A straightening machine for a straight seam welded pipe

Abstract

The present application relates to the technical field of straightening machine, and particularly relates to a straightening machine for straight seam welded pipe, which comprises an inlet roller way and an outlet roller way; a multi-axis straightening mechanism, which is arranged at the inner side of the inlet roller way and the outlet roller way, and can perform multi-axis synchronous straightening treatment on the straight seam welded pipe; by arranging the multi-axis straightening mechanism, a water penetrating mechanism and a linkage mechanism, the straightening precision decline and the excessive wear of the roller surface caused by the sharp temperature rise are effectively avoided; by arranging a strong cleaning mechanism, the cleaning capacity of the stubborn oxide scale and debris on the roller surface is significantly improved; by arranging a strong washing trigger mechanism, the trigger position deviation caused by the length fluctuation of the pipe material is completely eliminated; by arranging a reinforcing member toothed plate, a sliding supercharging pipe fitting, an inclined sliding chute, a pull rope, a winding column, a reinforcing member long rod, a reinforcing member synchronous plate, a synchronous shaft and a reinforcing member gear, it is ensured that the stubborn oxide scale and metal debris adhered to the surface of the straightening shaft roller member are completely washed off.

Description

Technical Field

[0001] This invention relates to the technical field of straightening machines, and more particularly to a straightening machine for straight seam welded pipes. Background Technology

[0002] During the straightening process of straight seam welded pipe, intense extrusion and friction occur between the straightening roller and the surface of the welded pipe, causing the temperature of the roller surface and the pipe to rise sharply. If not cooled in time, it will not only affect the straightening accuracy, but may also cause excessive wear of the roller surface or even damage to the surface of the welded pipe.

[0003] Patent publication number CN121847629A discloses a quick mold changing device for a stainless steel bar straightening equipment, classified as B21D37 / 10. While the steel bar body is rotating and feeding, it is first sprayed with high-pressure water. The cleaning plate pushes the iron oxide scale and impurities into the collection box for collection, reducing the influence of iron oxide scale and impurities on the outside of the steel bar body. This allows the steel bar body to be evenly stressed during straightening, reducing straightening damage caused by local stress concentration and improving the subsequent straightening accuracy.

[0004] If impurities such as iron oxide scale and metal shavings that fall off during the straightening process adhere to the surface of the straightening rollers, they will further affect the straightening quality. Therefore, cooling the welded pipe and roller surface during the straightening process and cleaning the roller surface after straightening are important steps to ensure straightening quality and equipment life.

[0005] The existing cleaning devices of straightening machines mostly use independent water pumps to provide high-pressure water flow. Their start-up and shutdown depend on operation or independent electrical control systems, which can easily lead to problems such as untimely cleaning or waste of water resources. In addition, conventional atmospheric pressure water spraying cooling cannot effectively remove stubborn impurities such as iron oxide scale adhering to the roller surface. Summary of the Invention

[0006] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0007] In view of the problems existing in the current straightening machine for straight seam welded pipes, the present invention is proposed.

[0008] Therefore, the purpose of this invention is to provide a straightening machine for straight seam welded pipes, which has the following functions: multi-axis straightening, water cooling, switching between water spraying and jetting, and assistance and enhancement of jetting force.

[0009] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a conveying mechanism, comprising an inlet roller conveyor and an outlet roller conveyor; characterized in that:

[0010] A multi-axis straightening mechanism is provided, which is located inside the inlet roller conveyor and the outlet roller conveyor. The multi-axis straightening mechanism is capable of performing multi-axis synchronous straightening of straight seam welded pipes.

[0011] A water-cooling mechanism is provided on top of the multi-axis straightening mechanism. The water-cooling mechanism can provide atmospheric pressure water cooling to the surface of the straight seam welded pipe and the roller surface during straightening.

[0012] A linkage mechanism is provided on the multi-axis straightening mechanism. The linkage mechanism can take force from the driving force of the multi-axis straightening mechanism and drive the water-passing mechanism to generate a continuous water flow. Water cooling is used simultaneously when the straightening operation is started.

[0013] A high-pressure cleaning mechanism is installed inside the water-passing mechanism. The high-pressure cleaning mechanism can assist the water-passing mechanism in switching the water path effect and further convert the normal pressure water spray into a high pressure water-air mixed flushing jet.

[0014] A high-pressure water-air mixing flushing mechanism is installed inside the high-pressure cleaning mechanism. The high-pressure water-air mixing flushing mechanism can trigger the high-pressure cleaning mechanism to further assist in the control of the cleaning work, so that the straight seam welded pipe can be completely separated from the straightening machine and the high-pressure water-air mixing flushing can be automatically started.

[0015] As a preferred embodiment of the straightening machine for straight seam welded pipes according to the present invention, the multi-axis straightening mechanism includes a straightening group, with motor bases fixedly connected to each of the four corners of the straightening group. A servo motor is fixedly connected to the top of the motor base, and a universal joint is fixedly connected to the output end of the servo motor. A shaft rotating rod is fixedly connected to the end of the universal joint away from the servo motor. Three shaft rotating rods are provided and evenly distributed, and the three shaft rotating rods are connected by a transmission belt. The straightening group includes a straightening base, with six straightening bases provided and horizontally fixed. A top shaft support frame is fixedly connected to the top of the straightening base. Straightening shaft rollers are movably connected to the bottom of the top shaft support frame and the top of the straightening base through a rotating shaft. One end of the straightening shaft roller is fixedly connected to the shaft rotating rod. A drain groove is opened on the top of the top shaft support frame, and a drain pipe is fixedly connected to the top of the top shaft support frame at the position corresponding to the drain groove.

[0016] In a preferred embodiment of the straightening machine for the straight seam welded pipe of the present invention, the water-passing mechanism includes a unit back plate, which is disposed at the back end of the motor base. A left unit support plate is fixedly connected to the left side of the back end of the inner wall of the unit back plate. A water tank is fixedly connected to the back end of the unit back plate. A water supply pipe is fixedly connected to the top of the front end of the water tank. The front end of the water supply pipe penetrates the back end of the inner wall of the unit back plate. A connecting water pipe is fixedly connected to the right side of the front end of the left unit support plate. The top of the connecting water pipe is fixedly connected to the end of the water supply pipe away from the water tank. A cooling water pipe is fixedly connected to the right side of the connecting water pipe. A cooling water pipe opening is provided at the bottom of the cooling water pipe. Six cooling water pipe openings are provided and are respectively fixedly connected to the top of the leakage pipe.

