Automatic pickling line lifting rack for pickling steel pipes

Abstract

The invention relates to the technical field of steel pipe pickling, in particular to a steel pipe pickling automatic pickling line lifting rack which comprises a moving mechanism. The device further comprises a lifting mechanism and a cleaning mechanism, and the lifting mechanism and the cleaning mechanism are both installed on the moving mechanism. The moving mechanism is used for adjusting the positions of the lifting mechanism and the cleaning mechanism, the lifting mechanism is used for lifting the height, and the cleaning mechanism is used for cleaning a pickling solution in a steel pipe; the position of the lifting mechanism is adjusted through the moving mechanism, then the lifting mechanism stretches into the pickling tank to fish out a steel pipe in the pickling tank, then the cleaning mechanism is matched with the lifting mechanism to discharge pickling liquid in the steel pipe, then the position of the lifting mechanism is adjusted again through the moving mechanism, and then the lifting mechanism descends and resets. And the steel pipe is placed at a designated position, so that the practicability of equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe pickling, in particular to a lifting rack of an automatic pickling line for pickled steel pipes. Background Art

[0002] Steel pipe pickling is an important surface treatment process, which is mainly used to remove scale, rust and other impurities on the surface of steel pipes to improve the surface quality and corrosion resistance of steel pipes. Generally, steel pipe pickling is carried out by lifting the pickled steel pipes, and in order to improve the automation of the production line, the steel pipes are generally bundled together and then lifted for pickling.

[0003] However, during the pickling process, it was found that when the above method was used for pickling, the steel pipes were squeezed together, affecting the pickling effect. If the steel pipes were spread out, it would be difficult to realize the automation of the production line, and it would be inconvenient to discharge the pickling liquid in the steel pipes after pickling, resulting in poor practicality. Therefore, it is urgent to improve the above problems. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a lifting rack for an automatic pickling line for pickling steel pipes, which is capable of adjusting the position of a lifting mechanism by a moving mechanism, and then the lifting mechanism is extended into the pickling tank to fish out the steel pipes in the pickling tank, and then the pickling liquid in the steel pipes is discharged by cooperating with the lifting mechanism through the cleaning mechanism. Then, the position of the lifting mechanism is adjusted again by the moving mechanism, and then the lifting mechanism is lowered and reset to place the steel pipes in a designated position, thereby improving the practicality of the equipment.

[0005] The pickling steel pipe automatic pickling line lifting rack of the present invention comprises a moving mechanism; a lifting mechanism and a cleaning mechanism, and the lifting mechanism and the cleaning mechanism are both installed on the moving mechanism; The moving mechanism adjusts the positions of the lifting mechanism and the cleaning mechanism, the lifting mechanism performs a lifting operation, and the cleaning mechanism cleans the pickling liquid in the steel pipe; The position of the lifting mechanism is adjusted through the moving mechanism, and then the lifting mechanism is extended into the pickling tank to fish out the steel pipe in the pickling tank, and then the pickling liquid in the steel pipe is discharged through the cleaning mechanism and the lifting mechanism, and then the position of the lifting mechanism is adjusted again through the moving mechanism, and then the lifting mechanism is lowered and reset to place the steel pipe in the designated position, thereby improving the practicability of the equipment.

[0006] Preferably, the moving mechanism includes two groups of slide rails, two groups of guide frames, multiple groups of track wheels, two groups of guide rails, two groups of first sliders, two groups of lead screws, a first reducer, a first motor and a lifting mechanism, the two groups of first sliders are respectively slidably mounted on the two groups of guide rails, one end of the two groups of lead screws are respectively rotatably mounted on one end of the two groups of guide rails, the other ends of the two groups of lead screws respectively pass through the two groups of first sliders, and the other ends of the two groups of lead screws are respectively rotatably connected to the other ends of the two groups of guide rails, the surfaces of the two groups of lead screws are respectively threadedly connected to the middle parts of the two groups of first sliders, the two groups of guide frames are respectively mounted on the two groups of first sliders, the multiple groups of track wheels are respectively mounted on the bottoms of the two groups of guide frames, and the multiple groups of track wheels The two guide rails roll on the two groups respectively, the first reducer is installed on the other end of the two guide rails, and the output ends of the two first reducers are connected to the other end of the two lead screws respectively, the first motor is installed on the first reducer, and the output shaft of the first motor is connected to the input end of the first reducer, and the lifting mechanism is installed on the two guide frames and the lifting mechanism; turn on the first motor, and the two lead screws rotate through the transmission of the first reducer, driving the two first sliders to slide on the two guide rails respectively, and at the same time, multiple groups of track wheels roll on the two guide rails respectively, to adjust the position of the lifting mechanism, and adjust the height of the lifting mechanism through the lifting mechanism, thereby improving the practicability of the equipment.

