Pipe making machine for steel pipe production and pipe making method

Abstract

The invention relates to the technical field of steel pipe production, and provides a pipe making machine for steel pipe production and a pipe making method.The pipe making machine for steel pipe production comprises a pipe making machine body, a transition box body, a primary filtering assembly, a connecting air bellow, a dust removal box body, a dust removal assembly, a vibration assembly and a discharging valve; the transition box body is fixedly installed on the side portion of the pipe making machine body, the primary filtering assembly and the connecting air bellow are fixedly installed in the transition box body, the dust removal box body is fixedly installed on the connecting air bellow, the dust removal assembly is installed on the dust removal box body, and the vibration assembly is installed on the dust removal box body. By means of the technical scheme, the problem that in the prior art, stable dust removal is difficult due to the fact that the diffusion range of generated dust is wide and the adhesive force in the dust is high when a steel pipe is welded and a welded weld joint is polished in the pipe manufacturing process is solved.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe production, and in particular to a pipe making machine and a pipe making method for steel pipe production. Background Art

[0002] A steel pipe refers to a steel component with a smooth inner wall, a hollow core, and is used to transport fluids. Steel pipes are generally divided into two categories according to their uses: structural steel pipes and fluid transport steel pipes. They are widely used in construction, petroleum, chemical industry, shipbuilding and other fields. Currently, steel pipes are mainly manufactured using pipe making machines. In the process of manufacturing steel pipes, the steel pipes will be welded after they are formed, and the welded positions will be polished to make the surface of the steel pipes smoother, repair scratches and other damage that may occur on the surface of the steel pipes during the production process, and improve the durability of the steel pipes.

[0003] During the process of welding steel pipes and grinding the welds on steel pipes, a large amount of dust particles and smoke will float in the air. The dust generated when grinding the welds of steel pipes is mainly due to the decomposition and wear of substances such as carbides, oxides and metal powders on the surface of the steel pipes under high temperature and high-speed friction. It usually has strong adhesion and small particle size. The large amount of smoke generated during the welding process will reduce the air quality of the working environment and cause pollution to the surrounding workers and other organisms. In addition, if the ventilation is not smooth, the indoor air quality will deteriorate and the risk of illness will increase. Therefore, the generated dust needs to be removed.

[0004] When removing the dust generated in the steel pipe production process, the dust particles generated when welding the steel pipe and grinding the welds on the steel pipe are inconsistent in size, some particles are larger, some particles are smaller, and the steel pipe usually needs to be ground on the ground or on a rack. The dust generated has a wide diffusion range, which will cause the effect of the dust removal device to be unstable and the dust is not easy to be collected in a concentrated manner by the dust removal device.

[0005] In view of the above problems existing in the prior art, we have designed a pipe making machine and a pipe making method for steel pipe production. Summary of the invention

[0006] The present invention provides a pipe making machine and a pipe making method for steel pipe production, which solves the problem in the related art that when welding steel pipes and grinding the welds after welding during the pipe making process, it is difficult to stably remove dust due to the wide diffusion range of the generated dust and the strong adhesion of the dust.

[0007] The technical solution of the present invention is as follows: A pipe making machine for steel pipe production, comprising a pipe making machine body, and further comprising: A transition box, the transition box is fixedly mounted on the side of the pipe making machine body; A primary filter assembly is fixedly installed inside the transition box and is used for preliminary purification of waste gas generated during the production of steel pipes; A connecting bellows, the connecting bellows being fixedly mounted on a side of the transition box away from the pipe making machine body; A dust removal box, the dust removal box is fixedly mounted on the connecting bellows; Wherein, the connecting bellows are respectively connected with the dust removal box and the transition box; A dust removal component is installed on the dust removal box to process the exhaust gas; A vibration component, the vibration component is installed on the dust removal box, and is used to shake off the pollutants when there are too many pollutants attached to the dust removal component; A discharge valve is connected to the bottom of the dust removal box.

[0008] On the basis of the above scheme, the primary filter assembly comprises: An air intake housing, the air intake housing is fixedly mounted on the transition box, and the air intake housing is located on the upper part of the pipe making machine body; Wherein, the opening position of the air intake housing is close to the welding position and the grinding position of the pipe making machine body; A primary filter box, the primary filter box is fixedly mounted inside the transition box on one side close to the connecting air box; An air inlet box body, the air inlet box body is fixedly mounted on the primary filter box body; A partition, the partition is fixedly mounted on the air inlet housing, the partition is sealed and fixedly connected to the inner wall of the transition housing, and the position of the partition close to the air inlet housing is inclined; Filter plates, a plurality of filter plates are detachably installed at equal intervals inside the primary filter box; Air inlet slots, a plurality of air inlet slots are provided on one side of the air inlet box body close to the partition plate; Arc plates, two of which are symmetrically fixedly installed on both sides of each air inlet slot; An air inlet portion is mounted on the transition box and is used to assist exhaust gas to enter the air intake housing.

[0009] On the basis of the above solution, the air inlet portion comprises: A shell, wherein the shell is fixedly mounted on the transition box; a first blower, wherein an air outlet of the first blower is in communication with the housing; A first shell, the first shell is fixedly mounted on the inner top wall of the transition box, and the first shell is located between the air intake shell and the partition; A second housing, the second housing being fixedly mounted inside the air intake housing; An exhaust slot is provided at the bottom of the first shell, and the second shell is also provided with the exhaust slot at a position close to the partition; A ventilation pipe is connected to the second shell and the first shell, and both ventilation pipes are connected to the outer shell.

[0010] Based on the above solution, the dust removal component includes: Fixed rings, multiple rows of the fixed rings are fixedly installed at equal distances on the upper part of the dust removal box, and multiple fixed rings are arranged at equal distances in each row; A mounting shell, on each of the fixing rings the mounting shell is detachably mounted; A connecting shell, on each of the mounting shells the connecting shell is fixedly mounted; An exhaust box body, the exhaust box body is fixedly installed inside the dust removal box body; Ventilation slots, a plurality of ventilation slots are provided on the exhaust box body, and the plurality of ventilation slots and the plurality of connecting shells are slidably and sealedly matched; Air outlet slots, each of the connecting shells is provided with a plurality of air outlet slots at equal angles, and the air outlet slots are located inside the ventilation slots; An air suction frame, the air suction frame is fixedly mounted on the dust removal box, and the air suction frame is connected to the exhaust box; a second blower, wherein the air inlet of the second blower is connected to the air suction frame; A vibration damping part, each of the connection shells is equipped with the vibration damping part for stabilizing the connection shells; A filter part is installed at the lower part of each of the vibration damping parts to purify exhaust gas.