[0017] In a preferred embodiment of the straightening machine for the straight seam welded pipe of the present invention, the linkage mechanism includes a linkage rod, a linkage shaft is movably connected to the left side of the linkage rod via a rotating shaft, the back end of the linkage shaft is fixedly connected to the front end of the left unit support plate, the linkage rod and the output end of the servo motor are connected via a transmission belt, a first sector gear is fixedly connected to the right side of the linkage rod, a second sector gear is movably connected to the front end of the left unit support plate via a rotating shaft, the left side of the second sector gear and the back end of the first sector gear are meshed, a turbine blade is movably connected to the inner cavity of the connecting water pipe via a rotating shaft, and the turbine blade and the second sector gear are connected via a transmission belt.

[0018] As a preferred embodiment of the straightening machine for the straight seam welded pipe of the present invention, the strong cleaning mechanism includes a strong cleaning pipe, which is disposed at the top of the cooling water pipe. A high-pressure gas connection fitting is fixedly connected to the top of the strong cleaning pipe, and a strong cleaning pipe inlet is fixedly connected to the bottom of the strong cleaning pipe. Six strong cleaning pipe inlets are provided at positions corresponding to the leak pipe and the cooling water pipe inlet. The bottom of the strong cleaning pipe inlet extends into the inner cavity of the cooling water pipe inlet. A connecting inner pipe is movably connected to the inner cavity of the strong cleaning pipe. A connecting groove is provided in the inner cavity of the connecting inner pipe at the position corresponding to the connection of the high-pressure gas connection fitting, the strong cleaning pipe inlet, the cooling water pipe, and the cooling water pipe inlet.

[0019] In a preferred embodiment of the straightening machine for the straight seam welded pipe of the present invention, the strong washing triggering mechanism includes an inner tube connecting rod, the left side of which is fixedly connected to the right side of the inner tube connecting rod, a connecting rod extension rod fixedly connected to the right side of the inner tube connecting rod, a trigger gear fixedly connected to the right side of the connecting rod extension rod, an outlet sliding support fixedly connected to the left side of the outlet roller conveyor, a sliding pipe fixedly connected to the top of the outlet sliding support, a trigger limiting fixing block fixedly connected to the right side of the bottom of the sliding pipe, a trigger plate slidably connected to the right side of the trigger limiting fixing block, a reset spring assembly fixedly connected to the top of the trigger plate, the top of the reset spring assembly fixedly connected to the bottom of the sliding pipe, a first trigger rod and a second trigger rod fixedly connected to both the front end and the back end of the trigger plate, the first trigger rod being disposed at the back end of the second trigger rod, a trigger tooth plate fixedly connected to the top of the front end of the first trigger rod, and the front end of the trigger tooth plate meshing with the back end of the trigger gear.

[0020] In a preferred embodiment of the straightening machine for the straight seam welded pipe of the present invention: a reinforcing toothed plate is fixedly connected to the top of the back end of the second trigger rod; a sliding pressure boosting pipe is slidably connected to the bottom of the inner cavity of the strong washing pipe inlet; an oblique groove is formed on the surface of the sliding pressure boosting pipe; a pull rope is fixedly connected to the surface of the sliding pressure boosting pipe; a winding column is fixedly connected to the end of the pull rope away from the sliding pressure boosting pipe, penetrating the surface of the cooling pipe inlet; the top of the winding column and the top of the inner wall of the unit back plate are movably connected by a rotating shaft; a reinforcing long rod is fixedly connected to the right side of the winding column; a reinforcing synchronous plate is fixedly connected to the top of the inner wall of the unit back plate and corresponding to the right side of the reinforcing long rod; a synchronous shaft is movably connected to the left side of the reinforcing synchronous plate and corresponding to the position of the reinforcing long rod by a rotating shaft; the left side of the synchronous shaft and the right side of the reinforcing long rod are fixedly connected; a reinforcing gear is movably connected to the bottom of the left side of the reinforcing synchronous plate by a rotating shaft; the reinforcing gear and the synchronous shaft are connected by a transmission belt; and the front end of the reinforcing gear and the back end of the reinforcing toothed plate are meshed.

[0021] As a preferred embodiment of the straightening machine for the straight seam welded pipe of the present invention, wherein: the inner cavity of the strong washing pipe inlet and the oblique sliding groove on the surface of the sliding pressure boosting pipe fitting are provided with a matching sliding groove, and the inner cavity diameter of the strong washing pipe inlet is larger than the inner cavity diameter of the sliding pressure boosting pipe fitting.

[0022] As a preferred embodiment of the straightening machine for the straight seam welded pipe of the present invention, wherein: the surface diameter of the strong washing pipe inlet is smaller than the diameter of the inner cavity of the cooling pipe inlet, and the strong washing pipe inlet is used in conjunction with the cooling pipe inlet.

[0023] As a preferred embodiment of the straightening machine for the straight seam welded pipe of the present invention, the inner cavity of the straightening base is provided with a collection groove, and the top of the straightening base and the position corresponding to the straightening shaft roller are provided with a collection port.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. This invention, by setting up a multi-axis straightening mechanism, a water-passing mechanism, and a linkage mechanism, utilizes the output end of a servo motor to simultaneously drive the straightening shaft rollers and the linkage rod. Through the meshing and reversing of the first and second sector gears and the transmission belt, the turbine blades are driven to rotate continuously within the connected water pipe, achieving synchronous driving of the straightening operation and cooling water supply. This abandons the traditional mode of setting up a separate water pump motor for the straightening machine. Water cooling is activated simultaneously with the start of the straightening operation, which reduces equipment manufacturing costs and energy consumption, and ensures that the straightening rollers and welded pipe surfaces are always kept in a cooled state during the straightening process, effectively avoiding the decrease in straightening accuracy and excessive wear of the roller surface caused by a rapid increase in temperature.