[0007] Preferably, the lifting mechanism includes two groups of racks, multiple groups of second sliders, two groups of gears and two groups of second motors, the two groups of racks are respectively installed on the two groups of guide frames, the multiple groups of second sliders are all installed on the lifting mechanism, and the multiple groups of second sliders are respectively slidably connected with the two groups of guide frames, the two groups of gears are rotatably installed on the lifting mechanism, the two groups of second motors are fixedly installed on the lifting mechanism, and the output shafts of the two groups of second motors are respectively connected to the front ends of the two groups of gears, and the side ends of the two groups of gears are respectively meshed and connected with the two groups of racks; the two groups of second motors are turned on, and the two groups of gears are respectively meshed and transmitted with the two groups of racks, so that the multiple groups of second sliders slide on the two groups of guide frames respectively, and the height of the lifting mechanism is adjusted, thereby improving the practicality of the equipment.

[0008] Preferably, the lifting mechanism includes a driving mechanism, a frame, multiple groups of support tubes, multiple groups of first bevel gears, multiple groups of guide columns, multiple groups of grabbing rods and multiple groups of limiting bolts. The frame is installed on multiple groups of second sliders, the driving mechanism is installed on the frame, multiple groups of support tubes are rotating tubes installed on the frame, multiple groups of first bevel gears are respectively installed on the top of multiple groups of support tubes, multiple groups of guide columns are respectively slidably installed in multiple groups of support tubes, and multiple groups of through holes are provided on multiple groups of guide columns, multiple groups of limiting bolts are respectively inserted into the through holes of multiple groups of guide columns, and multiple groups of grabbing rods are respectively installed on the bottom of multiple groups of guide columns; the multiple groups of limiting bolts are respectively inserted into the through holes of multiple groups of guide columns, and the through holes of the limiting bolts on the right side are lower than the through holes of other limiting bolts, and the two groups are respectively inserted in the through holes through multiple groups of second sliders. The guide frame slides downward, and multiple groups of grabbing rods extend into the pickling tank, and the bottom ends of the multiple groups of grabbing rods are supported on the bottom of the pickling tank. Then, the multiple groups of second sliders continue to slide downward, so that the multiple groups of guide columns slide in the multiple groups of support tubes respectively. Then, the tops of the multiple groups of grabbing rods contact the bottom ends of the multiple groups of support tubes, and then the multiple groups of first bevel gears are driven to rotate through the driving mechanism, so that the multiple groups of grabbing rods on the rear side rotate forward 90°, and the multiple groups of grabbing rods on the front side rotate reversely 90°, and the bottoms of the multiple groups of grabbing rods are moved to the bottom of the steel pipe. Then, the multiple groups of second sliders slide upward, so that the multiple groups of grabbing rods pick up the steel pipe in the pickling tank, and because the through hole of the limit bolt on the right side is higher than that of other limit bolts, the steel pipe is tilted to the left, which is convenient for the acid in the steel pipe to flow out, thereby improving the practicability of the equipment.

[0009] Preferably, the driving mechanism includes an electric control box, a second reducer, a third motor, a first transmission shaft, a second bevel gear, two groups of second transmission shafts, two groups of third bevel gears, two groups of fourth bevel gears, two groups of third transmission shafts, two groups of fifth bevel gears and multiple groups of sixth bevel gears. The electric control box and the second reducer are both installed on the frame, the third motor is installed on the second reducer, and the output shaft of the third motor is connected with the input end of the second reducer, the second bevel gear is installed on the output end of the second reducer through the first transmission shaft, the two groups of second transmission shafts and the two groups of third transmission shafts are both rotatably installed on the frame, the two groups of third bevel gears are respectively installed on one end of the two groups of second transmission shafts, the two groups of fourth bevel gears are respectively installed on the other end of the two groups of second transmission shafts, and the two groups of fourth bevel gears are both meshed and connected with the second bevel gears. Two groups of fifth bevel gears are respectively installed on one end of two groups of third transmission shafts, and the two groups of fifth bevel gears are respectively meshed and connected with the two groups of third bevel gears, and multiple groups of sixth bevel gears are respectively mounted on multiple groups of third transmission shafts, and multiple groups of sixth bevel gears are respectively meshed and connected with multiple groups of first bevel gears; the third motor and the second motor are provided with electric energy through the second reducer, and the third motor is operated and transmitted through the second reducer, so that the first transmission shaft drives the second bevel gear to rotate, and the second bevel gear is meshed and transmitted with the two groups of fourth bevel gears to rotate the two groups of second transmission shafts, and then the two groups of third bevel gears are respectively meshed and transmitted with the two groups of fifth bevel gears to make the two groups of third transmission shafts rotate in opposite directions, and then the multiple groups of sixth bevel gears are respectively meshed and transmitted with the multiple groups of first bevel gears to drive the multiple groups of grabbing rods to rotate, thereby improving the practicality of the equipment.