[0011] On the basis of the above solution, the vibration damping part comprises: A sliding cylinder, each of the bottoms of the connecting shells is sealed by a first sealing ring and slidably mounted with the sliding cylinder; Sliding rods, a plurality of the sliding rods are fixedly mounted on each sliding cylinder at equal angles, and the plurality of sliding rods are slidably connected to the connecting housing through a second sealing ring; A first spring, each of the sliding rods is fixedly mounted with the first spring, and each of the first springs is fixedly connected to the connecting shell.

[0012] On the basis of the above scheme, the filter unit comprises: A retainer, the retainer is fixedly mounted on the lower part of each sliding cylinder; A dust removal bag, each of the retaining frames is detachably provided with the dust removal bag; The mounting frame is detachably mounted on the lower part of each sliding cylinder, and the dust removal bag is located inside the mounting frame.

[0013] On the basis of the above scheme, the vibration component comprises: A carrier frame, wherein a plurality of the carrier frames are fixedly installed at equal distances inside the dust removal box, and the lower part of each row of the fixing rings is provided with the carrier frame; A driving shaft, wherein each of the supporting frames is rotatably mounted with the driving shaft; A motor, wherein each of the carriers is fixedly mounted with the motor, and an output end of the motor is fixedly connected to the drive shaft; A fixed cylinder, a plurality of the fixed cylinders are fixedly mounted on each of the carriers at equal distances; A driven helical gear, the driven helical gear being rotatably mounted on the lower part of each fixed cylinder; Driving helical gears, a plurality of driving helical gears are fixedly mounted on each of the driving shafts, and the driving helical gears mesh with the driven helical gears; A vibration part is installed on each of the fixed cylinders and is used to apply vibration.

[0014] On the basis of the above scheme, the vibration part includes: A spherical block, wherein the bottom of each mounting frame is fixedly mounted with the spherical block; A support frame, each of the fixed cylinders is slidably mounted with the support frame, and a plurality of the support frames are adapted to a plurality of the spherical blocks; A second spring, each of the support frames is fixedly mounted with the second spring, and the second spring is fixedly connected to the fixing tube; A lower ratchet, wherein each of the fixed cylinders is rotatably mounted with the lower ratchet, and the lower ratchet is fixedly connected to the driven bevel gear; An upper ratchet is fixedly mounted on the bottom of each support frame, and the upper ratchet is meshed with the lower ratchet.

[0015] In addition to the above solutions, it also includes: A vertical rod, on each of the lower ratchet wheels the vertical rod is rotatably mounted; An arc block, each of the vertical poles is slidably mounted with the arc block; A third spring, each of the arc-shaped blocks is fixedly mounted with the third spring, and the third spring is fixedly connected to the vertical rod; A slide groove is provided inside each of the support frames, the slide groove is slidably matched with the arc block, and the end of the slide groove is adapted to the arc block.

[0016] A pipe making method for steel pipe production, comprising the above-mentioned pipe making machine for steel pipe production, further comprising the following steps: S1, forming, prepare the steel strip, start the pipe making machine body, feed the steel strip into the pipe making machine body, and then extrude the steel strip into shape; S2, welding, the formed steel pipe enters the welding position, and then the formed steel pipe is welded; S3, grinding, grinding and polishing the weld position on the steel pipe; S4, put the dust bag on the retaining frame, then put the mounting frame on the dust bag, and fix the position of the mounting frame and the sliding cylinder; S5. Install, hold the handle on the installation shell, insert the connecting shell into the fixing ring, and fix the installation shell and the fixing ring; S6, inhaling air, starting the second blower, the second blower extracts the air in the exhaust box through the suction frame, and then extracts the air in the transition box through the connecting bellows, thereby sucking the exhaust gas; S7, air intake, start the first blower, the first blower blows air into the housing, the air is discharged into the first housing and the second housing through the ventilation pipe, and the exhaust gas is exhausted through the exhaust slot, so that the exhaust gas enters the air intake housing; S8, drive, start the motor, the motor drives the drive shaft to rotate on the carrier, the drive shaft drives the active helical gear to rotate, and the active helical gear drives the driven helical gear to rotate; S9, moving, the driven bevel gear drives the lower ratchet to rotate, and the lower ratchet drives the upper ratchet to drive the support frame to move on the fixed cylinder; S10, sliding, the arc block on the vertical rod is separated from the end of the slide groove; S11, vibration, the lower ratchet is disengaged from the upper ratchet, the first spring is released, and the support frame falls rapidly until the top of the slide groove contacts the arc block, and the arc block impacts the slide groove under the action of the vertical rod; S12, sliding, when the dust bag is vibrated, the sliding cylinder drives the sliding rod to move along the axis direction of the sliding cylinder, and the first spring is compressed to absorb the impact force generated during the vibration process; S13, testing, after the pipe making is completed, test whether the steel pipe is qualified, and then cut it according to the requirements.

[0017] The working principle and beneficial effects of the present invention are: 1. In the present invention, the first blower blows air into the outer shell, and the air entering the outer shell is discharged into the first shell and the second shell through the ventilation pipe. At this time, the air entering the first shell is blown from the inner top wall of the transition box toward the position of the air inlet box, and at the same time, the air entering the second shell is blown from the air inlet position of the air inlet shell to the inclined position on the partition. Since the exhaust of the second shell through the exhaust groove causes the air at the entrance of the air inlet shell to flow, the intersection of the two airflows and the inclined partition can also make the exhaust gas better enter the air inlet shell, thereby increasing the collection range.

[0018] 2. In the present invention, the sliding cylinder is subjected to force to drive the sliding rod to move along the axial direction of the sliding cylinder. At this time, the first spring is compressed to absorb the impact force generated during the vibration process, thereby avoiding the vibration from affecting the sealing between the connecting shell and the ventilation groove. At the same time, through the arrangement of the first sealing ring and the second sealing ring, the sliding cylinder and the sliding rod are also more smoothly matched in the connecting shell.

[0019] 3. In the present invention, when the lower ratchet pushes the upper ratchet to move, the arc block on the vertical rod disengages from the end of the slide groove until the moment when the lower ratchet disengages from the upper ratchet. The support frame falls rapidly until the top of the slide groove contacts the arc block. The arc block impacts the slide groove under the action of the vertical rod, thereby shaking off the impurities on the dust bag. During this process, the dust bag will not be deformed. Among the impurities attached to the dust bag, if there are sharper or harder impurities, the dust bag will not be scratched during the cleaning process, thereby improving the cleaning efficiency and increasing the service life of the dust bag.