[0026] 2. This invention, by setting up a strong cleaning mechanism, adds a strong cleaning pipe to the top of the cooling water pipe. The top of the strong cleaning pipe is connected to a high-pressure gas connection fitting, and the bottom of the strong cleaning pipe is inserted into the inner cavity of the cooling pipe through the strong cleaning pipe inlet. A connecting inner pipe is movably set in the inner cavity of the strong cleaning pipe. When the connecting inner pipe rotates to the connecting groove to sequentially conduct the high-pressure gas connection fitting, the strong cleaning pipe inlet, the cooling water pipe, and the cooling pipe inlet, the high-pressure gas and the normal-pressure water in the cooling water pipe merge at the cooling pipe inlet to form a high-pressure water-gas mixed jet, which is sprayed from the drain pipe and the drain trough onto the surface of the straightening shaft roller, significantly improving the ability to remove stubborn iron oxide scale and debris from the roller surface.

[0027] 3. This invention, by setting up a high-pressure washing trigger mechanism, sets up an outlet sliding support and a sliding pipe on the left side of the outlet roller conveyor, and slides a trigger plate at the bottom of the sliding pipe through a trigger limit fixing block. The trigger plate is kept in a normal reset state by using a reset spring group. When the straight seam welded pipe completely leaves the straightening machine and moves out along the outlet roller conveyor, the tail of the welded pipe presses down on the trigger plate, and the trigger plate slides down, driving the first trigger rod and the trigger tooth plate to move down synchronously. The trigger tooth plate drives the inner tube to rotate to the conduction position through the meshing transmission with the trigger gear, the connecting rod extension rod and the inner tube connecting rod. This realizes the automatic triggering of high-pressure washing after straightening, avoiding the problems of untimely washing and water waste. At the same time, no matter how the length of the straight seam welded pipe changes, the trigger signal is always the tail of the welded pipe pressing down on the trigger plate, completely eliminating the trigger position deviation caused by the fluctuation of the pipe length.

[0028] 4. This invention, by setting up a reinforcing toothed plate, a sliding pressurizing pipe, an inclined chute, a pull rope, a winding column, a reinforcing long rod, a reinforcing synchronous plate, a synchronous shaft, and a reinforcing gear, allows the reinforcing toothed plate to move downward simultaneously when the trigger plate is driven downward. The reinforcing long rod and winding column are then driven to rotate by the reinforcing gear and synchronous shaft. The winding column pulls the sliding pressurizing pipe along the inner cavity of the strong wash pipe inlet via the pull rope. Under the guidance of the inclined chute and the matching sliding groove, the sliding pressurizing pipe rises simultaneously, gradually reducing the flow cross-sectional area of ​​the strong wash pipe inlet. This provides secondary throttling and pressurization of the high-pressure water-air mixture jet, while slightly increasing the flow cross-sectional area of ​​the cooling pipe inlet, increasing water flow, and further enhancing the impact force and cleaning effect of the flushing jet. This ensures that stubborn iron oxide scale and metal debris adhering to the surface of the straightening roller are thoroughly washed away. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 This is a three-dimensional structural diagram of the inlet roller conveyor provided by the present invention.

[0032] Figure 3 This is a three-dimensional structural diagram of the outlet roller conveyor provided by the present invention.

[0033] Figure 4 A three-dimensional structural diagram of the straightening assembly provided by the present invention.

[0034] Figure 5 This is a three-dimensional structural diagram of the left-side unit support plate provided by the present invention.

[0035] Figure 6 A three-dimensional structural diagram of the servo motor provided by the present invention.

[0036] Figure 7 This is a three-dimensional structural diagram of the straightening base provided by the present invention.

[0037] Figure 8 This is a three-dimensional structural diagram of the leakage tube provided by the present invention.

[0038] Figure 9 This is a three-dimensional structural diagram of the connecting water pipe provided by the present invention.

[0039] Figure 10 A three-dimensional structural diagram of the turbine blade provided by the present invention.

[0040] Figure 11 A three-dimensional structural diagram of the trigger plate provided by the present invention.

[0041] Figure 12 A three-dimensional structural diagram of the trigger gear provided by the present invention.

[0042] Figure 13 This is a three-dimensional structural diagram of the sliding pressure boosting pipe provided by the present invention.

[0043] Figure 14 This is a three-dimensional structural diagram of the strong washing tube socket provided by the present invention.

[0044] Figure label:

[0045] Conveying mechanism 100; Inlet roller conveyor 101; Outlet roller conveyor 102; Multi-axis straightening mechanism 200; Straightening group 201; Straightening base 201a; Collection trough 201a-1; Collection port 201a-2; Top shaft support frame 201b; Straightening shaft roller 201c; Leakage trough 201d; Leakage pipe 201e; Motor base 202; Servo motor 203; Universal rod 204; Shaft rotation rod 205; Water purging mechanism 300; Unit back plate 301; Left side unit support plate 302; Water tank 303; Water supply pipe 304; Connecting water pipe 305; Cooling water pipe 306; Cooling pipe inlet 307; Linkage mechanism 400; Linkage rod 401; Linkage shaft 402; First sector gear 403; Second sector gear 404; Turbine blade 405; High-pressure cleaning mechanism 500; High-pressure cleaning pipe 501; High-pressure air connection fitting 502; High-pressure cleaning pipe inlet 503; Connecting inner pipe 504; Connecting groove 505; High-pressure cleaning triggering mechanism 600; Inner pipe connecting rod 601; Connecting rod extension rod 602; Trigger gear 603; Outlet sliding support 604; Sliding pipe 605; Trigger limit fixing block 606; Trigger plate 607; Reset spring assembly 608; First trigger rod 609; Second trigger rod 610; Reinforcing toothed plate 610a; Sliding pressurizing fitting 610b; Inclined slide groove 610c; Pull rope 610d; Winding column 610e; Reinforcing long rod 610f; Reinforcing synchronous plate 610g; Synchronous shaft 610h; Reinforcing gear 610i; Trigger toothed plate 611. Detailed Implementation

[0046] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0047] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0048] 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 phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0049] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0050] Example 1

[0051] The conveying mechanism 100 includes an inlet roller conveyor 101 and an outlet roller conveyor 102.

