Pickling pretreatment device for galvanized steel pipe

Abstract

The utility model discloses a galvanized steel pipe pickling pretreatment device, and relates to the technical field of galvanized steel pipe pickling, the galvanized steel pipe pickling pretreatment device comprises a top frame, a pickling box and a second servo motor, the two ends of the outer walls of the two sides of the pickling box are provided with second pneumatic telescopic rods, and the output end of a driving motor is connected with a rotating rod through a driving shaft; first pneumatic telescopic rods are uniformly mounted on the outer walls of the two sides of the mounting frame from top to bottom, and one end of each first pneumatic telescopic rod is connected with a clamping block. The driving motor works to enable the rotating rod to drive the mounting frame to rotate at a constant speed in the pickling box, so that a steel pipe and water generate scouring force, meanwhile, the liquid pump works to extract acid liquor in the pickling box, the acid liquor enters the lifting pipe and then rushes out through holes in a plurality of hole pipes, the second servo motor works to enable the threaded rod to rotate, and screw-thread fit is achieved; the second moving sleeve can drive the hole pipe to move up and down circularly, so that the acid liquid flows to impact the steel pipe, and the problem of non-efficient pickling is solved.

Description

Technical Field

[0001] This utility model relates to the field of pickling technology for galvanized steel pipes, specifically to a pickling pretreatment device for galvanized steel pipes. Background Technology

[0002] Pickling is an essential pretreatment step before hot-dip galvanizing, crucial for ensuring high-quality galvanized products. Pickling galvanized pipe involves immersing it in acid to remove oxides and rust from its surface, exposing a clean metal surface. The resulting clean and roughened surface enhances the mechanical and chemical bonding between the zinc layer and the steel substrate during hot-dip galvanizing, ensuring good adhesion and corrosion resistance, and improving surface quality and service life. However, existing pickling pretreatment equipment lacks loading and unloading mechanisms, and the steel pipe remains stationary in the acid solution, leading to inefficient pickling. Therefore, this project was developed to address these issues. Utility Model Content

[0003] The purpose of this utility model is to provide a pickling pretreatment device for galvanized steel pipes, so as to solve the problem mentioned in the background art that the existing pickling pretreatment device for galvanized steel pipes does not have high pickling efficiency and loading / unloading functions.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a galvanized steel pipe pickling pretreatment device, comprising a top frame, a pickling tank, and a second servo motor. A control panel is installed on one side of the outer wall of the pickling tank. Second pneumatic telescopic rods are installed at both ends of the outer walls on both sides of the pickling tank, and the top ends of the second pneumatic telescopic rods are connected to the top frame. Top rods are connected to the inner sides of the top frame. A top plate is installed between the inner sides of the top rods, and a drive motor is installed at the top end of the top plate. The output end of the drive motor is connected to a rotating rod via a drive shaft, and the bottom end of the rotating rod is connected to a mounting frame. First pneumatic telescopic rods are evenly installed on both sides of the outer walls of the mounting frame from top to bottom, and a clamping block is connected to one end of each first pneumatic telescopic rod. A second servo motor is installed inside the pickling tank below, and the output end of the second servo motor is connected to a threaded rod via a drive shaft. A second movable sleeve is threaded onto the outer wall of the threaded rod.

[0005] Preferably, a lifting pipe is installed on the outer wall of one end of the second movable sleeve, and perforated pipes are evenly connected to the top end of the lifting pipe.

[0006] Preferably, a liquid pump is installed inside the pickling tank on one side of the second servo motor, and a telescopic hose is connected to one side of the liquid pump. One end of the telescopic hose is fixedly connected to the lifting pipe.

[0007] Preferably, the inner walls on both sides below the pickling tank are provided with limiting grooves, and both sides of the lifting pipe are movably connected to the limiting grooves through limiting blocks.

[0008] Preferably, the bottom end of the top plate is provided with a sliding groove, and both sides of the top end of the mounting bracket are movably connected to the sliding groove via pulleys.

