Preparation method of high-strength stainless steel and pickling device

Abstract

The invention relates to the technical field of stainless steel machining, and discloses a high-strength stainless steel preparation method and an acid pickling device.The acid pickling device comprises an acid pickling base, a stainless steel pipe fitting is installed in the acid pickling base, and an acid pickling assembly is arranged in the acid pickling base; and the pickling assembly comprises two fixing discs, a rotating ring, a connecting rod, a movable sleeve, a brush mechanism, an annular rack, a gear and a first motor, and the two fixing discs are arranged on the two sides of the pickling base correspondingly. According to the high-strength stainless steel preparation method and the acid pickling device, the acid pickling assembly is arranged, acid pickling paste can be smeared to the surface of a stainless steel pipe fitting, the fluidity of the acid pickling paste is low, and the probability of dripping and splashing is reduced; and the three groups of brush mechanisms can be attached to the surface of the stainless steel pipe fitting, and pickling paste is smeared to the surface of the stainless steel pipe fitting through the brush mechanisms.

Description

Technical Field

[0001] The invention relates to the technical field of stainless steel processing, in particular to a high-strength stainless steel preparation method and a pickling device. Background Art

[0002] The pickling process uses an acidic solution to remove the oxide layer and rust on the surface of steel. After pickling, the surface of the steel is passivated to improve the corrosion resistance of the steel. The existing pickling methods mainly include immersion pickling, spray pickling and acid paste rust removal. When pickling stainless steel pipe fittings, in order to prevent the acidic solution from entering the inside of the stainless steel pipe fittings, the spray pickling method is mainly used.

[0003] According to the application number 202110687958.2, a stainless steel pickling device is disclosed, including an injection cylinder, the inner walls of the left and right sides of the injection cylinder are both sleeved with side frames, the front and rear inner walls of the side frames are fixedly connected with elastic telescopic pads, the corresponding ends of the front and rear corresponding elastic telescopic pads are fixedly connected with slides, and the top surface of the injection cylinder is fixedly connected and connected with three infusion tubes, and the infusion tubes on the left and right sides correspond to the two infusion troughs respectively. Through the setting of the ring, the ring can automatically transform into two states during pickling and cleaning, and the stainless steel parts are wrapped during pickling to increase the pickling range. At the same time, the wrapping effect of the ring is used to reduce the rate at which the acid solution separates from the stainless steel parts, thereby achieving the benefit of saving resources. During cleaning, the ring is unfolded on the stainless steel parts, thereby forming a spraying effect during cleaning, and the height difference is used to increase the effect and intensity of water flow hitting the stainless steel parts, thereby increasing the cleaning effect.

[0004] The following problems still exist in actual use: In the prior art, when pickling stainless steel pipe fittings, most of them are pickled by spraying the outer ring of the pipe fittings, which effectively reduces the probability of the acid solution entering the inside of the pipe fittings. However, the sprayed acid solution collides with the pipe fittings, causing the acid solution to splash and fall onto the ground and the surface of the equipment, which can easily cause corrosion to the equipment and the ground. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a high-strength stainless steel preparation method and pickling device, which can apply pickling paste to the surface of stainless steel pipe fittings. The pickling paste has low fluidity, which reduces the probability of dripping and splashing, and is convenient for lifting stainless steel pipe fittings of different specifications, thereby solving the problems raised in the background technology.

[0006] The present invention provides the following technical solutions: a high-strength stainless steel preparation method and a pickling device, comprising a pickling seat, a stainless steel pipe fitting is installed inside the pickling seat, and a pickling assembly is arranged inside the pickling seat; The pickling assembly includes a fixed disk, a rotating ring, a connecting rod, a movable sleeve, a brush mechanism, an annular rack, a gear, and a motor. There are two fixed disks, which are respectively arranged on both sides of the pickling seat. A rotating ring is arranged inside the fixed disk, connecting rods are arranged at the outer triangular parts of the fixed disk, a movable sleeve is arranged between the connecting rods and the rotating ring, a brush mechanism is arranged between the connecting rods on the left and right sides, an annular rack is arranged on the outer surface of the rotating ring, a gear is arranged on the top of the annular rack, and a motor is arranged on one side of the gear.

