Stainless steel seamless tube pickling machine

Abstract

The utility model relates to the technical field of stainless steel pickling equipment, in particular to a stainless steel seamless tube pickling machine which comprises a pickling tank, a lifting mechanism, a conveying mechanism and a slag scraping assembly, the conveying assembly is arranged on the front side of the pickling tank and used for conveying a stainless steel seamless tube into the pickling tank, and the slag scraping assembly is arranged at the bottom of the pickling tank and used for conveying the stainless steel seamless tube into the pickling tank. Lifting mechanisms which are symmetrically distributed are fixedly arranged at the top end of the pickling tank, each lifting mechanism comprises a lifting frame, each lifting frame comprises a first hollowed-out plate, a second hollowed-out plate and a baffle, and the second hollowed-out plate is vertically arranged on the side, away from the conveying mechanism, of each first hollowed-out plate; the baffles are vertically arranged on the two sides of the first hollowed-out plate and the two sides of the second hollowed-out plate, and the end, close to the conveying mechanism, of the first hollowed-out plate is higher than the other end. The stainless steel seamless tube which is lifted after pickling is finished is in an inclined state, and the residual pickling solution can flow out of the pickling tank from the lower end, so that the residual degree of the pickling solution in the tube is reduced, and the safety performance of the production process is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pickling equipment, in particular to a stainless steel seamless pipe pickling machine. Background Art

[0002] Stainless steel seamless pipes can be treated by an environmentally friendly room-temperature pickling process. Appropriate pickling is also carried out at room temperature. Lower acid solubility and lower pickling temperature are used to prevent the metal matrix from absorbing hydrogen atoms and reduce the generation of acid mist. Stainless steel seamless pipes produced by this process can be used for hydrogen energy transportation.

[0003] At present, a Chinese utility model with a publication date of October 24, 2023 and a publication number of CN219886192U discloses a seamless steel pipe pickling device, including a pickling tank, a clamping assembly including a positioning plate and a mounting plate, the positioning plate and the mounting plate are offset and aligned, a slide groove is provided on the side of the mounting plate close to the positioning plate, and the internal sliding card of the slide groove is provided with symmetrically distributed sliders, and a guide rod is movably penetrated through the middle of the slider, and a first push rod is fixedly provided at one end of the guide rod close to the positioning plate; by sleeve-arranging one end of the seamless steel pipe on the second push rod, and then driving the limit plate to quickly reset by the spring force, and inserting the first push rod into the seamless steel pipe, the seamless steel pipe can be clamped and fixed, thereby achieving the purpose of convenient fixation; the lifting plate is driven to move by the adjusting tube, the lifting plate drives the connecting plate to move, and the connecting plate drives the clamping assembly to move into the pickling tank, so that the seamless steel pipe is immersed in the pickling liquid, so that the seamless steel pipe can be conveniently pickled, thereby achieving the purpose of convenient picking and placing.

[0004] However, when the lifting mechanism raises the stainless steel seamless pipe after pickling, under the action of the spring, the limit baffle is tightly abutted against the lower end of the stainless steel pipe, which is not conducive to the outflow of the residual pickling liquid in the pipeline and has poor safety. Utility Model Content

[0005] In order to reduce the residue of pickling liquid in a stainless steel seamless pipe at the end of pickling, the utility model provides a stainless steel seamless pipe pickling machine.

[0006] The utility model provides a stainless steel seamless pipe pickling machine, a stainless steel seamless pipe pickling machine comprising a pickling tank, a lifting mechanism, a transmission mechanism and a scraping assembly, the transmission assembly is arranged at the front side of the pickling tank, and is used to transport the stainless steel seamless pipe to the pickling tank, the scraping assembly is arranged at the bottom of the pickling tank, and a symmetrically distributed lifting mechanism is fixedly arranged on the top of the pickling tank, the lifting mechanism comprises a lifting frame, the lifting frame comprises a first hollow plate, a second hollow plate and a baffle, the second hollow plate is vertically arranged on the side of the first hollow plate away from the transmission mechanism, the baffle is vertically arranged on both sides of the first hollow plate and the second hollow plate, a plurality of V-shaped grooves are arranged on the surface of the first hollow plate, and one end of the first hollow plate close to the transmission mechanism is higher than the other end.

