CN115505933A

CN115505933A - Stainless steel pipe acid pickling method

Info

Publication number: CN115505933A
Application number: CN202211149526.7A
Authority: CN
Inventors: 李秀娣; 司茹茹
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2022-12-23

Abstract

The invention discloses a pickling method for a stainless steel pipe, and relates to the technical field of pickling of stainless steel pipes. According to the invention, through the matching between the water injection pipe and the water pump, the pickling solution in the pickling water tank is injected into the first water pipe, and the pickling solution is sprayed on the surface of the stainless steel pipe through the first water pipe and the spray head, and in the spraying process, the driving motor is started to drive the main gear to rotate, the auxiliary gear is driven to rotate through transmission, and the auxiliary gear drives the gear bar to drive the first water pipe to reciprocate in the pickling tank body, so that the effect of more uniform spraying on the surface of the stainless steel pipe is realized, and the use efficiency of the device is improved.

Description

Stainless steel pipe acid pickling method

Technical Field

The invention relates to the technical field of stainless steel pipe acid pickling, in particular to a stainless steel pipe acid pickling method.

Background

The stainless steel pipe is a hollow long-strip round steel material, and is mainly widely used for industrial conveying pipelines, mechanical structural parts and the like of petroleum, chemical industry, medical treatment, food, light industry, mechanical instruments and the like. In addition, since the steel sheet is light in weight when it is bent and has the same torsional strength, it is widely used for manufacturing machine parts and engineering structures. Also commonly used as household utensils and appliances, such as stainless steel pipes, etc., after being annealed and formed, the surface of the workpiece is oxidized into black, and the surface of the workpiece needs to be pickled to remove the oxide layer and oil stains on the surface, so that a pickling device is needed to clean the workpiece.

If the Chinese invention discloses the number: CN 113403625A's stainless steel pipe acid dip pickle of high-efficient pickling includes: the casing, the cap, a plurality of fixer, a plurality of jet-flow pipeline, a plurality of guide vane, circulator and agitator, the casing constitutes the pickling chamber, the cap sets up in the casing upper end, jet-flow pipeline sets up in the casing side, jet-flow pipeline equidistant setting, jet-flow pipeline layer distribution, the jet-flow pipeline position relative position of each layer is unanimous, the medial surface of casing and the bottom surface of casing are connected to the guide vane, the circulator sets up in the casing bottom surface, the circulator is discoid, the fixer sets up in the circulator surface, the fixer sets up around the center pin of circulator, the agitator sets up in the center of circulator, the guide vane is the arc, interval between the guide vane is fixed, the tail end of guide vane is fixed in the casing inside surface, the head end of guide vane sets up to the point form, under overlooking the visual angle, the guide vane is crooked to same direction, the region in guide vane has the interval with the vertical space at circulator place, the guide vane is equal height with the lateral wall of cap.

The following problems exist in the prior art:

1. in the actual use process of the existing stainless steel pipe pickling device, the spraying range of the spraying pickling device on the plate is not comprehensive enough, and some missing places are often not sprayed, so that the subsequent product quality is influenced, defective products are increased, and the utilization efficiency of the device is reduced;

2. in the actual use process of the existing stainless steel pipe pickling device, more dirt exists at the bottom of an inner cavity of a pickling tank, and if the dirt is not cleaned in time, the next pickling effect is weakened, so that the pickling treatment is unqualified, and great economic loss is caused, thereby reducing the use efficiency of the device.

Disclosure of Invention

The invention provides a stainless steel pipe acid washing method, which aims to solve the problems in the background technology.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

in a first aspect, a method for pickling a stainless steel pipe comprises the following steps:

firstly, cleaning oil stains and sundries on the inner wall and the outer wall of a stainless steel pipe by using degreasing fluid, polishing the inner wall and the outer wall of the stainless steel pipe, and polishing oxide films on the inner wall and the outer wall of the stainless steel pipe;

step two, cleaning the polished stainless steel pipe by using clear water, mainly cleaning powder on the inner wall and the outer wall of the stainless steel pipe, and drying water on the inner surface and the outer surface of the stainless steel pipe;

step three, placing the stainless steel pipe into a pickling device for pickling treatment, and then passivating the stainless steel pipe after pickling;

and step four, washing the stainless steel pipe after the passivation is finished by using clear water, and finishing the subsequent process.