[0010] Preferably, the cleaning mechanism includes a guide plate, a water spray pipe, a three-way pipe, an electric control valve, a compression mechanism and a clearing mechanism, the guide plate is installed on the left guide frame, the water spray pipe is installed on the right guide frame, and a plurality of groups of high-pressure nozzles are arranged on the water spray pipe, the electric control valve is installed on the water spray pipe through the three-way pipe, the clearing mechanism is installed on the three-way pipe, and the compression mechanism is installed on the electric control valve; the air is compressed by the compression mechanism, and in the process of the plurality of groups of second sliding blocks sliding upward, the air in the compression mechanism flows through the electric control valve and the three-way pipe in turn into the water spray pipe, so that the plurality of groups of high-pressure nozzles on the water spray pipe spray air into the steel pipe, so that the pickling liquid in the steel pipe is quickly discharged, and at the same time, the discharged pickling liquid is blocked by the guide plate, so that the pickling liquid flows back into the pickling tank, thereby improving the practicability of the equipment.

[0011] Preferably, the clearing mechanism includes a pressure regulating cylinder, a piston and a telescopic motor, the pressure regulating cylinder is installed on the three-way pipe, the piston is slidably installed in the pressure regulating cylinder, the telescopic motor is installed on the top of the pressure regulating cylinder, and the bottom end of the telescopic motor is connected to the top end of the piston; when multiple groups of high-pressure nozzles on the water spray pipe are blocked, the electric control valve is closed, and the telescopic motor is quickly extended downward to make the piston slide downward quickly, so that the air in the pressure regulating cylinder is pressurized, and the high-pressure air enters the three-way pipe, impacting the multiple groups of high-pressure nozzles on the water spray pipe, and clearing the high-pressure nozzles on the multiple groups of water spray pipes, or the telescopic motor is quickly contracted to quickly suck the air in the three-way pipe and the water spray pipe into the pressure regulating cylinder to clear the high-pressure nozzles on the multiple groups of water spray pipes, thereby improving the practicality of the equipment.

[0012] Preferably, the compression mechanism includes a neutralization box, a one-way valve, an air supply pipe, a circulation pump, a circulation pipe, multiple groups of atomizing nozzles, multiple groups of baffles, an air compressor and a connecting hose, the one-way valve is installed on the neutralization box, the air supply pipe is installed on the one-way valve, and the air supply pipe is located inside the neutralization box, multiple groups of jet holes are provided on the air supply pipe, the circulation pump is installed at the side end of the neutralization box, and the water suction port of the circulation pump is communicated with the inside of the neutralization box, one end of the circulation pipe is connected to the discharge port of the circulation pump, and the other end of the circulation pipe extends to the inside of the neutralization box, multiple groups of atomizing nozzles are installed on the circulation pipe, multiple groups of baffles are installed inside the neutralization box, and multiple groups of baffles are located above the multiple groups of atomizing nozzles, the air compressor is installed on the top of the neutralization box, and the air suction port of the air compressor is communicated with the inside of the neutralization box, and the exhaust port of the air compressor is connected to the inside of the neutralization box through a connecting hose. The feed pipe is connected with the one-way valve, and the neutralizing liquid is discharged into the neutralization box through the one-way valve, and the neutralizing liquid in the neutralization box grinds the water suction port of the circulation pump, and then the feed pipe is disconnected from the one-way valve, and the air compressor is turned on to suck out the air in the neutralization box and compress it to form a negative pressure environment inside the neutralization box. Then the one-way valve is opened to discharge the air into the air supply pipe, and the air is discharged into the neutralizing liquid through multiple groups of jet holes on the air supply pipe to neutralize the acidic substances in the air. At the same time, the circulation pump is running to discharge the neutralizing liquid into the circulation pipe, and the neutralizing liquid is sprayed out by multiple groups of atomizing nozzles to neutralize the rising air for the second time. Then the air flows through multiple groups of baffles to reduce the humidity of the air. At the same time, the air compressor discharges the compressed air into the three-way pipe through the connecting hose, thereby improving the practicability of the equipment.

[0013] Preferably, the surfaces of the multiple groups of grabbing rods are all covered with EPDM rubber sleeves, thereby improving the corrosion resistance of the multiple groups of grabbing rods.