[0052] One embodiment of this first embodiment is as follows: The multi-axis straightening mechanism 200 includes a straightening group 201. Motor mounts 202 are fixedly connected to each of the four corners of the straightening group 201. A servo motor 203 is fixedly connected to the top of the motor mounts 202. A universal joint 204 is fixedly connected to the output end of the servo motor 203. A shaft rotation rod 205 is fixedly connected to the end of the universal joint 204 away from the servo motor 203. Three shaft rotation rods 205 are provided and evenly distributed. The three shaft rotation rods 205 are connected by a transmission belt. The straightening group 201 includes a straightening base 201a. Six straightening bases 201a are provided and are fixed horizontally. A top shaft support frame 201b is fixedly connected to the top of the straightening base 201a. The bottom of the top shaft support frame 201b and the top of the straightening base 201a are movably connected to straightening shaft rollers 201c through rotating shafts. One end of the straightening shaft roller 201c is fixedly connected to the shaft rotating rod 205. A drain groove 201d is opened on the top of the top shaft support frame 201b. A drain pipe 201e is fixedly connected to the top of the top shaft support frame 201b at the position corresponding to the drain groove 201d.

[0053] The water-passing mechanism 300 includes a unit back plate 301, which is located at the back end of the motor base 202. A left unit support plate 302 is fixedly connected to the left side of the back end of the inner wall of the unit back plate 301. A water tank 303 is fixedly connected to the back end of the unit back plate 301. A water supply pipe 304 is fixedly connected to the top of the front end of the water tank 303. The front end of the water supply pipe 304 passes through the back end of the inner wall of the unit back plate 301. A connecting water pipe 305 is fixedly connected to the right side of the front end of the left unit support plate 302. The top of the connecting water pipe 305 is fixedly connected to the end of the water supply pipe 304 away from the water tank 303. A cooling water pipe 306 is fixedly connected to the right side of the connecting water pipe 305. A cooling water pipe port 307 is provided at the bottom of the cooling water pipe 306. There are six cooling water pipe ports 307, each of which is fixedly connected to the top of the leakage pipe 201e.

[0054] The linkage mechanism 400 includes a linkage rod 401. A linkage shaft 402 is movably connected to the left side of the linkage rod 401 via a rotating shaft. The back end of the linkage shaft 402 is fixedly connected to the front end of the left unit support plate 302. The linkage rod 401 and the output end of the servo motor 203 are connected via a transmission belt. A first sector gear 403 is fixedly connected to the right side of the linkage rod 401. A second sector gear 404 is movably connected to the front end of the left unit support plate 302 via a rotating shaft. The left side of the second sector gear 404 meshes with the back end of the first sector gear 403. A turbine blade 405 is movably connected to the inner cavity of the water pipe 305 via a rotating shaft. The turbine blade 405 and the second sector gear 404 are connected via a transmission belt.

[0055] Both the inlet roller conveyor 101 and the outlet roller conveyor 102 are composed of multiple parallel and spaced conveyor rollers. Each conveyor roller is connected to the others by a chain and driven synchronously by an independent drive motor. They are used to transport the straight seam welded pipe from the previous process to the straightening machine, and after straightening, to transport the straight seam welded pipe from the straightening machine to the next process. The inlet roller conveyor 101 and the outlet roller conveyor 102 are symmetrically arranged along the longitudinal center line of the straightening machine. Their height is matched with the axial height of the straightening shaft roller 201c of the straightening group 201 to ensure that the straight seam welded pipe is always in a horizontal linear motion state during the straightening process.

[0056] The multi-axis straightening mechanism 200 includes a straightening group 201, which is the execution component for straightening straight seam welded pipes. It is arranged laterally along the longitudinal centerline of the straightening machine. Motor mounts 202 are fixedly connected to each of the four corners of the straightening group 201. The motor mounts 202 are steel structures, and their bottoms are fixed to the foundation platform of the straightening machine using anchor bolts. The four motor mounts 202 are rectangularly distributed at the four corners of the straightening group 201, providing a stable mounting foundation for four servo motors 203. Servo motors 203 are fixedly connected to the top of the motor mounts 202. The servo motors 203 are AC servo motors, with their output ends extending horizontally. There are four servo motors 203, respectively located at the four corners of the straightening group 201. The four servo motors 203 achieve synchronized speed control through a control system, jointly driving the straightening shaft rollers 201c to rotate. A universal joint 204 is fixedly connected to the output end of each servo motor 203. The universal joint 204 is a cross-shaft type universal coupling. A certain angular deviation and axial displacement are allowed between the output end and the shaft rotating rod 205 to compensate for the coaxiality error generated during installation and operation. The end of the universal rod 204 away from the servo motor 203 is fixedly connected to the shaft rotating rod 205. The shaft rotating rod 205 is a cylindrical long rod, and its two ends are rotatably supported on the side support of the straightening group 201 through bearing seats. There are three shaft rotating rods 205, which are evenly distributed. The three shaft rotating rods 205 are arranged in parallel along the longitudinal direction of the straightening machine, corresponding to the front end, middle end and rear end positions of the straightening group 201, respectively. The three shaft rotating rods 205 are connected by a transmission belt. The transmission belt is a synchronous toothed belt with an evenly spaced toothed structure on its inner ring. The surface of the shaft rotating rod 205 is provided with corresponding toothed grooves. The synchronous toothed belt is tensioned and fitted on the toothed grooves of the three shaft rotating rods 205 to ensure that the rotation speed and phase of the three shaft rotating rods 205 are consistent, thereby realizing the synchronous rotation of the front end, rear end and middle straightening rollers of the straightening group 201.