The second aspect is a stainless steel pipe pickling device, which comprises a pickling tank main body, wherein two sides of the pickling tank main body are fixedly connected with drain pipes, two end surfaces of the pickling tank main body are provided with a through groove and a sliding groove, a connecting block is fixedly arranged on the sliding groove, two ends of the pickling tank main body are fixedly provided with limiting plates in the front, a fixed base is fixedly arranged at the bottom of the pickling tank main body, a spray washing mechanism is arranged inside the pickling tank main body, one end of the pickling tank main body is provided with a grabbing device, a cleaning device is fixedly arranged on the upper surface of the pickling tank main body, a water conveying pipe I is arranged above the inside of the pickling tank main body, the cleaning device comprises an electric sliding seat, a sliding block I and a cleaning mop, and the cleaning mop is arranged inside the pickling tank main body,

the technical scheme of the invention is further improved as follows: the utility model discloses a pickling water tank, including fixing base, raceway one, one end fixedly connected with water injection pipe and water injection pipe, the fixed surface of water injection pipe installs the water pump, the bottom fixed surface of raceway one installs the spray rinsing head, and through setting up the cooperation between water injection pipe and the water pump, pours into the inside of raceway one with the inside pickle in pickling water tank to by a raceway one injection rinsing head sprays the pickle on the surface of nonrust steel pipe.

The technical scheme of the invention is further improved as follows: one side slidable mounting of connecting block has the rack, the surface engagement of rack is connected with the auxiliary gear, the surface engagement of auxiliary gear is connected with the master gear, the inner wall of master gear rotates and is connected with the pivot, the one end fixed mounting of pivot has driving motor one, and at the in-process of spraying, drives the master gear through starting driving motor one and rotates to through the transmission, drive the auxiliary gear and rotate, drive the raceway by the auxiliary gear and carry out reciprocating motion in the inside of descaling bath main part, realized spraying more even effect to nonrust steel pipe surface.

The technical scheme of the invention is further improved as follows: grabbing device is including the device pedestal, the fixed slot has been seted up on the surface of device pedestal, the inner wall fixedly connected with threaded rod of fixed slot drives the inside threaded rod of fixed slot through start-up driving motor two and rotates, and then makes the sliding component go up and down on its surface.

The technical scheme of the invention is further improved as follows: the top fixed mounting of device pedestal has driving motor two, the output of driving motor two and the one end fixed connection of threaded rod, the movable mounting in surface of threaded rod has the slip subassembly, the bottom fixed mounting of slip subassembly has mechanical tongs main part, treats that the slip subassembly descends to the inside of descaling bath main part, carries out the centre gripping with nonrust steel pipe through setting up mechanical tongs main part to and utilize the frictional force of wearing pad reinforcing between the two, make more firm of its centre gripping, so that the staff air-dries the processing to its surface.

The technical scheme of the invention is further improved as follows: the mechanical gripper comprises a mechanical gripper body and is characterized in that a fixed disc is fixedly mounted at the top of the mechanical gripper body, a movable assembly is movably connected to the bottom of the fixed disc, a movable shaft is movably connected to the inner side of the movable assembly, grippers are movably connected to the two sides of the mechanical gripper body, movable rods are movably connected to the inner portions of the grippers, and wear-resistant pads are fixedly mounted on the inner surfaces of the grippers.

The technical scheme of the invention is further improved as follows: the cleaning device comprises an electric sliding seat, the surface sliding device of the electric sliding seat is provided with a first sliding block, one end fixedly connected with sliding rails of the first sliding block, the surface sliding device of the sliding rails is provided with a second sliding block, the bottom of the second sliding block is fixedly provided with a third driving motor, one end of the cleaning mop is fixedly connected with the output end of the third driving motor, the first sliding block slides on the surface of the first sliding block by arranging the electric sliding seat, the second sliding block is enabled to horizontally move, the second sliding block is enabled to move left and right by arranging the sliding rails, the third driving motor drives the cleaning mop to rotate, so that dirt in a main body of the pickling tank is cleaned, the problem that the stainless steel pipe pickling device is in the actual use process is solved, and more dirt exists at the bottom of the inner cavity of the pickling tank.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:

1. the invention provides a stainless steel pipe pickling method, which solves the problems that in the actual use process of a stainless steel pipe pickling device, a spraying range of a spraying pickling device on a plate is not comprehensive enough, some omitted places are not sprayed frequently, and further the subsequent product quality is influenced, and the defective products are increased, and further improves the use efficiency of the device through the common matching of a pickling pool, a water injection pipe, a water pump, a water delivery pipe I, a spraying head, a gear rack, an auxiliary gear, a main gear and a driving motor I.