[0020] 4. In the present invention, by setting up the primary filter component, the range of exhaust gas absorption is increased and the possibility of exhaust gas diffusion is reduced. By setting up the filter component of the dust removal component, after working for a period of time, the impurities attached to the dust bag can be automatically cleaned without affecting the normal dust removal work. In the dust removal process, when the impurities mixed in the exhaust gas have strong adhesion and hard texture, the dust bag will not be seriously scratched during the cleaning process of the impurities, thereby improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of a three-dimensional structure in cross section in the present invention; Figure 3 It is a cross-sectional structural schematic diagram of the cooperation between the primary filter assembly and the air inlet portion in the present invention; Figure 4It is a structural schematic diagram of the air inlet portion of the present invention; Figure 5 It is a cross-sectional structural schematic diagram of the dust removal component in the present invention; Figure 6 It is a schematic cross-sectional structure diagram of the vibration damping part in the present invention; Figure 7 It is a schematic cross-sectional structural diagram of the vibration component in the present invention; Figure 8 It is a schematic cross-sectional structure diagram of the vibration part in the present invention; Fig. 9 It is a cross-sectional structural schematic diagram of the cooperation between the vibration part, the vertical rod, the arc block and the third spring in the present invention; Fig.10 For the present invention Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0023] The numbers in the figure represent: 1. pipe making machine body; 2. transition box; 3. connecting bellows; 4. dust removal box; 5. discharge valve; 6. air intake shell; 7. primary filter box; 8. air intake box; 9. partition; 10. filter plate; 11. air intake slot; 12. curved plate; 13. shell; 14. first blower; 15. first shell; 16. second shell; 17. exhaust slot; 18. ventilation pipe; 19. fixing ring; 20. mounting shell; 21. connecting shell; 22. exhaust box; 23. ventilation slot; 24. air outlet slot; 25 , suction frame; 26, second blower; 27, sliding cylinder; 28, first sealing ring; 29, sliding rod; 30, second sealing ring; 31, first spring; 32, retaining frame; 33, dust bag; 34, mounting frame; 35, bearing frame; 36, driving shaft; 37, motor; 38, fixing cylinder; 39, driven bevel gear; 40, driving bevel gear; 41, spherical block; 42, supporting frame; 43, second spring; 44, lower ratchet; 45, upper ratchet; 46, vertical rod; 47, arc block; 48, third spring; 49, slide groove. DETAILED DESCRIPTION

[0024] The following will be combined with 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.

[0025] Embodiment 1 like Figures 1 to 10As shown, this embodiment proposes a pipe making machine and a pipe making method for steel pipe production, including a pipe making machine body 1, a transition box 2, a primary filter assembly, a connecting bellows 3, a dust removal box 4, a dust removal assembly, a vibration assembly and a discharge valve 5. The transition box 2 is fixedly installed on the side of the pipe making machine body 1, and a primary filter assembly is fixedly installed inside the transition box 2 for preliminary purification of the exhaust gas generated in the process of producing steel pipes. The primary filter assembly includes an air intake shell 6, a primary filter box 7, an air intake box 8, a partition 9, a filter plate 10, an air intake slot 11, an arc plate 12 and an air intake part. The air intake shell 6 is fixedly installed on the transition box 2. The air intake shell 6 is located at the manufacturing At the upper part of the machine body 1, the primary filter box 7 is fixedly mounted on the side of the transition box 2 close to the connecting wind box 3, the air inlet box 8 is fixedly mounted on the primary filter box 7, the partition 9 is fixedly mounted on the air inlet box 8, the partition 9 is sealed and fixedly connected to the inner wall of the transition box 2, the partition 9 is inclined near the air inlet shell 6, and a plurality of filter plates 10 are detachably mounted at equal distances inside the primary filter box 7, a plurality of air inlet slots 11 are opened on one side of the air inlet box 8 close to the partition 9, and two arc plates 12 are symmetrically fixedly mounted on both sides of each air inlet slot 11, and the air inlet part is mounted on the transition box 2 to assist the exhaust gas to enter the air inlet shell 6.

[0026] Specifically, in the process of producing steel pipes, firstly, the steel strip is prepared, the pipe making machine body 1 is started, the steel strip is fed into the pipe making machine body 1, and then the steel strip is slowly extruded and formed (commonly used forming methods include hot rolling, cold rolling, cold drawing, etc., among which hot rolling is suitable for producing large-diameter and high-strength steel pipes; cold rolling is suitable for producing thin-walled steel pipes; cold drawing is mainly used to produce high-precision, high-strength steel pipes for special environments, and the forming method is not described in detail here), the formed steel pipe enters the welding position, and then the formed steel pipe is welded to connect the steel pipes together to form a continuous The steel pipe is welded and polished, and then the weld position on the steel pipe is tested to see if it is qualified. Then, it is cut according to the requirements to complete the manufacturing of the steel pipe. When welding the steel pipe, a large amount of smoke and dust will be generated, and a large amount of dust will be generated when the weld of the steel pipe is polished after welding. At this time, the dust removal component is started, and the dust removal component extracts the air in the dust removal box 4, thereby extracting the air in the transition box 2 through the connection wind box 3. Since the opening position of the air intake shell 6 is close to the welding position and the polishing position of the pipe making machine body 1, the pipe making machine after welding and polishing is performed. During grinding, the exhaust gas generated will enter the transition box 2 through the air intake housing 6 under the action of the dust removal component. The exhaust gas entering the transition box 2 will enter the air intake box 8 through the air intake slot 11. The cooperation between the air intake part and the partition 9 makes it easier for the exhaust gas to enter the air intake box 8. When the dust removal component fails or is blocked, it may cause the untreated exhaust gas to escape or even flow back at the air intake slot 11. The setting of the arc plate 12 can reduce the possibility of the backflow of impurities mixed in the exhaust gas during the exhaust gas backflow process, thereby improving the safety during use. Then the exhaust gas enters the air intake box 8. The exhaust gas will enter the connecting bellows 3 through the primary filter box 7. At this time, multiple filter plates 10 are first installed in the connecting bellows 3 to perform preliminary filtration on the solid impurities mixed in the exhaust gas passing through the filter plates 10 to reduce the content of solid impurities in the exhaust gas. When the exhaust gas enters the dust removal component, the exhaust gas can be dust-removed. After working for a period of time, the vibration component is started to vibrate the impurities filtered out of the dust removal component to the bottom of the dust removal box 4 without affecting the normal dust removal work. After the pipe making is completed, the pipe making machine body 1 and the dust removal component can be closed, and the discharge valve 5 can be opened to clean up the waste.