[0007] Preferably, brackets are provided at the bottom of both ends of the stainless steel pipe fitting, and a lifting assembly is provided at the top of the bracket, and the lifting assembly includes a connecting block, a dual-axis motor, a lifting rod, a screw rod, a movable plate, and a connecting rod. The top of the bracket is fixedly connected to the connecting block, and a dual-axis motor is fixedly installed inside the connecting block. Both ends of the top of the connecting block are rotatably connected to the lifting rod, and the output shafts at both ends of the dual-axis motor are fixedly connected to the screw rod, and one end of the screw rod is movably connected to the inner wall of the bracket, the surface of the screw rod is threadedly connected to the movable plate, and a connecting rod is movably connected between the movable plate and the lifting rod.

[0008] Preferably, the fixed disk is fixedly connected to one side of the pickling seat, the rotating ring is rotatably connected to the inner wall of the fixed disk, one end of the connecting rod is rotatably connected to the outer side of the fixed disk, the movable sleeve is rotatably connected to the rotating ring, and the movable sleeve is sleeved on the surface of the connecting rod, the two ends of the brush mechanism are respectively fixedly connected to the end heads of the connecting rod, the annular rack is fixedly connected to the outer surface of the rotating ring, the gear is meshed with the annular rack, the motor 1 is fixedly connected to the inside of the fixed disk, and the output shaft of the motor 1 is fixedly connected to the gear.

[0009] Preferably, the brush mechanism includes a pickling cylinder, a fluff strip, and a paste inlet tube. The pickling cylinder is fixedly connected between the connecting rods on the left and right sides. The pickling cylinder is hollow inside and has through holes on the surface. The fluff strips are fixedly connected in the through holes on the surface of the pickling cylinder, and the paste inlet tube is fixedly connected to one side of the pickling cylinder.

[0010] Preferably, support seats are provided on both sides of the pickling seat, a hydraulic cylinder is fixedly installed on the inner wall of the support seat, the output shaft of the hydraulic cylinder is fixedly connected to the bottom of the bracket, and both ends of the bottom of the bracket are fixedly connected to limit rods.

[0011] Preferably, the two lifting rods are V-shaped, and a conveying assembly is arranged inside the lifting rod, and the conveying assembly includes a conveyor belt and a power unit. The conveyor belt is rotatably connected inside the lifting rod, and the power unit is fixedly installed on one side of the lifting rod, and the output shaft of the power unit is fixedly connected to the rotating shaft of the conveyor belt.

[0012] Preferably, the top of the conveyor belt fits against the surface of the stainless steel pipe.

[0013] Preferably, the bottom of the pickling seat is fixedly connected to a base, a slide groove is provided on the upper surface of the base, and the bottom of the support seat is fixedly connected to a slider, and the slider is located inside the slide groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The high-strength stainless steel preparation method and pickling device are provided with a pickling component, which can apply the pickling paste to the surface of the stainless steel pipe fittings. The pickling paste has low fluidity, which reduces the probability of dripping and splashing. By starting the motor, the gear, the annular rack, the rotating ring, and the movable sleeve, the three sets of brush mechanisms can be fitted with the surface of the stainless steel pipe fittings, and the pickling paste is applied to the surface of the stainless steel pipe fittings through the brush mechanism. At the same time, the power unit is started to drive the conveyor belt to rotate, which can drive the stainless steel pipe fittings to rotate, thereby evenly applying the pickling paste to the entire outer surface of the stainless steel pipe fittings.