[0057] The straightening assembly 201 includes a straightening base 201a, which is a rectangular steel base fixedly mounted on a foundation platform. Six straightening bases 201a are arranged laterally and are linearly aligned at equal intervals along the longitudinal direction of the straightening machine. The spacing between adjacent straightening bases 201a is equal. A top shaft support frame 201b is fixedly connected to the top of each straightening base 201a. The two side columns of the top shaft support frame 201b are bolted to the sides of the straightening base 201a, forming a frame structure. Both the bottom of 01b and the top of the straightening base 201a are movably connected to straightening rollers 201c via rotating shafts. The straightening rollers 201c consist of upper and lower pairs of straightening rollers. The upper straightening roller is rotatably mounted on the bottom of the top shaft support frame 201b via a rotating shaft, and the lower straightening roller is rotatably mounted on the top of the straightening base 201a via a rotating shaft. The upper and lower straightening rollers cooperate to clamp and straighten the straight seam welded pipe. Both the upper and lower straightening rollers are cylindrical rollers, adapted to the outer diameter of the straight seam welded pipe, to ensure that the welded pipe can be stably clamped and uniformly straightened during the straightening process. The straightening roller 201c is fixedly connected to the shaft rotating rod 205 at one end, and the end of the straightening roller 201c is fixedly connected to the end of the shaft rotating rod 205 through a coupling. This allows the rotational power of the shaft rotating rod 205 to be transmitted to the straightening roller 201c through the coupling, driving the straightening roller 201c to rotate. Through extrusion and friction, the straight seam welded pipe moves forward in the straightening group 201 and completes the straightening. The top of the top shaft support frame 201b has a drain groove 201d, which is a rectangular through-slot penetrating the top wall of the top shaft support frame 201b, used to drain the liquid flowing through the top shaft support. The coolant and rinsing waste liquid at the top of the frame 201b are guided downwards. A drain pipe 201e is fixedly connected to the top of the top shaft support frame 201b and at the position corresponding to the drain tank 201d. The drain pipe 201e is a stainless steel pipe with a circular cross section. The bottom opening end of the drain pipe 201e is sealed and connected to the upper opening of the drain tank 201d. The top opening end of the drain pipe 201e extends upwards and is fixedly connected to the cooling pipe port 307 of the water-passing mechanism 300. It is used to guide the coolant and rinsing waste liquid from the water-passing mechanism 300 to the drain tank 201d and spray it on the surface of the straightening shaft roller 201c.

[0058] The water-passing mechanism 300 includes a unit back plate 301, which is a rectangular steel plate vertically mounted on the back end of the motor base 202. The bottom of the unit back plate 301 is fixedly connected to the foundation platform by bolts. The two sides of the unit back plate 301 are fixedly connected to the brackets on the sides of the straightening group 201 by bolts. The unit back plate 301 serves as the mounting base for the water-passing mechanism 300, the linkage mechanism 400, and the strong cleaning mechanism 500, providing stable support for each mechanism. A left unit support plate 302 is fixedly connected to the left side of the back end of the inner wall of the unit back plate 301. The left unit support plate 302 is a rectangular steel plate, and its left end face is fixedly connected to the inner wall of the unit back plate 301 by welding or bolts. The front end face of the left unit support plate 302 extends horizontally forward for mounting the linkage shaft 402 and the second sector gear 404. A water tank 303, which is a closed rectangular box, is fixedly connected to the back end of the unit back plate 301. The material is stainless steel plate. The top of the water tank 303 is equipped with a water inlet and the bottom is equipped with a drain outlet for storing cooling water. A water supply pipe 304 is fixedly connected to the top of the front end of the water tank 303. The water supply pipe 304 is a stainless steel round pipe. One end of the water supply pipe 304 is welded and fixed to the water outlet at the front end of the water tank 303. The other end of the water supply pipe 304 extends horizontally forward and passes through the back end of the inner wall of the unit back plate 301. A connecting water pipe 305 is fixedly connected to the right side of the front end of the left unit support plate 302. The connecting water pipe 305 is an L-shaped stainless steel pipe. The horizontal section of the connecting water pipe 305 extends in the transverse direction. The top of the connecting water pipe 305 and the end of the water supply pipe 304 away from the water tank 303 are fixedly connected. The top open end of the connecting water pipe 305 is sealed to the water outlet of the water supply pipe 304 through a flange. The internal cavities of the two are interconnected, so that the water in the water tank 303 can flow into the connecting water pipe 305 through the water supply pipe 304 in sequence.

[0059] A cooling water pipe 306 is fixedly connected to the right side of the connecting water pipe 305. The cooling water pipe 306 is a horizontally extending stainless steel round pipe. The left end of the cooling water pipe 306 is sealed to the right end of the connecting water pipe 305 through a threaded joint. The right end of the cooling water pipe 306 is closed. The cooling water pipe 306 extends along the transverse direction of the straightening machine, and its length covers the transverse distribution range of the six straightening bases 201a. A cooling pipe opening 307 is provided at the bottom of the cooling water pipe 306. The cooling pipe opening 307 is a short circular stainless steel pipe. The top of the cooling pipe opening 307 is fixedly connected to the bottom of the cooling water pipe 306 by welding. The internal tube of the cooling pipe opening 307... The cavity is connected to the internal cavity of the cooling water pipe 306. Six cooling pipe ports 307 are provided and are fixedly connected to the top of the drain pipe 201e respectively. The six cooling pipe ports 307 are distributed at equal distances along the bottom of the cooling water pipe 306, corresponding to the positions of the six straightening bases 201a respectively. The bottom opening end of each cooling pipe port 307 is sealed to the top opening end of the corresponding drain pipe 201e through a threaded joint, so that the cooling water in the cooling water pipe 306 can flow into the drain tank 201d in sequence through the cooling pipe port 307 and the drain pipe 201e, and spray downward from the drain tank 201d onto the surface of the straightening shaft roller 201c and the straight seam welded pipe.