[0027] The above, such as Figure 3 , Figure 4As shown, the air inlet part includes an outer shell 13, a first blower 14, a first shell 15, a second shell 16, an exhaust slot 17 and a ventilation pipe 18. The outer shell 13 is fixedly mounted on the transition box 2, and the air outlet of the first blower 14 is connected to the outer shell 13. The first shell 15 is fixedly mounted on the inner top wall of the transition box 2. The first shell 15 is located between the air inlet shell 6 and the partition 9. The second shell 16 is fixedly mounted inside the air inlet shell 6. An exhaust slot 17 is provided at the bottom of the first shell 15, wherein the second shell 16 is also provided with an exhaust slot 17 near the partition 9. The second shell 16 and the first shell 15 are both connected with a ventilation pipe 18, and both ventilation pipes 18 are connected to the outer shell 13.

[0028] Specifically, when collecting and extracting the exhaust gas generated during pipe making, the first blower 14 is started, and the first blower 14 blows air into the outer shell 13, and the air entering the outer shell 13 is discharged into the first shell 15 and the second shell 16 through the ventilation pipe 18. At this time, the air entering the first shell 15 is blown from the inner top wall of the transition box 2 toward the position of the air inlet box 8, and at the same time, the air entering the second shell 16 is blown from the air intake position of the air intake shell 6 toward the inclined position on the partition 9. Due to the exhaust of the second shell 16 through the exhaust slot 17, the air at the entrance of the air intake shell 6 flows, so that the exhaust gas can better enter the air intake shell 6.

[0029] like Figure 2 , Figure 5 , Figure 6 As shown, the connecting bellows 3 is fixedly installed on the side of the transition box 2 away from the pipe making machine body 1, and the dust removal box 4 is fixedly installed on the connecting bellows 3, wherein the connecting bellows 3 is respectively communicated with the dust removal box 4 and the transition box 2, and a dust removal assembly is installed on the dust removal box 4 for treating the exhaust gas. The dust removal assembly includes a fixing ring 19, a mounting shell 20, a connecting shell 21, an exhaust box 22, a ventilation slot 23, an air outlet slot 24, an air suction frame 25, a second blower 26, a vibration damping part and a filtering part. A plurality of rows of fixing rings 19 are fixedly installed at equal distances on the upper part of the dust removal box 4, and a plurality of fixing rings 19 are arranged at equal distances in each row, and a mounting shell 20 can be detachably installed on each fixing ring 19, and each fixing ring 19 is provided with a mounting shell 20. A connecting shell 21 is fixedly installed on each mounting shell 20, and an exhaust box body 22 is fixedly installed inside the dust removal box body 4. A plurality of ventilation slots 23 are provided on the exhaust box body 22, and the plurality of ventilation slots 23 and the plurality of connecting shells 21 are slidably and sealedly matched. A plurality of air outlet slots 24 are provided at equal angles on each connecting shell 21, and the air outlet slots 24 are located inside the ventilation slots 23. A suction frame 25 is fixedly installed on the dust removal box body 4, and the suction frame 25 is connected to the exhaust box body 22, and the air inlet of the second blower 26 is connected to the suction frame 25. A vibration damping part is installed inside each connecting shell 21 for stabilizing the connecting shell 21, and a filter part is installed at the lower part of each vibration damping part for purifying exhaust gas.

[0030] Specifically, when removing dust from the exhaust gas generated during pipe making, first install the connecting shell 21. At this time, hold the handle on the mounting shell 20 and insert the connecting shell 21 with the filter unit installed into the fixing ring 19 until the mounting shell 20 contacts the fixing ring 19. The mounting shell 20 and the fixing ring 19 are preferably connected by a threaded connection. After installing the mounting shell 20, the connecting shell 21 is just sealed with the ventilation slot 23. Then start the second blower 26. The second blower 26 draws air from the exhaust box 22 through the suction frame 25. When the exhaust gas enters the dust removal box 4, it will enter the connecting shell 21 after being filtered by the filter unit. The dust-removed gas entering the connecting shell 21 will enter the ventilation slot 23 through the air outlet slot 24, and then enter the exhaust box 22, and then be discharged.

[0031] The above, such as Figure 5 , Figure 6 As shown, the vibration damping part includes a sliding cylinder 27, a sliding rod 29 and a first spring 31. The bottom of each connecting shell 21 is sealed by a first sealing ring 28 and slidably installed with a sliding cylinder 27. A plurality of sliding rods 29 are fixedly installed at equal angles on each sliding cylinder 27. The plurality of sliding rods 29 are slidably connected to the connecting shell 21 through a second sealing ring 30. A first spring 31 is fixedly installed on each sliding rod 29, and each first spring 31 is fixedly connected to the connecting shell 21.

[0032] Specifically, when cleaning the impurities filtered out of the filter part, vibration will be applied to the filter part. At this time, the filter part will apply axial force to the sliding cylinder 27. At this time, the sliding cylinder 27 is acted upon by the force, driving the sliding rod 29 to move along the axial direction of the sliding cylinder 27. At this time, the first spring 31 is compressed to absorb the impact force generated during the vibration process, thereby avoiding the vibration from affecting the sealing between the connecting shell 21 and the ventilation groove 23. Through the cooperation of the first sealing ring 28 and the second sealing ring 30, the cooperation between the sliding cylinder 27 and the sliding rod 29 in the connecting shell 21 is also more stable.

[0033] The above, such as Figure 5 As shown, the filter unit includes a retaining frame 32, a dust bag 33 and a mounting frame 34. A retaining frame 32 is fixedly installed at the lower part of each sliding cylinder 27. A dust bag 33 can be detachably mounted on each retaining frame 32. A mounting frame 34 can be detachably installed at the lower part of each sliding cylinder 27. The dust bag 33 is located inside the mounting frame 34.

[0034] Specifically, when installing the dust bag 33, first put the dust bag 33 on the retaining frame 32, then tightly fix the opening of the dust bag 33 at the connection between the retaining frame 32 and the sliding cylinder 27, then carefully put the mounting frame 34 on the dust bag 33 to minimize the possibility of the dust bag 33 being scratched by the mounting frame 34, and then fix the mounting frame 34 to the lower part of the sliding cylinder 27. The connection relationship between the mounting frame 34 and the sliding cylinder 27 is preferably connected by bolts, and the opening position of the dust bag 33 must be located at the end of the mounting frame 34 and fit tightly with the dust bag 33.