[0015] 2. The high-strength stainless steel preparation method and pickling device are capable of lifting stainless steel pipe fittings of different specifications by providing a lifting assembly. By starting the dual-axis motor in conjunction with the screw, movable plate, and connecting rod, the two lifting rods are moved toward the stainless steel pipe fittings at the same time, and finally the conveyor belt is fitted with the surface of the pipe fittings to clamp and position the pipe fittings. Subsequently, the hydraulic cylinder is started to push the bracket to move up and down, and at the same time drive the pipe fittings to move up and down, so that the axis center of the pipe fittings is consistent with the axis center of the circular mouth of the pickling seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of a high-strength stainless steel preparation method and a pickling device provided by the present invention; Figure 2 A schematic diagram of the structure of a pickling component of a high-strength stainless steel preparation method and a pickling device provided by the present invention; Figure 3 A schematic diagram of the structure of a pickling component of a high-strength stainless steel preparation method and a pickling device provided by the present invention; Figure 4 A schematic diagram of the structure of a brush mechanism of a high-strength stainless steel preparation method and a pickling device provided by the present invention; Figure 5 A schematic diagram of the base structure of a high-strength stainless steel preparation method and a pickling device provided by the present invention; Figure 6 A schematic diagram of the structure of a lifting assembly of a high-strength stainless steel preparation method and a pickling device provided by the present invention; Figure 7 A high-strength stainless steel preparation method and pickling device provided by the present invention Figure 6 Enlarged structural diagram at A in the middle.

[0017] In the figure: 1. pickling seat; 2. stainless steel pipe fittings; 3. pickling assembly; 31. fixed plate; 32. rotating ring; 33. connecting rod; 34. movable sleeve; 35. brush mechanism; 351. pickling cylinder; 352. fluff strip; 353. paste inlet pipe; 36. ring rack; 37. gear; 38. motor 1; 4. support seat; 5. hydraulic cylinder; 6. limit rod; 7. bracket; 8. lifting assembly; 81. connecting block; 82. double-axis motor; 83. lifting rod; 84. screw; 85. movable plate; 86. connecting rod; 9. conveying assembly; 91. conveyor belt; 92. power unit; 10. base; 11. slide groove; 12. slider. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] A method for preparing high-strength stainless steel comprises the high-strength stainless steel pickling device.

[0020] See also Figures 1 to 3 A high-strength stainless steel preparation method and pickling device, comprising a pickling seat 1, a stainless steel pipe 2 is installed inside the pickling seat 1, a pickling assembly 3 is arranged inside the pickling seat 1, the pickling assembly 3 comprises a fixed disk 31, a rotating ring 32, a connecting rod 33, a movable sleeve 34, a brush mechanism 35, an annular rack 36, a gear 37, and a motor 38, the number of fixed disks 31 is two and they are arranged on both sides of the pickling seat 1, a rotating ring 32 is arranged inside the fixed disk 31, connecting rods 33 are arranged at the outer triangular parts of the fixed disk 31, a movable sleeve 34 is arranged between the connecting rods 33 and the rotating ring 32, a brush mechanism 35 is arranged between the connecting rods 33 on the left and right sides, an annular rack 36 is arranged on the outer surface of the rotating ring 32, a gear 37 is arranged on the top of the annular rack 36, and a motor 38 is arranged on one side of the gear 37; By providing the pickling component 3, the pickling paste can be applied to the surface of the stainless steel pipe fitting 2. The fluidity of the pickling paste is low, which reduces the probability of dripping and splashing. By starting the motor 38 in conjunction with the gear 37, the annular rack 36, the rotating ring 32, and the movable sleeve 34, the three sets of brush mechanisms 35 can be fitted with the surface of the stainless steel pipe fitting 2, and the pickling paste can be applied to the surface of the stainless steel pipe fitting 2 through the brush mechanism 35.