[0060] The connecting rod 401 is a cylindrical long rod that extends horizontally along the longitudinal direction of the straightening machine. A bearing is fitted at the left end of the connecting rod 401, and the outer ring of the bearing is rotatably mounted on the front end of the left-side unit support plate 302 via a bearing housing, allowing the connecting rod 401 to rotate freely around its own axis. A connecting shaft 402 is movably connected to the left side of the connecting rod 401 via a rotating shaft. The connecting shaft 402 is a cylindrical short shaft that extends horizontally. The back end of the connecting shaft 402 is fixedly connected to the front end of the left-side unit support plate 302. A bearing is fitted at the front end of the connecting shaft 402, and the outer ring of the bearing is fixedly connected to the left end of the connecting rod 401, allowing the connecting rod 401 to swing freely in the horizontal plane with the connecting shaft 402 as a fulcrum. Simultaneously, the connecting rod 401 can... Rotating around its own axis, the connecting rod 401 and the output end of the servo motor 203 are connected by a transmission belt. The rotational power of the servo motor 203 can be transmitted to the connecting rod 401 through a synchronous toothed belt, driving the connecting rod 401 to rotate around its own axis. A first sector gear 403 is fixedly connected to the right side of the connecting rod 401. The first sector gear 403 is a sector gear with teeth on part of its circumference. The center hole of the first sector gear 403 is fixedly connected to the right end of the connecting rod 401 by a key. The first sector gear 403 rotates synchronously with the connecting rod 401. A second sector gear 404 is movably connected to the front end of the left unit support plate 302 through a rotating shaft. A rotating shaft passes through the central hole of 04. The rear end of the rotating shaft is rotatably mounted on the front end of the left unit support plate 302 via a bearing seat, allowing the second sector gear 404 to rotate freely around the rotating shaft. The left side of the second sector gear 404 meshes with the back end of the first sector gear 403. The module and number of teeth of the first sector gear 403 and the second sector gear 404 are matched, transmitting the rotational motion of the connecting rod 401 to the second sector gear 404. The inner cavity of the connecting water pipe 305 is movably connected to a turbine blade 405 via a rotating shaft. The turbine blade 405 is an axial flow turbine blade, with a turbine rotating shaft passing through its center. The two ends of the turbine rotating shaft are rotatably mounted on the connecting water pipe 302 via sealed bearings. On the wall of the 05 pipe, the blades of the turbine blade 405 are spirally arranged along the axial direction of the turbine shaft. One end of the turbine shaft extends out of the wall of the water pipe 305 and is fitted with a driven pulley. The turbine blade 405 and the second sector gear 404 are connected by a transmission belt. The transmission belt is a synchronous toothed belt. One end of the belt is fitted on the driving pulley on the shaft of the second sector gear 404, and the other end is fitted on the driven pulley at the end of the turbine shaft. This allows the rotational motion of the second sector gear 404 to be transmitted to the turbine blade 405 through the synchronous toothed belt, driving the turbine blade 405 to rotate inside the water pipe 305, generating axial thrust on the water inside the water pipe 305, and increasing the flow speed of the water.

[0061] By setting up a multi-axis straightening mechanism 200, a water-passing mechanism 300, and a linkage mechanism 400, the output end of the servo motor 203 can simultaneously drive the straightening roller 201c and the linkage rod 401. Through the meshing and reversal of the first sector gear 403 and the second sector gear 404, and the transmission belt, the turbine blade 405 is driven to rotate continuously in the water pipe 305, realizing the synchronous drive of straightening operation and cooling water supply. This solves the technical problems in existing straightening machines, such as the need for a separate motor drive for the cooling water pump, high equipment cost, high energy consumption, and the inability to achieve synchronous start and stop of straightening and cooling, which can easily lead to a sharp increase in the surface temperature of the straightening roller and welded pipe due to operation delay, thus affecting the straightening accuracy and roller life. Water cooling is activated simultaneously with the start of straightening operation, reducing equipment manufacturing costs, simplifying the control system, reducing energy consumption, and ensuring that the surface of the straightening roller and welded pipe is always cooled during the straightening process.

[0062] Example 2

[0063] Based on Embodiment 1, this embodiment considers that during the straightening process, the iron oxide scale and metal debris on the surface of the straight seam welded pipe will gradually adhere to the surface of the straightening roller 201c under the squeezing action of the straightening roller. Although atmospheric pressure water spray can cool the straightening roller and the welded pipe, the water pressure is low and the water flow impact force is insufficient to wash off the iron oxide scale and metal debris adhering to the roller surface. As the straightening work continues, the impurities adhering to the roller surface gradually accumulate and thicken, which not only increases the friction coefficient between the straightening roller and the welded pipe, leading to increased straightening resistance and energy consumption, but also forms indentations or scratches on the surface of the welded pipe, seriously affecting the straightening quality and the surface finish of the welded pipe. Therefore, this embodiment sets up a strong cleaning mechanism 500. The high-pressure cleaning mechanism 500 includes a high-pressure cleaning pipe 501, which is located at the top of the cooling water pipe 306. A high-pressure gas connection fitting 502 is fixedly connected to the top of the high-pressure cleaning pipe 501, and a high-pressure cleaning pipe inlet 503 is fixedly connected to the bottom of the high-pressure cleaning pipe 501. Six high-pressure cleaning pipe inlets 503 are provided at the positions corresponding to the leakage pipe 201e and the cooling water pipe inlet 307. The bottom of the high-pressure cleaning pipe inlet 503 extends into the inner cavity of the cooling water pipe inlet 307. A connecting inner pipe 504 is movably connected to the inner cavity of the high-pressure cleaning pipe 501. A connecting groove 505 is provided in the inner cavity of the connecting inner pipe 504 at the connection positions of the high-pressure gas connection fitting 502, the high-pressure cleaning pipe inlet 503, the cooling water pipe 306, and the cooling water pipe inlet 307.

[0064] When the inner connecting pipe 504 rotates to the first angle position, the connecting groove 505 is located at the upper part of the inner connecting pipe 504. At this time, the connecting groove 505 is not connected to any pipe, the high-pressure gas connecting fitting 502 is blocked by the outer wall of the inner connecting pipe 504, the high-pressure gas in the strong cleaning pipe 501 cannot flow downward, and the normal pressure water in the cooling water pipe 306 flows downward normally through the annular gap between the cooling water pipe port 307 and the strong cleaning pipe socket 503, realizing normal pressure water spraying. When the inner connecting pipe 504 rotates to the second angle position, that is, the trigger position, the connecting groove 505 moves to the corresponding high-pressure gas connecting fitting 502 and the strong cleaning pipe socket 503. The position between 03 allows the internal cavity of the high-pressure gas connecting pipe 502 to be interconnected with the internal cavity of the strong washing pipe socket 503 through the connecting groove 505. At this time, the high-pressure gas in the strong washing pipe 501 is sprayed downward through the high-pressure gas connecting pipe 502, the connecting groove 505, and the strong washing pipe socket 503 in sequence, and enters the inner cavity of the cooling pipe port 307. It mixes with the normal pressure water flowing downward through the cooling pipe port 307 in the cooling water pipe 306 at the bottom of the inner cavity of the cooling pipe port 307 to form a high-pressure water-gas mixed jet, which is sprayed onto the surface of the straightening shaft roller 201c through the leakage pipe 201e and the leakage tank 201d.