[0035] like Figure 7 , Figure 8 As shown, the vibration component is installed on the dust removal box 4, and is used to shake off the pollutants when too many pollutants are attached to the dust removal component. The discharge valve 5 is connected to the bottom of the dust removal box 4. The vibration component includes a carrier 35, a drive shaft 36, a motor 37, a fixed cylinder 38, a driven bevel gear 39, a driving bevel gear 40 and a vibration part. A plurality of carriers 35 are fixedly installed at equal distances inside the dust removal box 4, and a carrier 35 is provided at the lower part of each row of fixed rings 19. A drive shaft 36 is rotatably installed inside each carrier 35, and a motor 37 is fixedly installed on each carrier 35. The output end of the motor 37 is fixedly connected to the drive shaft 36. A plurality of fixed cylinders 38 are fixedly installed on each carrier 35 at equal distances, and a driven bevel gear 39 is rotatably installed at the lower part of each fixed cylinder 38. A plurality of driving bevel gears 40 are fixedly installed on each drive shaft 36, and the driving bevel gear 40 is meshed with the driven bevel gear 39. A vibration part is installed on each fixed cylinder 38 for applying vibration.

[0036] Specifically, after working for a period of time, it is necessary to clean the impurities on the dust bag 33. At this time, the motor 37 is started, and the motor 37 drives the drive shaft 36 to rotate on the carrier frame 35. The drive shaft 36 drives the active bevel gear 40 to rotate, and the active bevel gear 40 drives the driven bevel gear 39 to rotate. The driven bevel gear 39 can drive the vibration part in the fixed cylinder 38 to work, thereby applying vibration to the mounting frame 34, and the impurities on the dust bag 33 can be cleaned off, and the normal dust removal is not affected during the cleaning process.

[0037] The above, such as Figure 8 , Fig. 9As shown, the vibration part includes a spherical block 41, a support frame 42, a second spring 43, a lower ratchet 44 and an upper ratchet 45. A spherical block 41 is fixedly installed at the bottom of each mounting frame 34, a support frame 42 is slidably installed on each fixed cylinder 38, multiple support frames 42 are adapted to multiple spherical blocks 41, a second spring 43 is fixedly installed on each support frame 42, and the second spring 43 is fixedly connected to the fixed cylinder 38. A lower ratchet 44 is rotatably installed inside each fixed cylinder 38, and the lower ratchet 44 is fixedly connected to the driven bevel gear 39. An upper ratchet 45 is fixedly installed at the bottom of each support frame 42, and the upper ratchet 45 meshes with the lower ratchet 44.

[0038] Specifically, after the connecting shell 21 is installed, the spherical block 41 at the bottom of the mounting frame 34 will enter the supporting frame 42, and the two will fit tightly. With the rotation of the driven bevel gear 39, the lower ratchet 44 can be driven to rotate, and the rotation of the lower ratchet 44 drives the upper ratchet 45 to drive the supporting frame 42 to slide on the fixed cylinder 38, and the supporting frame 42 moves along the axial position of the upper ratchet 45. When it moves to a certain position, due to the compression of the first spring 31, at the moment when the lower ratchet 44 and the upper ratchet 45 are disengaged, the first spring 31 is instantly released, thereby pushing the supporting frame 42 to move through the spherical block 41, causing a certain impact, and through the action of the second spring 43, the dust bag 33 is shaken, thereby shaking off the impurities on the dust bag 33.

[0039] The above, such as Figure 8 , Fig. 9 As shown, it also includes a vertical rod 46, an arc block 47, a third spring 48 and a slide groove 49. A vertical rod 46 is rotatably installed on each lower ratchet 44, an arc block 47 is slidably installed on each vertical rod 46, a third spring 48 is fixedly installed on each arc block 47, and the third spring 48 is fixedly connected to the vertical rod 46. A slide groove 49 is opened inside each support frame 42, and the slide groove 49 is slidably matched with the arc block 47, and the end of the slide groove 49 is adapted to the arc block 47.

[0040] Specifically, when the lower ratchet 44 pushes the upper ratchet 45 to move, the arc block 47 on the vertical rod 46 disengages from the end of the slide groove 49 until the moment when the lower ratchet 44 and the upper ratchet 45 are disengaged. The support frame 42 falls rapidly until the top of the slide groove 49 contacts the arc block 47. The arc block 47 generates an impact with the slide groove 49 under the action of the vertical rod 46, which can shake off the impurities on the dust bag 33. Due to the provision of the third spring 48, the possibility of damage to the vertical rod 46 is reduced, thereby increasing the service life.

[0041] To sum up, in the process of producing steel pipes, first prepare the steel strip, start the pipe making machine body 1, feed the steel strip into the pipe making machine body 1, and then slowly extrude the steel strip into shape. The formed steel pipe enters the welding position, and then the formed steel pipe is welded to connect the steel pipes together to form a continuous steel pipe, and the weld position on the steel pipe is ground and polished. When welding the steel pipe, a large amount of smoke will be generated, and a large amount of waste gas will be generated when grinding the steel pipe weld after welding. At this time, the waste gas needs to be treated.

[0042] First, the dust bag 33 is mounted on the retaining frame 32, and then the opening of the dust bag 33 is tightly fixed to the connection between the retaining frame 32 and the sliding cylinder 27. Then the mounting frame 34 is carefully mounted on the dust bag 33 to minimize the possibility of the dust bag 33 being scratched by the mounting frame 34. Then the mounting frame 34 is fixed to the lower part of the sliding cylinder 27. The connection relationship between the mounting frame 34 and the sliding cylinder 27 is preferably connected by bolts, and the opening position of the dust bag 33 must be located at the end of the mounting frame 34 and fits tightly with the dust bag 33. Then install the connecting shell 21, hold the handle on the mounting shell 20, and insert the connecting shell 21 into the fixing ring 19 until the mounting shell 2 0 is in contact with the fixing ring 19, and the mounting shell 20 and the fixing ring 19 are preferably connected by threaded connection. After the mounting shell 20 is installed, the connecting shell 21 is just sealed and connected with the ventilation groove 23, and the spherical block 41 at the bottom of the mounting frame 34 is also tightly connected with the supporting frame 42. Then the second blower 26 is started, and the second blower 26 extracts the air in the exhaust box body 22 through the suction frame 25, thereby extracting the air in the transition box body 2 through the connecting bellows 3. Since the opening position of the air intake shell 6 is close to the welding position and the grinding position of the pipe making machine body 1, when the formed pipe making machine is welded and ground, the exhaust gas generated will enter the transition box body 2 through the air intake shell 6 under the action of the second blower 26.