[0009] Preferably, a first servo motor is installed at the top of the top rod, and the output end of the first servo motor is connected to a lead screw through a drive shaft. A first movable sleeve is threaded onto the outer wall of the lead screw, and one side of the first movable sleeve is fixedly connected to the top plate.

[0010] Preferably, a movable seat is connected to one side of the bottom end of the top rod, and a third servo motor is installed on the inner wall of the movable seat. The output end of the third servo motor is connected to a gear through a drive shaft, and a rack is meshed on the inner wall of the top frame on one side of the gear.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) This utility model provides a second pneumatic telescopic rod, a gear and a rack. The second pneumatic telescopic rod is used to move the mounting frame upward away from the pickling tank. The third servo motor is used to make the gear rotate. The gear meshes with the rack, causing the gear to drive the moving seat to move backward on the rack. At the same time, the mounting frame moves backward away from the top of the pickling tank. Then, the first servo motor is used to make the lead screw rotate. The screw engages, causing the first moving sleeve to move the top plate downward. At the same time, it moves the mounting frame downward. Then, the steel pipe in the mounting frame can be taken out. The reverse operation can make the steel pipe automatically enter the pickling tank for pickling, which solves the problem of not having the function of loading and unloading steel pipes.

[0013] (2) This utility model provides a drive motor, a liquid pump and a second moving sleeve. The drive motor drives the rotating rod to rotate the mounting frame at a constant speed in the pickling tank, so that the steel pipe and water generate a scouring force. At the same time, the liquid pump works to draw acid from the pickling tank. The acid enters the lifting pipe and then is flushed out through the holes on the multiple perforated pipes. The second servo motor works to rotate the threaded rod. The threaded engagement allows the second moving sleeve to drive the perforated pipes to move up and down in a cyclical manner, so that the acid flows and impacts the steel pipe, thus solving the problem of inefficient pickling. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the device of this utility model;

[0015] Figure 2 This is a top view of the top frame structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the clamping block structure of this utility model;

[0017] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Control panel; 2. Hole tube; 3. Top frame; 4. Top rod; 5. Lead screw; 6. First moving sleeve; 7. First servo motor; 8. Rotating rod; 9. Drive motor; 10. Top plate; 11. Mounting bracket; 12. First pneumatic telescopic rod; 13. Second pneumatic telescopic rod; 14. Pickling tank; 15. Lifting pipe; 16. Telescopic hose; 17. Liquid pump; 18. Second moving sleeve; 19. Second servo motor; 20. Threaded rod; 21. Clamping block; 22. Moving seat; 23. Rack; 24. Gear; 25. Third servo motor. Detailed Implementation

[0019] 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.

[0020] Example 1: Please refer to Figures 1-4 A galvanized steel pipe pickling pretreatment device includes a top frame 3, a pickling tank 14, and a second servo motor 19. A control panel 1 is installed on the outer wall of one side of the pickling tank 14. Second pneumatic telescopic rods 13 are installed at both ends of the outer walls of both sides of the pickling tank 14, and the top of the second pneumatic telescopic rods 13 are connected to the top frame 3. Top rods 4 are connected to the inner side of the top frame 3. A top plate 10 is installed between the inner sides of the top rods 4, and a drive motor 9 is installed at the top of the top plate 10. The output end of the drive motor 9 is connected to a rotating rod 8 through a drive shaft, and the bottom end of the rotating rod 8 is connected to a mounting frame 11. First pneumatic telescopic rods 12 are evenly installed on both outer walls of the mounting frame 11 from top to bottom, and a clamping block 21 is connected to one end of each first pneumatic telescopic rod 12. The second servo motor 19 is installed inside the pickling tank 14 below, and the output end of the second servo motor 19 is connected to a threaded rod 20 through a drive shaft. A second movable sleeve 18 is threadedly installed on the outer wall of the threaded rod 20.