[0014] Preferably, the rack is supported by welding of hollow square tubes, so that the weight of multiple sets of racks is reduced, thereby improving the practicability of the equipment.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The steel pipes scattered in the pickling tank can be easily fished out through the lifting mechanism. There is no need to bundle the steel pipes together and put them into the pickling tank. The pickling effect of the scattered steel pipes is better, which improves the convenience and pickling effect of the steel pipes. 2. The lifting mechanism cooperates with the cleaning structure to facilitate the cleaning of the pickling liquid in the steel pipe during the lifting process; 3. By neutralizing the air that needs to be compressed, the corrosion of acidic gases on the equipment can be reduced and the service life of the equipment can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a first isometric structural schematic diagram of the present invention; Figure 2 is a second isometric structural schematic diagram of the present invention; Figure 3 It is a front view structural schematic diagram of the present invention; Figure 4 It is a first axonometric enlarged structural schematic diagram of the lifting mechanism of the present invention; Figure 5 It is a second axonometric enlarged structural schematic diagram of the lifting mechanism of the present invention; Figure 6 It is a front view enlarged structural schematic diagram of the support tube and the material grabbing rod and other structures of the present invention; Figure 7 The present invention Figure 6 A schematic diagram of the enlarged structure of part A; Figure 8 It is a first axonometric enlarged structural schematic diagram of the moving mechanism of the present invention; Fig. 9 It is a second axonometric enlarged structural schematic diagram of the moving mechanism of the present invention; Fig.10 It is a front view cross-sectional enlarged structural schematic diagram of the blockage clearing mechanism of the present invention; Fig.11 It is a front view cross-sectional enlarged structural schematic diagram of the compression mechanism of the present invention; Markings in the attached drawings: 1, slide rail; 2, guide frame; 3, track wheel; 4, guide rail; 5, first slider; 6, lead screw; 7, first reducer; 8, first motor; 9, rack; 10, second slider; 11, gear; 12, second motor; 13, frame; 14, support pipe; 15, first bevel gear; 16, guide column; 17, grab bar; 18, limit bolt; 19, electric control box; 20, second reducer; 21, third motor; 22, first transmission shaft; 23, second bevel gear; 24. Second transmission shaft; 25. Third bevel gear; 26. Fourth bevel gear; 27. Third transmission shaft; 28. Fifth bevel gear; 29. ​​Sixth bevel gear; 30. Guide plate; 31. Water spray pipe; 32. Three-way pipe; 33. Electric control valve; 34. Pressure regulating cylinder; 35. Piston; 36. Telescopic motor; 37. Neutralization box; 38. One-way valve; 39. Air pipe; 40. Circulation pump; 41. Circulation pipe; 42. Atomizing nozzle; 43. Baffle; 44. Air compressor; 45. Connecting hose. DETAILED DESCRIPTION