[0021] See also Figures 1 to 3, the fixed disk 31 is fixedly connected to one side of the pickling seat 1, the rotating ring 32 is rotatably connected to the inner wall of the fixed disk 31, one end of the connecting rod 33 is rotatably connected to the outer side of the fixed disk 31, the movable sleeve 34 is rotatably connected to the rotating ring 32, and the movable sleeve 34 is sleeved on the surface of the connecting rod 33, the two ends of the brush mechanism 35 are respectively fixedly connected to the end of the connecting rod 33, the annular rack 36 is fixedly connected to the outer surface of the rotating ring 32, the gear 37 is meshed with the annular rack 36, the motor 1 38 is fixedly connected to the inside of the fixed disk 31, and the output shaft of the motor 1 38 is fixedly connected to the gear 37; By starting the motor 1 38, the gear 37 is driven to rotate, and the annular rack 36 is driven to rotate, thereby driving the rotating ring 32 to rotate. When the rotating ring 32 rotates, the movable sleeve 34 is driven to move, thereby driving the connecting rod 33 to rotate, so that the three connecting rods 33 rotate toward the stainless steel pipe fitting 2 at the same time, and finally the brush mechanism 35 is fitted with the surface of the stainless steel pipe fitting 2.

[0022] See also Figure 3 to Figure 4 The brush mechanism 35 includes a pickling cylinder 351, a fluff strip 352, and a paste inlet pipe 353. The pickling cylinder 351 is fixedly connected between the connecting rods 33 on the left and right sides. The pickling cylinder 351 is hollow inside and has a through hole on the surface. The fluff strip 352 is fixedly connected to the through hole on the surface of the pickling cylinder 351. The paste inlet pipe 353 is fixedly connected to one side of the pickling cylinder 351. The paste inlet pipe 353 is connected to the pickling paste delivery pipe, the pickling paste is delivered to the pickling cylinder 351, and then flows into the fluff strip 352 to wet it, and the pickling paste is applied to the surface of the stainless steel pipe 2 through the fluff strip 352.

[0023] See also Figure 1 and Figure 5 , support seats 4 are provided on both sides of the pickling seat 1, a hydraulic cylinder 5 is fixedly installed on the inner wall of the support seat 4, the output shaft of the hydraulic cylinder 5 is fixedly connected to the bottom of the bracket 7, and both ends of the bottom of the bracket 7 are fixedly connected to the limit rod 6, the bottom of the pickling seat 1 is fixedly connected to the base 10, and the upper surface of the base 10 is provided with a slide groove 11, and the bottom of the support seat 4 is fixedly connected to a slider 12, and the slider 12 is located inside the slide groove 11; Then, by starting the hydraulic cylinder 5, the bracket 7 can be pushed to move up and down, and at the same time, the pipe fitting can be driven to move up and down, so that the axis of the pipe fitting can be consistent with the circular mouth axis of the pickling seat 1, and when the bracket 7 moves up and down, it can drive the limit rod 6 to slide inside the support seat 4 to increase stability.

[0024] See also Figures 5 and 6, brackets 7 are provided on both sides of the pickling seat 1, and a lifting assembly 8 is provided on the top of the bracket 7. The lifting assembly 8 includes a connecting block 81, a double-axis motor 82, a lifting rod 83, a screw 84, a movable plate 85, and a connecting rod 86. The top of the bracket 7 is fixedly connected with the connecting block 81, and the double-axis motor 82 is fixedly installed inside the connecting block 81. The lifting rod 83 is rotatably connected to both ends of the top of the connecting block 81. The output shafts at both ends of the double-axis motor 82 are fixedly connected with the screw 84, and one end of the screw 84 is movably connected to the inner wall of the bracket 7. The surface of the screw 84 is threadedly connected with a movable plate 85, and a connecting rod 86 is movably connected between the movable plate 85 and the lifting rod 83; By providing a lifting assembly 8, stainless steel pipe fittings 2 of different specifications can be lifted. By starting the dual-axis motor 82 in conjunction with the screw 84, movable plate 85, and connecting rod 86, the two lifting rods 83 are moved toward the stainless steel pipe fitting 2 at the same time, and finally the conveyor belt 91 is fitted with the surface of the pipe fitting to clamp the pipe fitting in place.