[0007] By adopting the above technical solution, the grooves and inclined settings on the surface of the first hollow plate ensure the stability of the seamless steel pipe during the pickling process and reduce the scratches caused by the collision of the seamless pipes. At the end of pickling, the lifting frame is lifted along with the lifting mechanism. At this time, the stainless steel seamless pipe is in an inclined state, and the residual pickling liquid will flow to the side close to the second hollow plate, reducing the residual pickling liquid in the pipe and reducing the possibility of the pickling liquid inside the seamless pipe irritating the skin of the staff when it moves to the next production link, thereby improving the safety of the production process.

[0008] Optionally, the lifting mechanism also includes a lifting plate, a threaded rod movably passing through the middle of the lifting plate, the bottom end of the threaded rod is fixedly installed on the pickling tank, a connecting plate is fixedly arranged on one side of the middle of the lifting plate, the bottom ends of the two connecting plates are respectively fixedly connected to the baffles on both sides, limit rods movably pass through both ends of the lifting plate, the bottom end of the limit rod is fixedly installed in the pickling tank, and a limit rod is provided at the top of the fixed pipe.

[0009] By adopting the above technical solution, when the pickling process is required, the baffle is driven by the lifting mechanism, and the baffle is fixedly connected to the first hollow plate and enters the pickling tank. At the same time, the stainless steel seamless pipe is also immersed in the pickling tank. When the pickling is completed, the stainless steel seamless pipe is also lifted to the upper end of the pickling tank by the lifting mechanism to prepare for the next step. The lifting device reduces the danger of manual placement of stainless steel seamless pipes for pickling, saves human resources, reduces interference from human factors, and also improves product quality and reduces product loss.

[0010] Optionally, an adjustment sleeve is provided outside the threaded rod, a first gear is fixedly provided at the lower end of the adjustment sleeve, a second gear is meshed at the outer side of the first gear, and a motor is fixedly connected to the second gear close to the lifting plate.

[0011] By adopting the above technical solution, the speed and torque of the motor are transmitted to the first gear and the second gear, and the stainless steel seamless pipe is indirectly lifted and lowered. The motor can increase the power of the lifting mechanism, accurately control the parameters, and improve the production accuracy and reliability.

[0012] Optionally, a slot is further provided at one end of the baffle away from the transmission mechanism, and the second hollow plate is slidably connected to the slot.

[0013] By adopting the above technical solution, before pickling, the stainless steel seamless pipe slides into the groove of the inclined first hollow plate through the transmission mechanism, and the second hollow plate provides stable support for the inclined seamless pipe; after pickling, the lifting mechanism is lifted, and the second hollow plate is opened to facilitate the seamless pipe to slide along the inclined angle to the next transmission process. The detachable and movable second hollow plate improves the portability and safety of the product.

[0014] Optionally, the transmission mechanism includes a support frame, a drive assembly and a conveying roller, the support frame is arranged at the lower end of the conveying roller, the drive assembly is arranged at one end of the connection between the conveying roller and the support frame, and a plurality of roller grooves are arranged on the conveying roller, and the positions of the roller grooves correspond to the positions of the V-shaped grooves.

[0015] By adopting the above technical solution, the grooves of the drum are conducive to the stable placement of the long stainless steel seamless pipes, which improves the safety performance and avoids the collision between the seamless pipes. The height of the support frame is set so that the stainless steel pipes can be stably transferred to the lifting frame. At the same time, the transmission mechanism improves the automation of the pickling machine, has a large transmission capacity, and reduces the inconvenience of manual handling and transmission.