[0017] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive. Embodiment 1

[0018] like Figures 1 to 11 As shown, the automatic pickling line for pickling steel pipes has a lifting rack, including a moving mechanism; a lifting mechanism and a cleaning mechanism, and the lifting mechanism and the cleaning mechanism are both installed on the moving mechanism; The moving mechanism adjusts the positions of the lifting mechanism and the cleaning mechanism, the lifting mechanism performs a lifting operation, and the cleaning mechanism cleans the pickling liquid in the steel pipe; The mobile mechanism includes two sets of slide rails 1, two sets of guide frames 2, multiple sets of track wheels 3, two sets of guide rails 4, two sets of first sliders 5, two sets of lead screws 6, a first reducer 7, a first motor 8 and a lifting mechanism. The two sets of first sliders 5 are respectively slidably mounted on the two sets of guide rails 4, one end of the two sets of lead screws 6 are respectively rotatably mounted on one end of the two sets of guide rails 4, the other ends of the two sets of lead screws 6 respectively pass through the two sets of first sliders 5, and the other ends of the two sets of lead screws 6 are respectively rotatably connected to the other ends of the two sets of guide rails 4, and the surfaces of the two sets of lead screws 6 are respectively connected to the surfaces of the two sets of first sliders 5. The middle part is threadedly connected, two groups of guide frames 2 are respectively installed on two groups of first sliders 5, multiple groups of track wheels 3 are respectively installed on the bottom of the two groups of guide frames 2, and the multiple groups of track wheels 3 roll on the two groups of slide rails 1, the first reducer 7 is installed on the other end of the two groups of guide rails 4, and the output ends of the two groups of first reducers 7 are respectively connected to the other ends of the two groups of lead screws 6, the first motor 8 is installed on the first reducer 7, and the output shaft of the first motor 8 is connected to the input end of the first reducer 7, and the lifting mechanism is installed on the two groups of guide frames 2 and the lifting mechanism; The lifting mechanism includes two groups of racks 9, multiple groups of second sliders 10, two groups of gears 11 and two groups of second motors 12. The two groups of racks 9 are respectively installed on the two groups of guide frames 2, the multiple groups of second sliders 10 are all installed on the lifting mechanism, and the multiple groups of second sliders 10 are respectively slidably connected with the two groups of guide frames 2, the two groups of gears 11 are rotatably installed on the lifting mechanism, the two groups of second motors 12 are fixedly installed on the lifting mechanism, and the output shafts of the two groups of second motors 12 are respectively connected to the front ends of the two groups of gears 11, and the side ends of the two groups of gears 11 are respectively meshed and connected with the two groups of racks 9; The lifting mechanism includes a driving mechanism, a frame 13, multiple groups of support tubes 14, multiple groups of first bevel gears 15, multiple groups of guide columns 16, multiple groups of grabbing rods 17 and multiple groups of limiting bolts 18. The frame 13 is installed on multiple groups of second sliders 10, the driving mechanism is installed on the frame 13, multiple groups of support tubes 14 are rotating tubes installed on the frame 13, multiple groups of first bevel gears 15 are respectively installed on the top of multiple groups of support tubes 14, multiple groups of guide columns 16 are respectively slidably installed in multiple groups of support tubes 14, and multiple groups of through holes are provided on the multiple groups of guide columns 16, multiple groups of limiting bolts 18 are respectively inserted into the through holes of multiple groups of guide columns 16, and multiple groups of grabbing rods 17 are respectively installed at the bottom of multiple groups of guide columns 16; The driving mechanism includes an electric control box 19, a second reducer 20, a third motor 21, a first transmission shaft 22, a second bevel gear 23, two sets of second transmission shafts 24, two sets of third bevel gears 25, two sets of fourth bevel gears 26, two sets of third transmission shafts 27, two sets of fifth bevel gears 28 and multiple sets of sixth bevel gears 29. The electric control box 19 and the second reducer 20 are both mounted on the frame 13, the third motor 21 is mounted on the second reducer 20, and the output shaft of the third motor 21 is connected to the input end of the second reducer 20, the second bevel gear 23 is mounted on the output end of the second reducer 20 through the first transmission shaft 22, and the two sets of second transmission shafts 2 4 and two groups of third transmission shafts 27 are rotatably mounted on the frame 13, two groups of third bevel gears 25 are respectively mounted on one end of the two groups of second transmission shafts 24, two groups of fourth bevel gears 26 are respectively mounted on the other end of the two groups of second transmission shafts 24, and the two groups of fourth bevel gears 26 are meshed and connected with the second bevel gears 23, two groups of fifth bevel gears 28 are respectively mounted on one end of the two groups of third transmission shafts 27, and the two groups of fifth bevel gears 28 are respectively meshed and connected with the two groups of third bevel gears 25, multiple groups of sixth bevel gears 29 are respectively sleeved on multiple groups of third transmission shafts 27, and the multiple groups of sixth bevel gears 29 are respectively meshed and connected with multiple groups of first bevel gears 15;Insert multiple sets of limit bolts 18 into the through holes of multiple sets of guide columns 16 respectively, and make the through holes of the limit bolts 18 on the right side lower than the through holes of other limit bolts 18, turn on the two sets of second motors 12, and the two sets of gears 11 are respectively meshed with the two sets of racks 9 for transmission, so that the multiple sets of second slide blocks 10 slide downward on the two sets of guide frames 2 respectively, and the multiple sets of grabbing rods 17 extend into the pickling tank, and the bottom ends of the multiple sets of grabbing rods 17 are supported on the bottom of the pickling tank, and then the multiple sets of second slide blocks 10 continue to move downward. The plurality of guide columns 16 slide in the plurality of support tubes 14 respectively, and then the tops of the plurality of grabbing rods 17 contact the bottoms of the plurality of support tubes 14, and the third motor 21 and the second motor 12 are provided with electric energy through the second reducer 20, and the third motor 21 is operated, and the second reducer 20 is driven to drive the first transmission shaft 22 to rotate the second bevel gear 23, and the second bevel gear 23 is meshed with the two fourth bevel gears 26 to drive the two second transmission shafts 24 to rotate, and then the two third bevel gears 26 are meshed to drive the two fourth bevel gears 26. 5 are respectively meshed with the two groups of fifth bevel gears 28 for transmission, so that the two groups of third transmission shafts 27 rotate in opposite directions, and then through the multiple groups of sixth bevel gears 29 respectively meshed with the multiple groups of first bevel gears 15 for transmission, so that the multiple groups of grabbing rods 17 on the rear side rotate forward 90°, and the multiple groups of grabbing rods 17 on the front side rotate reversely 90°, so that the bottoms of the multiple groups of grabbing rods 17 are all moved to the bottom of the steel pipe, and then the multiple groups of second slide blocks 10 slide upward, so that the multiple groups of grabbing rods 17 pick up the steel pipe in the pickling tank, and due to the limit bolt 1 on the right side The perforation at 8 is higher than the other limit bolts 18, so that the steel pipe tilts to the left, which facilitates the acid in the steel pipe to flow out. The first motor 8 is turned on, and the first reducer 7 is driven to rotate the two sets of lead screws 6, driving the two sets of first sliders 5 to slide on the two sets of guide rails 4 respectively, and the multiple sets of track wheels 3 roll on the two sets of slide rails 1 respectively, adjusting the positions of the multiple sets of grabbing rods 17, and then the third motor 21 runs in the reverse direction to reset the multiple sets of grabbing rods 17 and put the steel pipe in the specified position, thereby improving the practicality of the equipment. ; Embodiment 2