[0021] A lifting pipe 15 is installed on the outer wall of one end of the second movable sleeve 18, and perforated pipes 2 are evenly connected to the top end of the lifting pipe 15.

[0022] A liquid pump 17 is installed inside the pickling tank 14 on one side of the second servo motor 19, and a telescopic hose 16 is connected to one side of the liquid pump 17. One end of the telescopic hose 16 is fixedly connected to the lifting pipe 15.

[0023] Limit grooves are provided on both inner walls below the pickling tank 14, and both sides of the lifting pipe 15 are movably connected to the limit grooves through limit blocks.

[0024] The bottom end of the top plate 10 is provided with a sliding groove, and both sides of the top end of the mounting bracket 11 are movably connected to the sliding groove via pulleys;

[0025] Specifically, such as Figure 1 and Figure 2 As shown, when using this structure, the drive motor 9 operates to make the rotating rod 8 drive the mounting bracket 11 to rotate at a constant speed in the pickling tank 14, so that the steel pipe and water generate a scouring force. At the same time, the liquid pump 17 operates to draw acid from the pickling tank 14. The acid enters the lifting pipe 15 and then is flushed out through the holes on the multiple perforated pipes 2. The second servo motor 19 operates to make the threaded rod 20 rotate. The threaded engagement allows the second moving sleeve 18 to drive the perforated pipes 2 to move up and down in a cyclical manner, so that the acid flows and impacts the steel pipe, making the pickling more efficient.

[0026] Example 2: A first servo motor 7 is installed at the top of the top rod 4, and the output end of the first servo motor 7 is connected to a lead screw 5 through a drive shaft. A first movable sleeve 6 is installed on the outer wall of the lead screw 5, and one side of the first movable sleeve 6 is fixedly connected to the top plate 10.

[0027] A movable seat 22 is connected to one side of the bottom end of the push rod 4, and a third servo motor 25 is installed on the inner wall of the movable seat 22. The output end of the third servo motor 25 is connected to a gear 24 through a drive shaft. A rack 23 is meshed on the inner wall of the push frame 3 on one side of the gear 24.

[0028] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, when using this structure, the second pneumatic telescopic rod 13 works to move the mounting frame 11 upward away from the pickling tank 14. The third servo motor 25 works to rotate the gear 24. The gear 24 meshes with the rack 23, causing the gear 24 to drive the moving seat 22 to move backward on the rack 23. At the same time, the mounting frame 11 moves backward away from the top of the pickling tank 14. Then, the first servo motor 7 works to rotate the lead screw 5. The threaded engagement causes the first moving sleeve 6 to move the top plate 10 downward, which in turn moves the mounting frame 11 downward. Then, the steel pipe inside the mounting frame 11 can be removed. The reverse operation can make the steel pipe automatically enter the pickling tank 14 for pickling, thus having the function of loading and unloading steel pipes.

[0029] Working principle: When using this device, the first pneumatic telescopic rods 12 on both sides work first, causing the clamping blocks 21 to be inserted into the inner side of both ends of the steel pipe to clamp and fix the steel pipe. The second pneumatic telescopic rod 13 works to move the mounting frame 11 downward into the pickling tank 14 for pickling.

[0030] Implementation steps for the first innovation point:

[0031] Step 1: The drive motor 9 is used to make the rotating rod 8 drive the mounting bracket 11 to rotate at a constant speed in the pickling tank 14, so that the steel pipe and water generate a scouring force.

[0032] Step 2: Simultaneously, the liquid pump 17 works to draw acid from the pickling tank 14. The acid enters the lifting pipe 15 and then flows out through the holes on the multiple perforated pipes 2. The second servo motor 19 works to rotate the threaded rod 20. The threaded engagement allows the second moving sleeve 18 to drive the perforated pipes 2 to move up and down in a circular motion, causing the acid to flow and impact the steel pipe, making the pickling more efficient.