[0016] Optionally, the scraping mechanism includes a slide groove, a scraper, a handle, a first connecting rod, a second connecting rod and a connecting ring, the slide groove is opened on the inner side of the baffles at both ends, the two ends of the scraper are slidably connected inside the slide groove, the upper end of the scraper is fixedly connected to the first connecting rod, one end of the second connecting rod is connected to the first connecting rod bearing through the connecting ring, and the other end of the second connecting rod is fixedly connected to the handle.

[0017] By adopting the above technical solution, pickling is to use acid solution to remove the oxide scale and rust on the metal surface. After pickling, the pickling liquid will have impurities. At this time, you can hold the handle on the second connecting rod tightly, drive the first connecting rod and the scraper to the other end of the pickling tank through the connecting ring, so as to collect the impurities at one end of the pickling tank, which is convenient for cleaning. After the end, just pull it back to its original position by the handle. Through the bearing connection, the second connecting rod is pulled diagonally forward, the friction is reduced, the load is reduced, and it is more labor-saving.

[0018] Optionally, a drain pipe is provided at the bottom of one end of the pickling tank.

[0019] By adopting the above technical scheme, the seamless pipe is treated by a room temperature pickling and passivation process, and a suitable pickling solution is selected. After the pickling is completed, the impurities in the pickling solution are scraped off and then recovered and discharged through the drainage pipe.

[0020] In summary, the utility model includes at least one of the following beneficial technical effects:

[0021] 1. Through the inclination setting of the first hollow plate at the bottom of the lifting frame and the effective cooperation with the second hollow plate, when the stainless steel seamless pipe is lifted after pickling, the residual pickling liquid in the pipe can flow out from the lower end at an inclined angle, reducing the residual pickling liquid in the pipe and the possibility of irritation to the skin of workers by the pickling liquid inside when the seamless pipe moves to the next production link, thereby improving the safety of the production process and ensuring the cleanliness and safety of the production environment.

[0022] 2. Through the cooperation between the roller groove in the transmission mechanism and the V-shaped groove in the lifting frame, the long stainless steel seamless pipe can be accurately and stably transmitted to the next link, which ensures the stability and integrity of the stainless steel pipe, reduces the scratches caused by the collision between the stainless steel seamless pipes during transmission, and reduces the labor intensity of manual labor.

[0023] 3. After pickling, impurities will remain in the pickling liquid. You can pull the handle to slide the scraper indirectly. The precipitated impurities will be scraped off to the other end away from the drain pipe through the scraper at the bottom. Then open the drain pipe and recover and discharge the initially filtered pickling liquid through the drain pipe. After the removal is completed, the remaining impurities can be removed, and then the handle can be pulled to drive the scraper back to its original position.

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall three-dimensional structure of this embodiment;

[0026] Figure 2 for Figure 1 Sectional view at AA;

[0027] Figure 3 It is a schematic diagram of the overall three-dimensional structure of the transmission mechanism;

[0028] Figure 4 for Figure 2 The enlarged schematic diagram of the middle B part;

[0029] Figure 5 for Figure 2 Enlarged schematic diagram of middle C part;

[0030] Explanation of the reference numerals: 100, pickling tank; 110, drain pipe; 200, lifting mechanism; 210, lifting frame; 211, first hollow plate; 212, second hollow plate; 213, V-shaped groove; 214, baffle; 215, slot; 220, threaded rod; 230, lifting plate; 240, connecting plate; 250, limit rod; 260, limit plate; 270, adjustment sleeve; 280, motor; 281, first gear; 282, second gear; 300, transmission mechanism; 310, support frame; 320, drive assembly; 330, conveying roller; 331, roller groove; 400, scraper assembly; 410, slide groove; 420, scraper; 430, handle; 440, first connecting rod; 450, second connecting rod; 460, connecting ring. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] The following combination Figure 1-Figure 5 The utility model is described in further detail.