[0019] like Figures 1 to 11 As shown, the pickling steel pipe automatic pickling line lifting rack, based on the first embodiment, also includes: The cleaning mechanism includes a guide plate 30, a water spray pipe 31, a three-way pipe 32, an electric control valve 33, a compression mechanism and a clearing mechanism. The guide plate 30 is installed on the left guide frame 2, the water spray pipe 31 is installed on the right guide frame 2, and the water spray pipe 31 is provided with a plurality of groups of high-pressure nozzles. The electric control valve 33 is installed on the water spray pipe 31 through the three-way pipe 32, the clearing mechanism is installed on the three-way pipe 32, and the compression mechanism is installed on the electric control valve 33; The clearing mechanism includes a pressure regulating cylinder 34, a piston 35 and a telescopic motor 36. The pressure regulating cylinder 34 is mounted on the three-way pipe 32. The piston 35 is slidably mounted in the pressure regulating cylinder 34. The telescopic motor 36 is mounted on the top of the pressure regulating cylinder 34, and the bottom end of the telescopic motor 36 is connected to the top end of the piston 35. The compression mechanism includes a neutralization box 37, a one-way valve 38, an air pipe 39, a circulation pump 40, a circulation pipe 41, multiple groups of atomizing nozzles 42, multiple groups of baffles 43, an air compressor 44 and a connecting hose 45. The one-way valve 38 is installed on the neutralization box 37, the air pipe 39 is installed on the one-way valve 38, and the air pipe 39 is located inside the neutralization box 37. The air pipe 39 is provided with multiple groups of jet holes. The circulation pump 40 is installed on the side end of the neutralization box 37, and the water suction port of the circulation pump 40 is communicated with the inside of the neutralization box 37. One end of the annular pipe 41 is connected to the drain port of the circulation pump 40, and the other end of the circulation pipe 41 extends to the inside of the neutralization box 37. Multiple groups of atomizing nozzles 42 are installed on the circulation pipe 41, and multiple groups of baffles 43 are installed inside the neutralization box 37, and the multiple groups of baffles 43 are located above the multiple groups of atomizing nozzles 42. An air compressor 44 is installed on the top of the neutralization box 37, and the air intake of the air compressor 44 is connected to the inside of the neutralization box 37, and the exhaust port of the air compressor 44 is connected to the electric control valve 33 through a connecting hose 45; The surfaces of the plurality of groups of grabbing rods 17 are all covered with EPDM rubber sleeves; The frame 13 is supported by welding of hollow square tubes; Insert multiple sets of limit bolts 18 into the through holes of multiple sets of guide columns 16 respectively, and make the through holes of the limit bolts 18 on the right side lower than the through holes of other limit bolts 18, turn on the two sets of second motors 12, and the two sets of gears 11 are respectively meshed with the two sets of racks 9 for transmission, so that the multiple sets of second sliders 10 slide downward on the two sets of guide frames 2, and the multiple sets of grabbing rods 17 extend into the pickling tank, and the bottom ends of the multiple sets of grabbing rods 17 are supported on the bottom of the pickling tank, and then the multiple sets of second sliders 10 continue to slide downward, so that the multiple sets of guide columns 16 slide in the multiple sets of support tubes 14 respectively, and then the tops of the multiple sets of grabbing rods 17 contact the bottom ends of the multiple sets of support tubes 14, and the third motor 21 and the second motor 12 are provided with electric energy through the second reducer 20, The third motor 21 is operated and transmitted through the second reducer 20, so that the first transmission shaft 22 drives the second bevel gear 23 to rotate, and the second bevel gear 23 is meshed with the two sets of fourth bevel gears 26 to transmit the two sets of second transmission shafts 24 to rotate, and then the two sets of third bevel gears 25 are respectively meshed with the two sets of fifth bevel gears 28 to transmit the two sets of third transmission shafts 27 to rotate in opposite directions, and then the multiple sets of sixth bevel gears 29 are respectively meshed with the multiple sets of first bevel gears 15 to transmit the multiple sets of grabbing rods 17 on the rear side to rotate forward by 90°, and the multiple sets of grabbing rods 17 on the front side to rotate reversely by 90°, and the bottoms of the multiple sets of grabbing rods 17 are all moved to the bottom of the steel pipe, and then the multiple sets of second sliders 10 slide upward, so that the multiple sets of grabbing rods 17 can fish out the steel pipe in the pickling tank, and because of the right The through hole of the limit bolt 18 on the side is higher than that of the other limit bolts 18, so that the steel pipe is tilted to the left, which is convenient for the acid liquid in the steel pipe to flow out. At the same time, the air compressor 44 is turned on to suck out the air in the neutralization box 37 and compress it to form a negative pressure environment inside the neutralization box 37. Then the one-way valve 38 is opened to discharge the air into the air supply pipe 39, and the air is discharged into the neutralizing liquid through the multiple groups of jet holes on the air supply pipe 39 to neutralize the acidic substances in the air. At the same time, the circulating pump 40 is operated to discharge the neutralizing liquid into the circulating pipe 41, and the neutralizing liquid is atomized and sprayed out through the multiple groups of atomizing nozzles 42 to neutralize the rising air for the second time. Then the air flows through the multiple groups of baffles 43 to reduce the humidity of the air. At the same time, the air compressor 44 passes the compressed air through the connecting The hose 45 is connected to the three-way pipe 32, so that the multiple groups of high-pressure nozzles on the water spray pipe 31 spray air into the steel pipe, so that the pickling liquid in the steel pipe is quickly discharged, and the discharged pickling liquid is blocked by the guide plate 30, so that the pickling liquid flows back into the pickling tank, and when the multiple groups of high-pressure nozzles on the water spray pipe 31 are blocked, the electric control valve 33 is closed, and the telescopic motor 36 is quickly extended downward to make the piston 35 slide downward quickly, and the air in the pressure regulating cylinder 34 is pressurized, so that the high-pressure air enters the three-way pipe 32, impacts the multiple groups of high-pressure nozzles on the water spray pipe 31, and dredges the high-pressure nozzles on the multiple groups of water spray pipes 31, or the telescopic motor 36 is quickly contracted to quickly suck the air in the three-way pipe 32 and the water spray pipe 31 into the pressure regulating cylinder 34,The high-pressure nozzles on the multiple groups of water spray pipes 31 are unblocked, the first motor 8 is turned on, and the two groups of lead screws 6 are rotated through the first reducer 7, driving the two groups of first slide blocks 5 to slide on the two groups of guide rails 4 respectively, and the multiple groups of track wheels 3 roll on the two groups of slide rails 1 respectively, and the positions of the multiple groups of grabbing rods 17 are adjusted, and then the third motor 21 is reversed to reset the multiple groups of grabbing rods 17 and put the steel pipes at the designated position, thereby improving the practicality of the equipment.