[0065] By setting up a strong cleaning mechanism 500, the function of switching from normal pressure water spraying to high-pressure water-air mixed rinsing is realized. During the straightening process, the connecting inner tube 504 is in the first angle position, the connecting groove 505 cuts off the high-pressure air path, and the normal pressure water in the cooling water pipe 306 flows normally downward through the annular gap between the cooling pipe port 307 and the strong cleaning pipe inlet 503, providing normal pressure water spray cooling for the straight seam welded pipe and the straightening shaft roller 201c during straightening. When strong cleaning of the straightening shaft roller 201c is required, the strong cleaning trigger mechanism 600 drives the connecting inner tube 504 to rotate. At the second angle position, the connecting groove 505 connects the high-pressure gas connecting pipe 502 with the strong washing pipe socket 503. The high-pressure gas rushes into the inner cavity of the cooling pipe port 307 and merges with the normal pressure water flow at the bottom of the inner cavity of the cooling pipe port 307 to form a high-pressure water-gas mixed jet. This jet can effectively wash away the iron oxide scale and metal debris adhering to the surface of the straightening roller 201c, peeling them off the roller surface and flushing them into the collection groove 201a-1 below. The high-pressure gas expands rapidly during the jetting process, producing an auxiliary cooling effect on the roller surface and the welded pipe surface, further reducing the temperature of the straightening area.

[0066] Example 3

[0067] Based on Embodiment 2, this embodiment considers that the strong cleaning mechanism 500 in Embodiment 2 can convert atmospheric pressure water spray into a high-pressure water-air mixed flushing jet to powerfully wash away the iron oxide scale and metal debris adhering to the surface of the straightening roller 201c. However, the start-up and shutdown of the high-pressure water-air mixed flushing jet still depend on the operation or independent electrical control system. In actual production, operators need to manually turn the high-pressure air source on or off according to the straightening progress of the straight seam welded pipe. This not only increases the burden of manual operation but also easily leads to improper cleaning timing due to untimely operation, causing damage to the welded pipe surface and affecting the subsequent straightening quality. Furthermore, under the harsh working conditions of high temperature, high humidity, and high dust in the straightening machine, electrical components are easily corroded by iron oxide scale and coolant, resulting in increased failure rate and maintenance costs. Therefore, this embodiment sets up a strong washing trigger mechanism 600, which includes an inner tube connecting rod 601. The left side of the inner tube connecting rod 601 and the connecting rod 601 are connected to the inner tube connecting rod 601. The right side of the inner tube 504 is fixedly connected to the inner tube connecting rod 601, and the right side of the connecting rod extension rod 602 is fixedly connected to the connecting rod extension rod 602. The right side of the connecting rod extension rod 602 is fixedly connected to the trigger gear 603. The left side of the outlet roller conveyor 102 is fixedly connected to the outlet sliding support 604. The top of the outlet sliding support 604 is fixedly connected to the sliding tube 605. The right side of the bottom of the sliding tube 605 is fixedly connected to the trigger limit fixing block 606. The right side of the trigger limit fixing block 606 is slidably connected to the trigger plate 6. 07. A reset spring assembly 608 is fixedly connected to the top of the trigger plate 607. The top of the reset spring assembly 608 is fixedly connected to the bottom of the sliding tube 605. A first trigger rod 609 and a second trigger rod 610 are fixedly connected to the front end and the back end of the trigger plate 607. The first trigger rod 609 is located at the back end of the second trigger rod 610. A trigger tooth plate 611 is fixedly connected to the top of the front end of the first trigger rod 609. The front end of the trigger tooth plate 611 is meshed with the back end of the trigger gear 603.

[0068] When the trigger plate 607 moves downward under the pressure of the tail end of the straight seam welded pipe, the trigger tooth plate 611 moves downward synchronously with the trigger plate 607. The trigger tooth plate 611 drives the trigger gear 603 to rotate around its axis through gear and rack meshing. The rotation of the trigger gear 603 is transmitted to the connecting inner tube 504 through the connecting rod extension rod 602 and the inner tube connecting rod 601, driving the connecting inner tube 504 to rotate in the inner cavity of the strong cleaning tube 501. When the trigger plate 607, that is, the tail end of the straight seam welded pipe, completely presses the trigger plate 607, the connecting inner tube 504 rotates to the first angle position, and the connecting groove 505 connects the high pressure air connecting pipe fitting 502 with the strong cleaning tube socket 503, starting the high pressure water and air mixed flushing.

[0069] By setting up a strong washing trigger mechanism 600, the function of automatically starting high-pressure water-air mixed washing after the straight seam welded pipe completely leaves the straightening machine is realized. When the straight seam welded pipe moves out of the straightening machine and moves to the right along the exit roller table 102, the tail of the straight seam welded pipe presses against the trigger plate 607, driving the trigger plate 607 to slide. The trigger tooth plate 611 drives the trigger gear 603 to rotate, driving the connecting inner tube 504 to rotate to the angle position, connecting the high-pressure gas connecting pipe 502 with the strong washing pipe inlet 503. The high-pressure gas rushes into the inner cavity of the cooling pipe inlet 307, mixes with the normal pressure water to form a high-pressure water-air mixed jet, which washes the straightening shaft roller 201c. The surface is subjected to powerful rinsing, which fundamentally avoids the problems of improper cleaning timing caused by delays in manual operation and failures of electrical components. At the same time, since the trigger signal of the trigger plate 607 comes from whether the tail of the straight seam welded pipe has completely left the exit roller table 102, regardless of the change in the length of the straight seam welded pipe, the trigger plate 607 is pressed down by the tail of the welded pipe as the switching signal. This eliminates the trigger position deviation caused by the fluctuation of the pipe length, and ensures that the high-pressure water and air mixed rinsing is always started only after the welded pipe has completely left the straightener. This ensures that the surface of the welded pipe is not damaged by the high-pressure jet, and at the same time ensures that the roller surface can be cleaned in time after each straightening operation.