2. The invention provides a stainless steel pipe pickling method, which is characterized in that a water injection pipe and a water pump are matched, so that pickling liquid in a pickling water tank is injected into a first water pipe, the pickling liquid is sprayed on the surface of a stainless steel pipe by a first water pipe and a spray head, in the spraying process, a driving motor is started to drive a main gear to rotate and drive an auxiliary gear to rotate through transmission, and a gear bar is driven by the auxiliary gear to drive a first water pipe to reciprocate in the pickling tank main body, so that the effect of more uniformly spraying the surface of the stainless steel pipe is realized, the problem that the spraying range of a plate is not comprehensive in the actual use process of a stainless steel pipe pickling device, some omitted places are not sprayed frequently, the subsequent product quality is influenced, and the defective products are increased is solved, and the use efficiency of the device is improved.

3. The invention provides a stainless steel pipe pickling method, which is characterized in that a driving motor II is started to drive a threaded rod in a fixed groove to rotate, so that a sliding assembly is lifted on the surface of the sliding assembly, the sliding assembly is lowered into a pickling tank main body, a mechanical gripper main body is arranged to clamp a stainless steel pipe, and a wear-resistant pad is used for enhancing the friction force between the stainless steel pipe and the stainless steel pipe, so that the stainless steel pipe is clamped more firmly, a worker can conveniently air-dry the surface of the stainless steel pipe, and the working efficiency of the device is improved.

4. The invention provides a stainless steel pipe pickling method, which is characterized in that an electric sliding seat is arranged to enable a first sliding block to slide on the surface of the first sliding block, so that a second sliding block horizontally moves, a sliding rail is arranged to enable the second sliding block to move left and right, and then a driving motor is started to drive a cleaning mop to rotate so as to clean dirt in a pickling tank main body.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic perspective view of a structural pickling tank of the present invention;

FIG. 3 is a perspective view of the structural spray mechanism of the present invention;

FIG. 4 is a perspective view of the structure grasping apparatus of the present invention;

FIG. 5 is a perspective view of a structural mechanical gripper body of the present invention

Fig. 6 is a perspective view of the structural cleaning device of the present invention.

In the figure: 1. a pickling tank main body; 11. a sewage discharge pipe; 12. a through groove; 13. a chute; 14. a limiting plate; 15. connecting blocks; 2. a fixed base;

3. a spray rinsing mechanism; 31. pickling a water pool; 32. a water injection pipe; 33. a water pump; 34. a water delivery pipe I; 35. spraying and washing the head; 36. a gear rack; 37. an auxiliary gear; 38. a main gear; 39. a first driving motor;

4. a gripping device; 41. a device pedestal; 42. fixing grooves; 43. a second driving motor; 44. a threaded rod; 45. a sliding assembly; 46. a mechanical gripper body; 461. a movable component; 462. a movable shaft; 463. a gripper; 464. a movable rod; 465. a wear pad;

5. a cleaning device; 51. an electric slide seat; 52. a first sliding block; 53. a slide rail; 54. a second sliding block; 55. driving a motor III; 56. the mop is cleaned.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

example 1

As shown in FIGS. 1 to 6, the present invention provides a stainless steel pipe pickling method, comprising the steps of:

step three, putting the stainless steel pipe into a pickling device for pickling treatment, and then passivating the stainless steel pipe after pickling;

and step four, washing the stainless steel pipe after the passivation is finished by using clean water, and finishing the subsequent process.