[0020] The main functions achieved by the present invention are: improving pickling effect, improving cleaning convenience, and increasing the service life of the equipment; 1. Improve the pickling effect: The steel pipes scattered in the pickling tank can be easily fished out through the lifting mechanism. There is no need to bundle the steel pipes together and put them into the pickling tank. The pickling effect of scattered steel pipes is better, which improves the convenience and pickling effect of steel pipe pickling; 2. Improve the convenience of cleaning: through the lifting mechanism and the cleaning structure, it is convenient to clean the pickling liquid in the steel pipe during the lifting process; 3. Improve the service life of equipment: By neutralizing the air that needs to be compressed, the corrosion of acidic gas on the equipment can be reduced, thereby improving the service life of the equipment.

[0021] The installation method, connection method or setting method of the lifting rack of the automatic pickling line for pickled steel pipes of the present invention are all common mechanical methods, and can be implemented as long as they can achieve their beneficial effects; the middle part of the support tube 14 is provided with a polygonal structure, and the surface structure of the guide column 16 is in contact with the polygonal structure in the support tube 14; the surface of the lifting rack of the automatic pickling line for pickled steel pipes is treated with anti-corrosion; the first reducer 7, the first motor 8, the second motor 12, the electric control box 19, the second reducer 20, the third motor 21, the electric control valve 33, the telescopic motor 36, the circulating pump 40 and the air compressor 44 of the lifting rack of the automatic pickling line for pickled steel pipes of the present invention are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for creative labor by technicians in this field.

[0022] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. The automatic pickling line for pickling steel pipes includes a lifting rack, including a moving mechanism; characterized in that: It also includes a lifting mechanism and a cleaning mechanism, both of which are installed on the moving mechanism; The moving mechanism adjusts the positions of the lifting mechanism and the cleaning mechanism, the lifting mechanism performs a lifting operation, and the cleaning mechanism cleans the pickling liquid in the steel pipe; The moving mechanism comprises two sets of slide rails (1), two sets of guide frames (2), a plurality of sets of track wheels (3), two sets of guide rails (4), two sets of first sliders (5), two sets of lead screws (6), a first reducer (7), a first motor (8) and a lifting mechanism, wherein the two sets of first sliders (5) are respectively slidably mounted on the two sets of guide rails (4), one end of the two sets of lead screws (6) are respectively rotatably mounted on one end of the two sets of guide rails (4), the other ends of the two sets of lead screws (6) respectively pass through the two sets of first sliders (5), and the other ends of the two sets of lead screws (6) are respectively rotatably connected to the other ends of the two sets of guide rails (4), and the surfaces of the two sets of lead screws (6) are respectively connected to the two sets of first sliders ( 5), the two groups of guide frames (2) are respectively mounted on the two groups of first sliders (5), the multiple groups of track wheels (3) are respectively mounted on the bottoms of the two groups of guide frames (2), and the multiple groups of track wheels (3) roll on the two groups of slide rails (1), the first reducer (7) is mounted on the other ends of the two groups of guide rails (4), and the output ends of the two groups of first reducers (7) are respectively connected to the other ends of the two groups of lead screws (6), the first motor (8) is mounted on the first reducer (7), and the output shaft of the first motor (8) is connected to the input end of the first reducer (7), and the lifting mechanism is mounted on the two groups of guide frames (2) and the lifting mechanism; The lifting mechanism comprises two groups of racks (9), multiple groups of second sliders (10), two groups of gears (11) and two groups of second motors (12); the two groups of racks (9) are respectively mounted on the two groups of guide frames (2); the multiple groups of second sliders (10) are all mounted on the lifting mechanism, and the multiple groups of second sliders (10) are respectively slidably connected to the two groups of guide frames (2); the two groups of gears (11) are rotatably mounted on the lifting mechanism; the two groups of second motors (12) are fixedly mounted on the lifting mechanism; the output shafts of the two groups of second motors (12) are respectively connected to the front ends of the two groups of gears (11); and the side ends of the two groups of gears (11) are respectively meshed and connected to the two groups of racks (9); The lifting mechanism comprises a driving mechanism, a frame (13), a plurality of support tubes (14), a plurality of first bevel gears (15), a plurality of guide columns (16), a plurality of grabbing rods (17) and a plurality of limiting bolts (18); the frame (13) is mounted on a plurality of second sliders (10); the driving mechanism is mounted on the frame (13); a plurality of support tubes (14) are mounted on the frame (13); a plurality of first bevel gears (15) are mounted on the top of the plurality of support tubes (14); a plurality of guide columns (16) are slidably mounted in the plurality of support tubes (14); a plurality of through holes are provided on the plurality of guide columns (16); a plurality of limiting bolts (18) are inserted into the through holes of the plurality of guide columns (16); and a plurality of grabbing rods (17) are mounted on the bottom of the plurality of guide columns (16).