[0043] The exhaust gas entering the transition box 2 will enter the air inlet box 8 through the setting of the air inlet slot 11. At this time, the first blower 14 is started, and the first blower 14 blows air into the outer shell 13, and the air entering the outer shell 13 is discharged into the first shell 15 and the second shell 16 through the ventilation pipe 18. At this time, the air entering the first shell 15 is blown from the inner top wall of the transition box 2 toward the position of the air inlet box 8, and at the same time, the air entering the second shell 16 will be blown from the air intake position of the air intake shell 6 toward the inclined position on the partition 9. Due to the exhaust of the second shell 16 through the exhaust slot 17, the air at the entrance of the air intake shell 6 flows, so that the exhaust gas can better enter the air intake shell 6 and then enter the air inlet box 8. When the dust bag 33 fails or is blocked, it may cause untreated exhaust gas to escape or even flow back at the air inlet slot 11. The setting of the arc plate 12 can reduce the possibility of impurities mixed in the exhaust gas flowing back during the exhaust gas backflow, thereby improving safety during use.

[0044] After working for a period of time, it is necessary to clean the impurities on the dust bag 33. At this time, the motor 37 is started, and the motor 37 drives the driving shaft 36 to rotate on the carrier 35. The driving shaft 36 drives the active bevel gear 40 to rotate, and the active bevel gear 40 drives the driven bevel gear 39 to rotate. With the rotation of the driven bevel gear 39, the lower ratchet 44 can be driven to rotate. The rotation of the lower ratchet 44 drives the upper ratchet 45 to drive the support frame 42 to move on the fixed cylinder 38. The arc block 47 on the vertical rod 46 is separated from the end of the slide groove 49. When it moves to a certain position, the first spring 31 is compressed, and the lower ratchet 4 4 is disengaged from the upper ratchet 45, the first spring 31 is instantly released, and the support frame 42 falls rapidly until the top of the slide groove 49 contacts the arc block 47. The arc block 47 impacts the slide groove 49 under the action of the vertical rod 46, so that the impurities on the dust bag 33 can be shaken off. Due to the setting of the third spring 48, the possibility of damage to the vertical rod 46 is reduced, and the service life is increased. The dust bag 33 is shaken by the action of the second spring 43, thereby further shaking off the impurities on the dust bag 33. These impurities are shaken off to the bottom of the dust removal box 4 and do not affect the normal dust removal.

[0045] When the dust bag 33 is vibrated, the sliding cylinder 27 is acted upon by the axial force, driving the sliding rod 29 to move along the axial direction of the sliding cylinder 27. At this time, the first spring 31 is compressed to absorb the impact force generated during the vibration process, thereby avoiding the vibration from affecting the sealing between the connecting shell 21 and the ventilation groove 23. Through the cooperation of the first sealing ring 28 and the second sealing ring 30, the cooperation between the sliding cylinder 27 and the sliding rod 29 in the connecting shell 21 is also more stable. After the pipe making is completed, the first blower 14, the second blower 26 and the motor 37 can be turned off, and then the steel pipe can be checked for qualification, and then it can be cut according to the requirements, and then the discharge valve 5 can be opened to clean up the waste.

[0046] Embodiment 2 On the basis of the first embodiment, this embodiment further discloses a pipe making method for steel pipe production, using the above-mentioned pipe making machine for steel pipe production, comprising the following steps: The first step is forming. The steel strip is prepared, the pipe making machine body 1 is started, the steel strip is fed into the pipe making machine body 1, and then the steel strip is slowly extruded into shape.

[0047] The second step is welding. The formed steel pipe enters the welding position, and then the formed steel pipe is welded to connect the steel pipes together to form a continuous steel pipe.

[0048] The third step is grinding, grinding and polishing the weld positions on the steel pipe.

[0049] The fourth step is to put on the dust bag. Put the dust bag 33 on the retaining frame 32, and then tightly fix the opening of the dust bag 33 at the connection between the retaining frame 32 and the sliding cylinder 27. Then carefully put the mounting frame 34 on the dust bag 33 to minimize the possibility of the dust bag 33 being scratched by the mounting frame 34. Then fix the mounting frame 34 to the lower part of the sliding cylinder 27. The connection relationship between the mounting frame 34 and the sliding cylinder 27 is preferably connected by bolts, and the opening position of the dust bag 33 must be located at the end of the mounting frame 34 and fit tightly with the dust bag 33.

[0050] The fifth step is installation. Hold the handle on the mounting shell 20 and insert the connecting shell 21 into the fixing ring 19 until the mounting shell 20 contacts the fixing ring 19. The mounting shell 20 and the fixing ring 19 are preferably connected by threaded connection. After the mounting shell 20 is installed, the connecting shell 21 is sealed with the ventilation groove 23, and the spherical block 41 at the bottom of the mounting frame 34 is also tightly connected with the support frame 42.

[0051] The sixth step is to inhale and start the second blower 26. The second blower 26 draws air from the exhaust box 22 through the suction frame 25, and then draws air from the transition box 2 through the connecting bellows 3. Since the opening position of the air intake shell 6 is close to the welding position and the grinding position of the pipe making machine body 1, when the formed pipe making machine is welded and ground, the exhaust gas generated will enter the transition box 2 through the air intake shell 6 under the action of the second blower 26.

[0052] The seventh step is air intake. The exhaust gas entering the transition box 2 will enter the air intake box 8 through the air intake slot 11. At this time, the first blower 14 is started, and the first blower 14 blows air into the outer shell 13. The air entering the outer shell 13 is discharged into the first shell 15 and the second shell 16 through the ventilation pipe 18. At this time, the air entering the first shell 15 is blown from the inner top wall of the transition box 2 toward the position of the air intake box 8. At the same time, the air entering the second shell 16 is blown from the air intake position of the air intake shell 6 to the inclined position on the partition 9. Due to the exhaust of the second shell 16 through the exhaust slot 17, the air at the entrance of the air intake shell 6 flows, so that the exhaust gas can better enter the air intake shell 6 and then enter the air intake box 8.