[0033] Implementation steps for the second innovation point:

[0034] Step 1: The second pneumatic telescopic rod 13 is used to move the mounting bracket 11 upward away from the pickling tank 14. The third servo motor 25 is used to rotate the gear 24. The gear 24 meshes with the rack 23, causing the gear 24 to drive the moving seat 22 to move backward on the rack 23. At the same time, the mounting bracket 11 moves backward away from the top of the pickling tank 14.

[0035] Step 2: The first servo motor 7 is then used to rotate the lead screw 5. The threaded engagement causes the first moving sleeve 6 to move the top plate 10 downwards, which in turn moves the mounting frame 11 downwards. The steel pipe inside the mounting frame 11 can then be removed. The reverse operation can then automatically allow the steel pipe to enter the pickling tank 14 for pickling.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] 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. A pickling pretreatment device for galvanized steel pipe, comprising a top frame (3), a pickling tank (14) and a second servo motor (19), characterized in that: The control panel (1) is installed on one side of the outer wall of the pickling tank (14), the second pneumatic telescopic rod (13) is installed at both ends of the outer walls of the pickling tank (14), the top end of the second pneumatic telescopic rod (13) is connected with the top frame (3), the inner side of the top frame (3) is connected with the top rod (4), the inner side of the top rod (4) is installed with the top plate (10), the top end of the top plate (10) is installed with the driving motor (9), the output end of the driving motor (9) is connected with the rotating rod (8) through the driving shaft, the bottom end of the rotating rod (8) is connected with the mounting bracket (11), the first pneumatic telescopic rod (12) is uniformly installed on the outer walls of the mounting bracket (11) from top to bottom, one end of the first pneumatic telescopic rod (12) is connected with the clamping block (21), the second servo motor (19) is installed inside the pickling tank (14) below, the output end of the second servo motor (19) is connected with the threaded rod (20) through the driving shaft, and the outer wall of the threaded rod (20) is threadedly installed with the second moving sleeve (18).

2. A pickling pre-treatment apparatus for galvanised steel pipes according to claim 1, characterised in that: The outer wall of one end of the second moving sleeve (18) is installed with the lifting pipe (15), and the top end of the lifting pipe (15) is uniformly connected with the hole pipe (2).

3. A pickling pre-treatment apparatus for a galvanised steel tube according to claim 2, characterised in that: The liquid pump (17) is installed inside the pickling tank (14) on one side of the second servo motor (19), one side of the liquid pump (17) is connected with the telescopic hose (16), and one end of the telescopic hose (16) is fixedly connected with the lifting pipe (15).

4. A pickling pre-treatment apparatus for a galvanized steel pipe according to claim 2, characterized in that: The inner walls of the pickling tank (14) below are provided with limiting grooves, and the sides of the lifting pipe (15) are movably connected with the limiting grooves through limiting blocks.

5. The pickling pre-treatment apparatus for a galvanized steel pipe according to claim 1, characterized by: The bottom end of the top plate (10) is provided with a sliding groove, and the sides of the top end of the mounting bracket (11) are movably connected with the sliding groove through pulleys.

6. A pickling pre-treatment apparatus for a galvanized steel pipe according to claim 1, characterized in that: The top end of the top rod (4) is installed with the first servo motor (7), the output end of the first servo motor (7) is connected with the lead screw (5) through the driving shaft, the outer wall of the lead screw (5) is threadedly installed with the first moving sleeve (6), and one side of the first moving sleeve (6) is fixedly connected with the top plate (10).

7. A pickling pre-treatment apparatus for a galvanized steel pipe according to claim 1, characterized in that: One side of the bottom end of the top rod (4) is connected with the moving seat (22), the inner wall of the moving seat (22) is installed with the third servo motor (25), the output end of the third servo motor (25) is connected with the gear (24) through the driving shaft, and the inner wall of one side of the top frame (3) of the gear (24) is meshedly installed with the rack (23).

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