Example 2

As shown in fig. 1 to 6, on the basis of embodiment 1, the present invention further provides a stainless steel pipe pickling apparatus, which includes a pickling tank main body 1, wherein two sides of the pickling tank main body 1 are fixedly connected with drain pipes 11, two end surfaces of the pickling tank main body 1 are provided with through grooves 12 and sliding grooves 13, the sliding grooves 13 are fixedly mounted with connecting blocks 15, two ends of the pickling tank main body 1 are positively and fixedly mounted with limiting plates 14, and the bottom of the pickling tank main body 1 is fixedly mounted with a fixing base 2, and is characterized in that: the inside of the pickling tank main body 1 is provided with a spray washing mechanism 3, one end of the pickling tank main body 1 is provided with a grabbing device 4, the upper surface of the pickling tank main body 1 is fixedly provided with a cleaning device 5, a water conveying pipe 34 is arranged above the inside of the pickling tank main body 1, the cleaning device 5 comprises an electric sliding seat 51, a sliding block 52 and a cleaning mop 56, the cleaning mop 56 is arranged inside the pickling tank main body 1, the surface of the fixed base 2 is fixedly provided with a pickling water tank 31, one end of the water conveying pipe 34 is fixedly connected with a water injection pipe 32, one end of the water injection pipe 32 extends into the pickling water tank 31, the surface of the water injection pipe 32 is fixedly provided with a water pump 33, the bottom surface of the water conveying pipe 34 is fixedly provided with a spray washing head 35, one side of the connecting block 15 is slidably provided with a gear wheel strip 36, the surface engagement of gear rack 36 is connected with auxiliary gear 37, the surface engagement of auxiliary gear 37 is connected with main gear 38, the inner wall rotation of main gear 38 is connected with the pivot, the one end fixed mounting of pivot has driving motor 39, cooperation through setting up between water injection pipe 32 and the water pump 33, pour into the inside of raceway 34 with the inside pickle of pickling pond 31 into, and spray the pickle on the surface of stainless steel pipe by raceway 34 configuration spray head 35, and at the in-process of spraying, drive main gear 38 and rotate through starting driving motor 39, and through the transmission, drive auxiliary gear 37 and rotate, drive gear rack 36 by auxiliary gear 37 and drive raceway 34 and carry out reciprocating motion in the inside of pickling tank main part 1, realized spraying more even effect to the stainless steel pipe surface.

Example 3

As shown in fig. 1-6, on the basis of the embodiment 1-2, the present invention provides a technical solution: preferably, the gripping device 4 includes a device base 41, a fixing groove 42 is formed in the surface of the device base 41, a threaded rod 44 is fixedly connected to the inner wall of the fixing groove 42, a second driving motor 43 is fixedly installed at the top of the device base 41, the output end of the second driving motor 43 is fixedly connected to one end of the threaded rod 44, a sliding assembly 45 is movably installed on the surface of the threaded rod 44, a mechanical gripper main body 46 is fixedly installed at the bottom of the sliding assembly 45, a fixed disc is fixedly installed at the top of the mechanical gripper main body 46, a movable assembly 461 is movably connected to the bottom of the fixed disc, a movable shaft 462 is movably connected to the inner side of the movable assembly 461, a gripper 463 is movably connected to both sides of the mechanical gripper main body 46, a movable rod 464 is movably connected to the inner side of the gripper 463, a wear-resistant pad 465 is fixedly installed on the inner surface of the gripper 463, the driving the threaded rod 44 in the fixing groove 42 to rotate by starting the second driving motor 43, the sliding assembly 45 is further lifted and lowered to the pickling bath main body 1, the stainless steel tube is clamped by arranging the mechanical gripper main body 46, and the wear-resistant pad 465 is enhanced by friction force, so that the worker can air-dry the surface of the gripper.

Example 4

As shown in fig. 1 to 6, on the basis of the embodiments 1 to 3, the present invention provides a technical solution: preferably, the cleaning device 5 comprises an electric sliding seat 51, a first sliding block 52 is slidably mounted on the surface of the electric sliding seat 51, a sliding rail 53 is fixedly connected to one end of the first sliding block 52, a second sliding block 54 is slidably mounted on the surface of the sliding rail 53, a third driving motor 55 is fixedly mounted at the bottom of the second sliding block 54, one end of the cleaning mop 56 is fixedly connected to the output end of the third driving motor 55, the first sliding block 52 slides on the surface by arranging the electric sliding seat 51, the second sliding block 54 horizontally moves, the second sliding block 53 moves left and right by arranging the sliding rail 53, and then the third driving motor 55 is started to drive the cleaning mop 56 to rotate so as to clean dirt in the pickling tank main body 1.

The working principle of the stainless steel pipe pickling method will be described in detail below.