[0025] See also Figure 6 to Figure 7 The two lifting rods 83 are V-shaped, and a conveying assembly 9 is arranged inside the lifting rod 83. The conveying assembly 9 includes a conveyor belt 91 and a power unit 92. The conveyor belt 91 is rotatably connected inside the lifting rod 83. The power unit 92 is fixedly installed on one side of the lifting rod 83. The output shaft of the power unit 92 is fixedly connected to the rotating shaft of the conveyor belt 91, and the top of the conveyor belt 91 is in contact with the surface of the stainless steel pipe 2. By starting the power unit 92 to drive the conveyor belt 91 to rotate, the stainless steel pipe fitting 2 can be driven to rotate, so that the pickling paste is evenly applied to the entire outer surface of the stainless steel pipe fitting 2.

[0026] In the present invention, the working principle of the device is as follows: When in use, the stainless steel pipe fitting 2 is passed through the interior of the pickling seat 1, and the two ends are placed on the top of the left and right support seats 4 respectively, so that the stainless steel pipe fitting 2 is located on the top of the connecting block 81, and then the double-axis motor 82 is started to operate, driving the screw rods 84 at both ends to rotate, and at the same time driving the movable plate 85 to move horizontally, and the connecting rod 86 can drive the lifting rod 83 to rotate, so that the two lifting rods 83 move toward the stainless steel pipe fitting 2 at the same time, and finally the conveyor belt 91 is fitted with the surface of the pipe fitting, and the pipe fitting is clamped and positioned, and then the bracket 7 can be pushed to move up and down by starting the hydraulic cylinder 5, and the pipe fitting is driven to move up and down at the same time, so that the axis of the pipe fitting is consistent with the axis of the circular mouth of the pickling seat 1, and different types of stainless steel pipe fittings 2 can be lifted and positioned; After the stainless steel pipe fitting 2 is positioned, the motor 38 is started to drive the gear 37 to rotate, and the annular rack 36 is driven to rotate, thereby driving the rotating ring 32 to rotate. When the rotating ring 32 rotates, the movable sleeve 34 will be driven to move, thereby driving the connecting rod 33 to rotate, so that the three connecting rods 33 rotate toward the stainless steel pipe fitting 2 at the same time, and finally the brush mechanism 35 is fitted with the surface of the stainless steel pipe fitting 2, and the paste inlet pipe 353 is connected to the pickling paste delivery pipe, and the pickling paste is delivered to the pickling cylinder 351, and then flows into the fluff strip 352 to moisten it, and the pickling paste is applied to the surface of the stainless steel pipe fitting 2 through the fluff strip 352, and at the same time, the power unit 92 is started to drive the conveyor belt 91 to rotate, which can drive the stainless steel pipe fitting 2 to rotate, so that the pickling paste is evenly applied to the entire outer surface of the stainless steel pipe fitting 2, so as to achieve the purpose of pickling processing.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength stainless steel pickling device, comprising a pickling seat (1), characterized in that: A stainless steel pipe (2) is installed inside the pickling seat (1), and a pickling assembly (3) is arranged inside the pickling seat (1); The pickling assembly (3) comprises a fixed disk (31), a rotating ring (32), a connecting rod (33), a movable sleeve (34), a brush mechanism (35), an annular rack (36), a gear (37), and a motor (38). The number of the fixed disks (31) is two and they are arranged on both sides of the pickling seat (1). The rotating ring (32) is arranged inside the fixed disk (31). The outer triangular parts of the fixed disk (31) are each provided with a connecting rod (33). A movable sleeve (34) is arranged between the connecting rod (33) and the rotating ring (32). The brush mechanism (35) is arranged between the connecting rods (33) on the left and right sides. The outer surface of the rotating ring (32) is provided with an annular rack (36). The top of the annular rack (36) is provided with a gear (37). The motor (38) is arranged on one side of the gear (37).