[0053] The eighth step is driving, starting the motor 37, the motor 37 drives the driving shaft 36 to rotate on the carrier 35, the driving shaft 36 drives the active bevel gear 40 to rotate, and the active bevel gear 40 drives the driven bevel gear 39 to rotate.

[0054] The ninth step is movement. With the rotation of the driven bevel gear 39 , the lower ratchet 44 can be driven to rotate. The rotation of the lower ratchet 44 drives the upper ratchet 45 to drive the support frame 42 to move on the fixed cylinder 38 .

[0055] The tenth step is sliding. The arc block 47 on the vertical rod 46 is separated from the end of the slide groove 49. When it moves to a certain position, the first spring 31 is compressed.

[0056] The eleventh step is vibration. At the moment when the lower ratchet 44 and the upper ratchet 45 are disengaged, the first spring 31 is released instantly, and the support frame 42 falls rapidly until the top of the slide 49 contacts the arc block 47. The arc block 47 impacts the slide 49 under the action of the vertical rod 46, and the impurities on the dust bag 33 can be vibrated off. Due to the setting of the third spring 48, the possibility of damage to the vertical rod 46 is reduced, and the service life is increased. Through the action of the second spring 43, the dust bag 33 is shaken, thereby further vibrating the impurities on the dust bag 33. These impurities are vibrated to the bottom of the dust removal box 4 and do not affect the normal dust removal.

[0057] Step 12, sliding. When the dust bag 33 is vibrated, the sliding cylinder 27 is acted upon by the axial force, driving the sliding rod 29 to move along the axial direction of the sliding cylinder 27. At this time, the first spring 31 is compressed to absorb the impact force generated during the vibration process, thereby preventing the vibration from affecting the sealing between the connecting shell 21 and the ventilation groove 23. Through the cooperation of the first sealing ring 28 and the second sealing ring 30, the cooperation between the sliding cylinder 27 and the sliding rod 29 in the connecting shell 21 is also more stable.

[0058] The thirteenth step is testing. After the pipe making is completed, the first blower 14, the second blower 26 and the motor 37 can be turned off, and then the steel pipe is tested to see if it is qualified. Then, it can be cut according to the requirements, and then the discharge valve 5 is opened to clean up the waste.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipe making machine for producing steel pipes, comprising a pipe making machine body (1), It is characterized in that Also includes: A transition box (2), the transition box (2) being fixedly mounted on a side of the pipe making machine body (1); A primary filter assembly, the primary filter assembly being fixedly installed inside the transition box (2) and used for preliminary purification of waste gas generated during the production of steel pipes; A connecting bellows (3), the connecting bellows (3) being fixedly mounted on a side of the transition box (2) away from the pipe making machine body (1); A dust removal box (4), the dust removal box (4) being fixedly mounted on the connecting bellows (3); Wherein, the connecting bellows (3) are respectively connected to the dust removal box (4) and the transition box (2); A dust removal component, the dust removal box (4) is equipped with the dust removal component, and is used to process the exhaust gas; A vibration component, the vibration component being mounted on the dust removal box (4) and being used to shake off pollutants when there are too many pollutants attached to the dust removal component; A discharge valve (5), wherein the discharge valve (5) is connected to the bottom of the dust removal box (4).

2. A pipe making machine for steel pipe production according to claim 1, It is characterized in that The primary filter assembly comprises: An air intake housing (6), the air intake housing (6) being fixedly mounted on the transition box (2), the air intake housing (6) being located on the upper part of the pipe making machine body (1); A primary filter box (7), the primary filter box (7) being fixedly mounted inside the transition box (2) on a side close to the connecting bellows (3); An air inlet box (8), the air inlet box (8) being fixedly mounted on the primary filter box (7); a partition (9), the partition (9) being fixedly mounted on the air inlet housing (8), the partition (9) being sealed and fixedly connected to the inner wall of the transition housing (2), and the partition (9) being arranged in an inclined shape at a position close to the air inlet housing (6); A filter plate (10), wherein a plurality of the filter plates (10) are detachably mounted at equal intervals inside the primary filter housing (7); Air inlet slots (11), a plurality of the air inlet slots (11) being provided on a side of the air inlet box (8) close to the partition plate (9); Arc plates (12), two of the arc plates (12) being symmetrically fixedly mounted on both sides of each of the air inlet slots (11); An air inlet portion, the air inlet portion being mounted on the transition box (2) and being used to assist exhaust gas in entering the air inlet housing (6).

3. A pipe making machine for steel pipe production according to claim 2, It is characterized in that The air inlet portion comprises: An outer shell (13), the outer shell (13) being fixedly mounted on the transition box (2); a first blower (14), wherein an air outlet of the first blower (14) is in communication with the housing (13); A first shell (15), the first shell (15) being fixedly mounted on the inner top wall of the transition box (2), the first shell (15) being located between the air intake shell (6) and the partition plate (9); A second shell (16), the second shell (16) being fixedly mounted inside the air intake shell (6); An exhaust slot (17), wherein the exhaust slot (17) is provided at the bottom of the first shell (15), and wherein the exhaust slot (17) is also provided at a position of the second shell (16) close to the partition (9); A ventilation pipe (18), the second shell (16) and the first shell (15) are both connected with the ventilation pipe (18), and the two ventilation pipes (18) are both connected with the outer shell (13).

4. A pipe making machine for steel pipe production according to claim 3, It is characterized in that The dust removal component comprises: Fixed rings (19), wherein a plurality of rows of the fixed rings (19) are fixedly mounted at equal distances on the upper portion of the dust removal box (4), and a plurality of the fixed rings (19) are arranged at equal distances in each row; A mounting shell (20), the mounting shell (20) being detachably mounted on each of the fixing rings (19); A connecting shell (21), the connecting shell (21) being fixedly mounted on each of the mounting shells (20); An exhaust box (22), the exhaust box (22) being fixedly installed inside the dust removal box (4); Ventilation slots (23), wherein a plurality of the ventilation slots (23) are provided on the exhaust box body (22), and the plurality of ventilation slots (23) and the plurality of connection shells (21) are slidably and sealingly matched with each other; Air outlet slots (24), each of the connecting shells (21) being provided with a plurality of the air outlet slots (24) at equal angles, and the air outlet slots (24) being located inside the ventilation slots (23); An air suction frame (25), the air suction frame (25) being fixedly mounted on the dust removal box (4), the air suction frame (25) being in communication with the exhaust box (22); a second blower (26), wherein an air inlet of the second blower (26) is in communication with the air suction frame (25); A vibration damping part, wherein each of the connection shells (21) is provided with the vibration damping part inside, and is used to stabilize the connection shell (21); A filter part is installed at the lower part of each of the vibration damping parts to purify exhaust gas.