[0035] This embodiment discloses a stainless steel seamless pipe pickling machine, referring to Figure 1-Figure 5 A stainless steel seamless pipe pickling machine includes a pickling tank 100, a lifting mechanism 200, a transmission mechanism 300 and a scraping assembly 400. The transmission assembly is arranged at the front side of the pickling tank 100, and the top of the pickling tank 100 is fixed with a symmetrically distributed lifting mechanism 200.

[0036] Reference Figure 1-Figure 4A lifting frame 210 is connected in the middle of the lifting mechanism 200, and a first hollow plate 211 is arranged at the bottom of the lifting frame 210. A plurality of V-shaped grooves 213 are arranged on the surface of the first hollow plate 211. One end of the first hollow plate 211 close to the transmission mechanism 300 is higher than the other end. Baffles 214 are vertically arranged on both sides of the first hollow plate 211 close to the lifting mechanism 200, and a second hollow plate 212 is vertically arranged on the side of the first hollow plate 211 away from the transmission mechanism 300. The lifting mechanism 200 also includes a lifting plate 230, a threaded rod 220 is movably passed through the middle of the lifting plate 230, and the bottom end of the threaded rod 220 is fixedly installed on the pickling tank 100. A connecting plate 240 is fixedly arranged on one side of the middle of the lifting plate 230, and the bottom ends of the two connecting plates 240 are respectively fixedly connected to the baffles 214 on both sides. A fixed pipe 250 is movably passed through both ends of the lifting plate 230, and the bottom end of the fixed pipe 250 is fixedly installed on the pickling tank 100, and a limit plate 260 is arranged on the top of the fixed pipe 250. The threaded rod 220 is provided with an adjustment sleeve 270, and the lower end of the adjustment sleeve 270 is fixedly provided with a first gear 281, and the outer side of the first gear 281 is meshed with a second gear 282, and the second gear 282 is fixedly connected with a motor 280 near the lifting plate 230. The baffle 214 is also provided with a slot 215 at the end away from the transmission mechanism 300, and the second hollow plate 212 is slidably connected to the slot 215.

[0037] When the pickling process is required, the lifting frame 210 is driven by the lifting mechanism 200 so that the end of the lifting frame 210 close to the transmission mechanism 300 is flush with the top of the pickling tank 100, and the stainless steel seamless pipe smoothly enters the V-shaped groove 213 on the first hollow plate 211. At this time, the second hollow plate 212 provides stable support for the inclined seamless pipe. The lifting mechanism 200 and the connecting plate 240 are driven by the starting motor 280. The connecting plate 240 is fixedly connected to the lifting frame 210 and enters the pickling tank 100. During the pickling process, the grooves and the inclined settings on the surface of the first hollow plate 211 ensure the stability of the seamless steel pipe and reduce scratches caused by collisions between seamless pipes. At the end of pickling, the lifting frame 210 is lifted along with the lifting mechanism 200, and the lower end of the first hollow plate 211 is lifted to be flush with the top of the pickling tank 100. At this time, the stainless steel seamless pipe is in an inclined state, and the residual pickling liquid will flow to the side close to the second hollow plate 212, reducing the residual pickling liquid in the pipe and the possibility of the pickling liquid inside irritating the skin of the workers when the seamless pipe moves to the next production link, thereby improving the safety of the production process. After the residual pickling liquid flows out, the second hollow plate 212 can be slid out through the card slot 215. At this time, the opened second hollow plate 212 facilitates the seamless pipe to slide to the next transmission process along the inclined angle. The detachable and movable second hollow plate 212 improves the portability and safety of the product.