2. The automatic pickling line lifting rack for pickled steel pipes according to claim 1 is characterized in that: The driving mechanism comprises an electric control box (19), a second reducer (20), a third motor (21), a first transmission shaft (22), a second bevel gear (23), two sets of second transmission shafts (24), two sets of third bevel gears (25), two sets of fourth bevel gears (26), two sets of third transmission shafts (27), two sets of fifth bevel gears (28) and a plurality of sets of sixth bevel gears (29). The electric control box (19) and the second reducer (20) are both mounted on the frame (13). The third motor (21) is mounted on the second reducer (20), and an output shaft of the third motor (21) is connected to an input end of the second reducer (20). The second bevel gear (23) is mounted on the output end of the second reducer (20) via the first transmission shaft (22). The transmission shaft (24) and the two sets of third transmission shafts (27) are both rotatably mounted on the frame (13); the two sets of third bevel gears (25) are respectively mounted on one end of the two sets of second transmission shafts (24); the two sets of fourth bevel gears (26) are respectively mounted on the other end of the two sets of second transmission shafts (24); and the two sets of fourth bevel gears (26) are both meshedly connected with the second bevel gears (23); the two sets of fifth bevel gears (28) are respectively mounted on one end of the two sets of third transmission shafts (27); and the two sets of fifth bevel gears (28) are respectively meshedly connected with the two sets of third bevel gears (25); and the plurality of sets of sixth bevel gears (29) are respectively mounted on the plurality of sets of third transmission shafts (27); and the plurality of sets of sixth bevel gears (29) are respectively meshedly connected with the plurality of sets of first bevel gears (15).

3. The automatic pickling line lifting rack for pickled steel pipes according to claim 1 is characterized in that: The cleaning mechanism comprises a guide plate (30), a water spray pipe (31), a three-way pipe (32), an electric control valve (33), a compression mechanism and a blockage clearing mechanism, wherein the guide plate (30) is mounted on the left guide frame (2), the water spray pipe (31) is mounted on the right guide frame (2), and a plurality of groups of high-pressure nozzles are arranged on the water spray pipe (31), the electric control valve (33) is mounted on the water spray pipe (31) via the three-way pipe (32), the blockage clearing mechanism is mounted on the three-way pipe (32), and the compression mechanism is mounted on the electric control valve (33).

4. The lifting rack of the automatic pickling line for pickled steel pipes according to claim 3 is characterized in that: The blockage clearing mechanism comprises a pressure regulating cylinder (34), a piston (35) and a telescopic motor (36); the pressure regulating cylinder (34) is mounted on the three-way pipe (32); the piston (35) is slidably mounted in the pressure regulating cylinder (34); the telescopic motor (36) is mounted on the top of the pressure regulating cylinder (34); and the bottom end of the telescopic motor (36) is connected to the top end of the piston (35).

5. The lifting rack of the automatic pickling line for pickled steel pipes according to claim 3 is characterized in that: The compression mechanism comprises a neutralization box (37), a one-way valve (38), an air delivery pipe (39), a circulation pump (40), a circulation pipe (41), a plurality of groups of atomizing nozzles (42), a plurality of groups of baffles (43), an air compressor (44) and a connecting hose (45); the one-way valve (38) is mounted on the neutralization box (37); the air delivery pipe (39) is mounted on the one-way valve (38), and the air delivery pipe (39) is located inside the neutralization box (37); a plurality of groups of jet holes are provided on the air delivery pipe (39); the circulation pump (40) is mounted on a side end of the neutralization box (37), and a water suction port of the circulation pump (40) is connected to the inside of the neutralization box (37). One end of the circulation pipe (41) is connected to the drain port of the circulation pump (40), and the other end of the circulation pipe (41) extends to the interior of the neutralization box (37). Multiple groups of atomizing nozzles (42) are installed on the circulation pipe (41), and multiple groups of baffles (43) are installed inside the neutralization box (37), and the multiple groups of baffles (43) are located above the multiple groups of atomizing nozzles (42). An air compressor (44) is installed on the top of the neutralization box (37), and the air intake port of the air compressor (44) is connected to the interior of the neutralization box (37), and the air exhaust port of the air compressor (44) is connected to the electric control valve (33) through a connecting hose (45).

6. The automatic pickling line lifting rack for pickled steel pipes according to claim 1 is characterized in that: The surfaces of the multiple groups of grabbing rods (17) are all covered with EPDM rubber sleeves.

7. The automatic pickling line lifting rack for pickled steel pipes according to claim 1 is characterized in that: The frame (13) is supported by welding of hollow square tubes.

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