As shown in fig. 1-6, firstly, through the cooperation between the water injection pipe 32 and the water pump 33, the pickling solution inside the pickling tank 31 is injected into the water pipe 34, and the pickling solution is sprayed on the surface of the stainless steel pipe by the water pipe 34 and the spray head 35, and in the spraying process, the main gear 38 is driven to rotate by starting the driving motor 39, the auxiliary gear 37 is driven to rotate by transmission, the gear bar 36 is driven by the auxiliary gear 37 to drive the water pipe 34 to reciprocate inside the pickling tank main body 1, so that the effect of spraying more uniformly on the surface of the stainless steel pipe is achieved, then the pickling is finished, the first sliding block 52 slides on the surface of the first sliding block 52 by arranging the electric sliding seat 51, so that the second sliding block 54 horizontally moves, and moves left and right by arranging the sliding rail 53, and then the cleaning mop 56 is driven to rotate by starting the driving motor 55, so as to clean the dirt inside the pickling tank main body 1.

The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.

Claims

1. A stainless steel pipe acid pickling method is characterized in that: the stainless steel pipe acid washing method comprises the following steps:

2. The pickling method of stainless steel pipes as claimed in claim 1, which provides a pickling device for stainless steel pipes, comprising a pickling tank body (1), wherein blow-off pipes (11) are fixedly connected to two sides of the pickling tank body (1), through grooves (12) and sliding grooves (13) are formed in the surfaces of two ends of the pickling tank body (1), connecting blocks (15) are fixedly mounted on the sliding grooves (13), limiting plates (14) are fixedly mounted on the front surfaces of the two ends of the pickling tank body (1), and a fixing base (2) is fixedly mounted on the bottom of the pickling tank body (1), and is characterized in that: the inside of descaling bath main part (1) is provided with spray rinsing mechanism (3), the one end of descaling bath main part (1) is provided with grabbing device (4), the last fixed surface of descaling bath main part (1) installs belt cleaning device (5), the inside top of descaling bath main part (1) is provided with raceway (34), belt cleaning device (5) are including electronic slide (51), slider (52) and clean mop (56), clean mop (56) set up the inside in descaling bath main part (1).

3. The pickling device for stainless steel pipes as claimed in claim 2, wherein: the fixed surface of unable adjustment base (2) installs pickling pond (31), the one end fixedly connected with water injection pipe (32) of raceway (34) and the one end of water injection pipe (32) extend to the inside in pickling pond (31), the fixed surface of water injection pipe (32) installs water pump (33), the bottom fixed surface of raceway (34) installs and spouts washing head (35).

4. The pickling device for stainless steel pipes as claimed in claim 2, wherein: one side slidable mounting of connecting block (15) has gear strip (36), the surface engagement of gear strip (36) is connected with auxiliary gear (37), the surface engagement of auxiliary gear (37) is connected with master gear (38), the inner wall rotation of master gear (38) is connected with the pivot, the one end fixed mounting of pivot has driving motor one (39).

5. The pickling device for stainless steel pipes as claimed in claim 2, wherein: grabbing device (4) including device pedestal (41), fixed slot (42) have been seted up on the surface of device pedestal (41), the inner wall fixedly connected with threaded rod (44) of fixed slot (42).

6. The stainless steel pipe pickling device according to claim 5, wherein: the device comprises a device pedestal (41) and is characterized in that a second driving motor (43) is fixedly mounted at the top of the device pedestal (41), the output end of the second driving motor (43) is fixedly connected with one end of a threaded rod (44), a sliding assembly (45) is movably mounted on the surface of the threaded rod (44), and a mechanical gripper main body (46) is fixedly mounted at the bottom of the sliding assembly (45).

7. The stainless steel pipe pickling device according to claim 6, wherein: the top fixed mounting of machinery tongs main part (46) has the fixed disk, the bottom swing joint of fixed disk has movable assembly (461), the inboard swing joint of movable assembly (461) has loose axle (462), the both sides swing joint of machinery tongs main part (46) have tongs (463), the inside swing joint of tongs (463) has movable rod (464), the internal surface fixed mounting of tongs (463) has wear pad (465).

8. The pickling device for stainless steel pipes as claimed in claim 2, wherein: cleaning device (5) is including electronic slide (51), the surface sliding mounting of electronic slide (51) has slider one (52), the one end fixedly connected with slide rail (53) of slider one (52), the surface sliding mounting of slide rail (53) has slider two (54), the bottom fixed mounting of slider two (54) has driving motor three (55), the one end of clean mop (56) and the output fixed connection of driving motor three (55).