[0038] Reference Figure 1-Figure 5 The transmission mechanism 300 includes a support frame 310, a driving assembly 320 and a conveying roller 330. The support frame 310 is arranged at the lower end of the conveying roller 330. The driving assembly 320 is arranged at one end of the connection between the conveying roller 330 and the support frame 310. The conveying roller 330 is provided with a plurality of roller grooves 331, and the position of the roller grooves 331 corresponds to the V-shaped groove 213. The scraping mechanism includes a chute 410, a scraper 420, a handle 430, a first connecting rod 440, a second connecting rod 450 and a connecting ring 460. The chute 410 is opened inside the baffles 214 at both ends. The two ends of the scraper 420 are slidably connected inside the chute 410. The upper end of the scraper 420 is fixedly connected to the first connecting rod 440. One end of the second connecting rod 450 is connected to the first connecting rod 440 through the connecting ring 460. The other end of the second connecting rod 450 is fixedly connected to the handle 430. A drainage pipe 110 is provided at the bottom of one end of the pickling tank 100 .

[0039] Before pickling, the driving assembly 320 on the conveying mechanism is turned on, and the stainless steel seamless pipe is conveyed to one end of the pickling tank 100 through the conveying roller 330 on the transmission mechanism 300, wherein the roller groove 331 on the conveying roller 330 is conducive to the stable transmission of the long stainless steel seamless pipe, avoiding the scratches and loss caused by the collision of the stainless steel seamless pipes, and the height of the support frame 310 is set so that the stainless steel pipe can be stably transmitted to the V-shaped groove 213 corresponding to the first hollow plate 211 in the lifting frame 210. At the same time, the transmission mechanism 300 improves the automation of the pickling machine, has a large conveying capacity, and reduces the inconvenience of manual handling and transmission. After pickling, impurities will remain in the pickling liquid. At this time, the lifting mechanism 200 is used to raise the lifting frame 210 to the highest position. The staff can pull the handle 430 to indirectly slide the scraper 420, and the precipitated impurities are scraped off to the other end away from the drain pipe 110 through the scraper 420 at the bottom, and then the drain pipe 110 is opened to recover and discharge the initially filtered pickling liquid through the drain pipe 110. After the acid is removed, the remaining impurities can be removed, and then the handle 430 is pulled to drive the scraper 420 back to its original position.

[0040] The implementation principle of a stainless steel seamless pipe pickling machine in this embodiment is:

[0041] During pickling, by starting the driving assembly 320 in the transmission mechanism 300, the stainless steel seamless pipe is transmitted to the pickling tank 100 along with the conveying roller 330. The inclined first hollow plate 211 and the V-shaped groove 213 are conducive to the stainless steel seamless pipe to smoothly enter the lifting frame 210. At this time, the second hollow plate 212 provides stable support for the inclined seamless pipe. The motor 280 of the lifting mechanism 200 is started to drive the first gear 281, the second gear 282, the lifting plate 230 and the connecting plate 240 through the threaded rod 2 The adjusting sleeve 270 on 20 can lower the fixedly connected lifting frame 210 into the pickling tank 100 for pickling. After the soaking is completed, the lower end of the first hollow plate 211 in the lifting frame 210 is raised to be flush with the top of the pickling tank 100 through the lifting mechanism 200. At this time, the residual acid in the pipeline can flow out from the lower end. After the residual pickling liquid flows out, the second hollow plate 212 can be slid out through the card slot 215. At this time, the opened second hollow plate 212 facilitates the seamless pipe to slide to the next transmission process along the inclined angle. After the pickling is finished, the pickling liquid will have impurities, which will settle at the bottom of the pickling tank 100 after being still. The lifting mechanism 200 is driven by the motor 280 to raise the lifting frame 210 to the highest point, and the lifting frame 210 is raised to the height above the head. At this time, the staff can hold the handle 430 on the second connecting rod 450, and drive the first connecting rod 440 and the scraper 420 to pull toward the other end of the pickling tank 100 in the opened chute 410 through the connecting ring 460, so as to collect the impurities at one end of the pickling tank 100, and then open the drain pipe 110 to recover and discharge the initially filtered pickling liquid through the drain pipe 110. After the acid removal is finished, the remaining impurities can be removed, and then the handle 430 is pulled to drive the scraper 420 back to its original position.

