adjusting knob (12) is rotatably connected to the upper left end of the component bracket (11), and the right end of the rotating guide disk (14) is provided with a cross-shaped limiting groove.

3. A steel pipe passivation device with uniform coating according to claim 2, characterized in that: The supporting and fixing assembly (15) comprises a movable supporting column (153), the left end of the movable supporting column (153) passes through and is slidably connected to the middle of the rotating guide disk (14), the end of the movable supporting column (153) close to the rotating guide disk (14) is fixedly connected to the right end of the threaded adjustment column (13), the movable supporting column (153) is in the form of a cross column, and two supporting connecting rods (152) are rotatably connected to both sides of the outer edge of the movable supporting column (153), and the four supporting connecting rods (152) in the same direction are rotatably connected to a circular arc supporting block (151) at one end away from the movable supporting column (153), and the left end of the circular arc supporting block (151) slides in the limiting groove.

4. A steel pipe passivation device with uniform coating according to claim 3, characterized in that: The circular arc support block (151) is T-shaped, and the outer curvature of the circular arc support block (151) is equal to the curvature of the rotating guide plate (14).

5. The steel pipe passivation device with uniform coating according to claim 2, characterized in that: An arc-shaped liquid storage tank is provided at the top of the device base (3), baffle grooves are provided on both sides of the liquid storage tank, and a buckle groove is provided at the right end of the device base (3).

6. A steel pipe passivation device with uniform coating according to claim 5, characterized in that: The polishing and smearing device (2) comprises two embedded support blocks (22), the top distance of the two embedded support blocks (22) is smaller than the bottom distance and forms a triangle, the top of the embedded support block (22) is fixedly connected with smearing bristles (21), the left and right ends of the two embedded support blocks (22) are slidably connected with a downward pressing fixed block (23), the embedded support block (22) is slidably connected in the baffle groove, and the top of the embedded support block (22) extends to the outside of the baffle groove.

7. A steel pipe passivation device with uniform coating according to claim 6, characterized in that: The pressing fixed block (23) comprises a pressing block (232), and the two pressing blocks (232) are respectively slidably connected to the left and right ends of the embedded support block (22) at opposite sides. The lower side of one end of the pressing block (232) close to the device base (3) is slidably connected with a fixing pin (231), and the fixing pin (231) can enter the buckle groove. The end of the fixing pin (231) away from the device base (3) extends to the inside of the pressing block (232), and the end of the fixing pin (231) away from the device base (3) is fixedly connected with A plurality of fixing springs (233), one end of the fixing spring (233) away from the fixing pin (231) is fixedly connected to a side of the lower pressing block (232) away from the fixing pin (231), one end of the fixing pin (231) close to the fixing spring (233) is fixedly connected to a moving handle (234), the moving handle (234) slides on a side of the lower pressing block (232) away from the device base (3), and one end of the moving handle (234) away from the fixing pin (231) extends to the outside of the lower pressing block (232).

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