5. A pipe making machine for steel pipe production according to claim 4, It is characterized in that The vibration damping part comprises: A sliding cylinder (27), wherein the bottom of each connecting housing (21) is sealed by a first sealing ring (28) and the sliding cylinder (27) is slidably mounted thereon; Sliding rods (29), a plurality of the sliding rods (29) being fixedly mounted at equal angles on each of the sliding cylinders (27), and the plurality of sliding rods (29) are all slidably connected to the connecting housing (21) via a second sealing ring (30); A first spring (31), wherein each of the sliding rods (29) is fixedly mounted with the first spring (31), and each of the first springs (31) is fixedly connected to the connecting housing (21).

6. A pipe making machine for steel pipe production according to claim 5, It is characterized in that The filter unit comprises: A retaining frame (32), wherein the retaining frame (32) is fixedly mounted on the lower portion of each sliding cylinder (27); A dust removal bag (33), each of the retaining frames (32) being detachably sleeved with the dust removal bag (33); A mounting frame (34) is detachably mounted on the lower portion of each sliding cylinder (27), and the dust removal bag (33) is located inside the mounting frame (34).

7. A pipe making machine for steel pipe production according to claim 6, It is characterized in that The vibration assembly comprises: A carrier frame (35), wherein a plurality of the carrier frames (35) are fixedly installed at equal intervals inside the dust removal box (4), and the lower part of each row of the fixing rings (19) is provided with the carrier frame (35); A driving shaft (36), wherein each of the supporting frames (35) is rotatably mounted with the driving shaft (36); A motor (37), wherein each of the carrier frames (35) is fixedly mounted with the motor (37), and an output end of the motor (37) is fixedly connected to the drive shaft (36); A fixed cylinder (38), with a plurality of the fixed cylinders (38) being fixedly mounted at equal distances on each of the supporting frames (35); A driven bevel gear (39), the driven bevel gear (39) being rotatably mounted on the lower portion of each of the fixed cylinders (38); A driving bevel gear (40), wherein a plurality of the driving bevel gears (40) are fixedly mounted on each of the driving shafts (36), and the driving bevel gears (40) mesh with the driven bevel gears (39); A vibration part is installed on each of the fixed cylinders (38) and is used to apply vibration.

8. A pipe making machine for steel pipe production according to claim 7, It is characterized in that The vibration unit comprises: A spherical block (41), the spherical block (41) being fixedly mounted on the bottom of each mounting frame (34); A support frame (42), each of the fixed cylinders (38) being slidably mounted with the support frame (42), and a plurality of the support frames (42) being adapted to fit a plurality of the spherical blocks (41); a second spring (43), wherein each of the support frames (42) is fixedly mounted with the second spring (43), and the second spring (43) is fixedly connected to the fixing cylinder (38); A lower ratchet (44), wherein each of the fixed cylinders (38) is rotatably mounted with the lower ratchet (44), and the lower ratchet (44) is fixedly connected to the driven bevel gear (39); An upper ratchet (45), wherein the bottom of each support frame (42) is fixedly mounted with the upper ratchet (45), and the upper ratchet (45) is meshed with the lower ratchet (44).

9. A pipe making machine for steel pipe production according to claim 8, It is characterized in that Also includes: A vertical rod (46), on each of the lower ratchet wheels (44) being rotatably mounted the vertical rod (46); An arc-shaped block (47), each of the vertical rods (46) being slidably mounted with the arc-shaped block (47); a third spring (48), wherein each of the arc-shaped blocks (47) is fixedly mounted with the third spring (48), and the third spring (48) is fixedly connected to the vertical rod (46); A slide groove (49), wherein each of the support frames (42) is provided with the slide groove (49), the slide groove (49) is slidably matched with the arc-shaped block (47), and an end of the slide groove (49) is adapted to fit the arc-shaped block (47).

10. A method for producing a steel pipe, using the pipe making machine for producing a steel pipe according to claim 9, It is characterized in that The following steps are involved: S1, forming, preparing the steel strip, starting the tube making machine body (1), feeding the steel strip into the tube making machine body (1), and then extruding the steel strip into shape; S2, welding, the formed steel pipe enters the welding position, and then the formed steel pipe is welded; S3, grinding, grinding and polishing the weld position on the steel pipe; S4, putting on the bag, putting the dust bag (33) on the retaining frame (32), then putting the mounting frame (34) on the dust bag (33), and fixing the position of the mounting frame (34) and the sliding cylinder (27); S5, installation, holding the handle on the installation shell (20), inserting the connecting shell (21) into the fixing ring (19), and fixing the installation shell (20) and the fixing ring (19); S6, suction, start the second blower (26), the second blower (26) extracts air from the exhaust box (22) through the suction frame (25), and then extracts air from the transition box (2) through the connecting wind box (3), thereby sucking out the exhaust gas; S7, air intake, starting the first blower (14), the first blower (14) blowing air into the housing (13), the air is discharged into the first housing (15) and the second housing (16) through the ventilation pipe (18), and the exhaust gas is exhausted through the exhaust slot (17), so that the exhaust gas enters the air intake housing (6); S8, driving, starting the motor (37), the motor (37) drives the driving shaft (36) to rotate on the carrier (35), the driving shaft (36) drives the driving bevel gear (40) to rotate, and the driving bevel gear (40) drives the driven bevel gear (39) to rotate; S9, moving, the driven bevel gear (39) drives the lower ratchet (44) to rotate, and the lower ratchet (44) drives the upper ratchet (45) to drive the support frame (42) to move on the fixed cylinder (38); S10, sliding, the arc block (47) on the vertical rod (46) is separated from the end of the slide groove (49); S11, vibration, the lower ratchet (44) is disengaged from the upper ratchet (45), the first spring (31) is released, and the support frame (42) falls rapidly until the top of the slide groove (49) contacts the arc block (47), and the arc block (47) impacts the slide groove (49) under the action of the vertical rod (46); S12, sliding, when the dust bag (33) is vibrated, the sliding cylinder (27) drives the sliding rod (29) to move along the axial direction of the sliding cylinder (27), and the first spring (31) is compressed to absorb the impact force generated during the vibration process; S13, testing, after the pipe making is completed, test whether the steel pipe is qualified, and then cut it according to the requirements.

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