[0042] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A stainless steel seamless pipe pickling machine, characterized in that: The invention comprises a pickling tank (100), a lifting mechanism (200), a transmission mechanism (300) and a scraping assembly (400), wherein the transmission mechanism (300) is arranged at the front side of the pickling tank (100) and is used to transport the stainless steel seamless pipe to the pickling tank (100), the scraping assembly (400) is arranged at the bottom of the pickling tank (100), and the top of the pickling tank (100) is fixedly provided with a symmetrically distributed lifting mechanism (200), and the lifting mechanism (200) comprises a lifting frame (210), and the lifting frame (210) is provided with a plurality of lifting mechanisms (211). 10) comprises a first hollow plate (211), a second hollow plate (212) and a baffle (214), wherein the second hollow plate (212) is vertically arranged on a side of the first hollow plate (211) away from the transmission mechanism (300), and the baffle (214) is vertically arranged on both sides of the first hollow plate (211) and the second hollow plate (212), a plurality of V-shaped grooves (213) are arranged on the surface of the first hollow plate (211), and one end of the first hollow plate (211) close to the transmission mechanism (300) is higher than the other end.

2. A stainless steel seamless pipe pickling machine according to claim 1, characterized in that: The lifting mechanism (200) further comprises a lifting plate (230), a threaded rod (220) movably passing through the middle of the lifting plate (230), the bottom end of the threaded rod (220) being fixedly mounted on the pickling tank (100), a connecting plate (240) being fixedly arranged on one side of the middle of the lifting plate (230), the bottom ends of the two connecting plates (240) being respectively fixedly connected to the baffles (214) on both sides, limiting rods (250) movably passing through the two ends of the lifting plate (230), the bottom end of the limiting rod (250) being fixedly mounted on the pickling tank (100), and a limiting plate (260) being arranged at the top of the limiting rod (250).

3. A stainless steel seamless pipe pickling machine according to claim 2, characterized in that: An adjustment sleeve (270) is provided outside the threaded rod (220), a first gear (281) is fixedly provided at the lower end of the adjustment sleeve (270), a second gear (282) is meshed on the outer side of the first gear (281), and a motor (280) is fixedly connected to the second gear (282) on a side close to the lifting plate (230).

4. A stainless steel seamless pipe pickling machine according to claim 1, characterized in that: The baffle plate (214) is also provided with a slot (215) at one end away from the transmission mechanism (300), and the second hollow plate (212) is slidably connected to the slot (215).

5. A stainless steel seamless pipe pickling machine according to any one of claims 1 to 4, characterized in that: The transmission mechanism (300) comprises a support frame (310), a driving assembly (320) and a conveying roller (330); the support frame (310) is arranged at the lower end of the conveying roller (330); the driving assembly (320) is arranged at one end of the connection between the conveying roller (330) and the support frame (310); a plurality of roller grooves (331) are arranged on the conveying roller (330); the positions of the roller grooves (331) correspond to the V-shaped grooves (213).

6. A stainless steel seamless pipe pickling machine according to claim 1, characterized in that: The scraper assembly (400) includes a slide groove (410), a scraper (420), a handle (430), a first connecting rod (440), a second connecting rod (450) and a connecting ring (460), wherein the slide groove (410) is opened on the inner side of the baffle plates (214) at both ends, and the two ends of the scraper (420) are slidably connected inside the slide groove (410), and the upper end of the scraper (420) is fixedly connected to the first connecting rod (440), one end of the second connecting rod (450) is connected to the bearing of the first connecting rod (440) through the connecting ring (460), and the other end of the second connecting rod (450) is fixedly connected to the handle (430).

7. A stainless steel seamless pipe pickling machine according to claim 1, characterized in that: A drainage pipe (110) is provided at the bottom of one end of the pickling tank (100).

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