2. A high-strength stainless steel pickling device according to claim 1, characterized in that: The pickling seat (1) is provided with a bracket (7) on both sides, and a lifting assembly (8) is provided on the top of the bracket (7). The lifting assembly (8) comprises a connecting block (81), a double-axis motor (82), a lifting rod (83), a screw (84), a movable plate (85), and a connecting rod (86). The top of the bracket (7) is fixedly connected to the connecting block (81), the inside of the connecting block (81) is fixedly installed with the double-axis motor (82), the top two ends of the connecting block (81) are rotatably connected to the lifting rod (83), the output shafts at both ends of the double-axis motor (82) are fixedly connected to the screw (84), and one end of the screw (84) is movably connected to the inner wall of the bracket (7), the surface of the screw (84) is threadedly connected to the movable plate (85), and a connecting rod (86) is movably connected between the movable plate (85) and the lifting rod (83).

3. A high-strength stainless steel pickling device according to claim 1, characterized in that: The fixed disk (31) is fixedly connected to one side of the pickling seat (1); the rotating ring (32) is rotatably connected to the inner wall of the fixed disk (31); one end of the connecting rod (33) is rotatably connected to the outer side of the fixed disk (31); the movable sleeve (34) is rotatably connected to the rotating ring (32), and the movable sleeve (34) is sleeved on the surface of the connecting rod (33); both ends of the brush mechanism (35) are respectively fixedly connected to the end of the connecting rod (33); the annular rack (36) is fixedly connected to the outer surface of the rotating ring (32); the gear (37) is meshed with the annular rack (36); the motor 1 (38) is fixedly connected to the inside of the fixed disk (31), and the output shaft of the motor 1 (38) is fixedly connected to the gear (37).

4. A high-strength stainless steel pickling device according to claim 1, characterized in that: The brush mechanism (35) comprises a pickling cylinder (351), a fluff strip (352), and a paste inlet pipe (353); the pickling cylinder (351) is fixedly connected between the connecting rods (33) on the left and right sides; the pickling cylinder (351) is hollow inside and has a through hole on its surface; the fluff strip (352) is fixedly connected in the through hole on the surface of the pickling cylinder (351); and the paste inlet pipe (353) is fixedly connected to one side of the pickling cylinder (351).

5. A high-strength stainless steel pickling device according to claim 2, characterized in that: Support seats (4) are provided on both sides of the pickling seat (1), a hydraulic cylinder (5) is fixedly mounted on the inner wall of the support seat (4), an output shaft of the hydraulic cylinder (5) is fixedly connected to the bottom of a bracket (7), and both ends of the bottom of the bracket (7) are fixedly connected to limit rods (6).

6. A high-strength stainless steel pickling device according to claim 2, characterized in that: The two lifting rods (83) are V-shaped. A conveying assembly (9) is arranged inside the lifting rod (83). The conveying assembly (9) includes a conveyor belt (91) and a power unit (92). The conveyor belt (91) is rotatably connected inside the lifting rod (83). The power unit (92) is fixedly installed on one side of the lifting rod (83). The output shaft of the power unit (92) is fixedly connected to the rotating shaft of the conveyor belt (91).

7. A high-strength stainless steel preparation method and pickling device according to claim 6, characterized in that: The top of the conveyor belt (91) is in contact with the surface of the stainless steel pipe (2).

8. A high-strength stainless steel pickling device according to claim 5, characterized in that: The bottom of the pickling seat (1) is fixedly connected to a base (10), the upper surface of the base (10) is provided with a slide groove (11), and the bottom of the support seat (4) is fixedly connected to a slider (12), the slider (12) is located inside the slide groove (11).

9. A method for preparing high-strength stainless steel, characterized in that: A high-strength stainless steel pickling device comprising any one of claims 1-8.

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