[0070] Example 4

[0071] Based on Embodiment 3, this embodiment considers that the high-pressure water-air mixed rinsing can be automatically started after the straight seam welded pipe leaves the straightening machine via the strong rinsing trigger mechanism 600 in Embodiment 3, which solves the problem of improper cleaning timing caused by manual operation delays and electrical component failures. However, the problem of limited pressure of the high-pressure water-air mixed rinsing jet still exists. In actual production, the impact force of the high-pressure water-air mixed jet is insufficient, making it difficult to completely rinse away the dried or compacted iron oxide scale and metal debris adhering to the surface of the straightening roller 201c. The brush detaches, resulting in incomplete cleaning. Therefore, this embodiment includes a reinforcing toothed plate 610a, a sliding pressure boosting pipe 610b, an inclined slide groove 610c, a pull rope 610d, a winding column 610e, a reinforcing long rod 610f, a reinforcing synchronous plate 610g, a synchronous shaft 610h, and a reinforcing gear 610i. The top of the back end of the second trigger rod 610 is fixedly connected to the reinforcing toothed plate 610a, and the bottom of the inner cavity of the strong wash pipe inlet 503 is slidably connected to the sliding pressure boosting pipe 610b. The surface of the sliding booster fitting 610b has an inclined groove 610c. A pull rope 610d is fixedly connected to the surface of the sliding booster fitting 610b. The end of the pull rope 610d away from the sliding booster fitting 610b passes through the surface of the cooling pipe inlet 307 and is fixedly connected to a winding column 610e. The top of the winding column 610e and the top of the inner wall of the unit back plate 301 are movably connected by a rotating shaft. A reinforcing rod 610f is fixedly connected to the right side of the winding column 610e. The top of the inner wall of the unit back plate 301 and the right side of the corresponding reinforcing rod 610f are fixedly connected to... A reinforcing synchronous plate 610g is attached. A synchronous shaft 610h is movably connected to the left side of the reinforcing synchronous plate 610g and at the position corresponding to the reinforcing long rod 610f via a rotating shaft. The left side of the synchronous shaft 610h and the right side of the reinforcing long rod 610f are fixedly connected. A reinforcing gear 610i is movably connected to the bottom left side of the reinforcing synchronous plate 610g via a rotating shaft. The reinforcing gear 610i and the synchronous shaft 610h are connected by a transmission belt. The front end of the reinforcing gear 610i is meshed with the back end of the reinforcing toothed plate 610a.

[0072] When the trigger plate 607 moves upward under the pressure at the tail of the straight seam welded pipe, the second trigger rod 610 drives the reinforcing toothed plate 610a to move upward synchronously. The reinforcing toothed plate 610a drives the reinforcing gear 610i to rotate around its axis through gear and rack meshing. The rotation of the reinforcing gear 610i is transmitted to the synchronous shaft 610h and the reinforcing rod 610f through the transmission belt, which in turn drives the winding column 610e to rotate around its axis. When the winding column 610e rotates, it winds the pull rope 610d around the annular winding groove. When the trigger plate 607 moves, the winding column 610e rotates the pull rope 610d to wind it, and the sliding pressure boosting pipe fitting 610b slides along the inner cavity of the strong washing pipe inlet 503 to the top position. At this point, the inner cavity of the sliding booster fitting 610b is completely aligned with the inner cavity of the strong wash pipe socket 503, gradually reducing the flow cross-sectional area of ​​the strong wash pipe socket 503, and performing secondary throttling and pressurization on the high-pressure water-air mixture jet. At the same time, the flow cross-sectional area of ​​the inner cavity of the cooling pipe port 307 is slightly increased, increasing the water flow. The rotation and rise of the sliding booster fitting 610b causes the top end face of the sliding booster fitting 610b to gradually approach the stepped surface of the inner cavity of the strong wash pipe socket 503, partially closing the flow channel of the strong wash pipe socket 503, so that the flow cross-sectional area of ​​the high-pressure water-air mixture jet gradually decreases and the jet velocity gradually increases, realizing secondary throttling and pressurization on the high-pressure water-air mixture jet, thereby obtaining a stronger impact force.

[0073] By incorporating a reinforcing toothed plate 610a, a sliding pressurizing pipe 610b, an inclined slide groove 610c, a pull rope 610d, a winding column 610e, a reinforcing long rod 610f, a reinforcing synchronous plate 610g, a synchronous shaft 610h, and a reinforcing gear 610i, the high-pressure water-air mixed flushing jet simultaneously performs secondary throttling and pressurization while being automatically triggered. At the instant the high-pressure flushing is initiated by the strong wash triggering mechanism 600, the second trigger rod 610, through the meshing of the gear rack and pinion of the reinforcing toothed plate 610a and the reinforcing gear 610i, and via the transmission belt, synchronous shaft 610h, reinforcing long rod 610f, and winding column 610e, converts the linear motion of the trigger plate 607 resetting downwards into the rotational motion of the winding column 610e. This rotation, through the pull rope 610d, pulls the sliding pressurizing pipe 610. The sliding booster pipe 610b rotates and rises within the cavity of the strong wash pipe inlet 503. Utilizing the guiding effect of the inclined slide groove 610c and the matching sliding groove, the cross-sectional area of ​​the strong wash pipe inlet 503 gradually decreases as the sliding booster pipe 610b rises. This allows the high-pressure water-air mixed jet to receive secondary throttling and pressurization based on the original compressed air pressure in the workshop, significantly enhancing the jet's impact force. This effectively washes away stubborn iron oxide scale and metal debris that have dried or compacted and adhered to the surface of the straightening shaft roller 201c, ensuring thorough cleaning of the roller surface. Simultaneously, since the pressurization action of the sliding booster pipe 610b is synchronized with the triggering action of the strong wash triggering mechanism 600, no additional control links or power sources are required. The linkage between the start-up and pressurization actions is completed entirely by the same trigger signal, ensuring the synchronicity and reliability of the actions and further saving water resources.

[0074] Working principle: The straight seam welded pipe is conveyed from the previous process to the inlet end of the straightening group 201 via the inlet roller conveyor 101. The operator starts the control system, and the four servo motors 203 start running synchronously. After the servo motors 203 start, the servo motor 203 → universal rod 204 → shaft rotating rod 205 → straightening shaft roller 201c, the upper straightening roller and the lower straightening roller rotate synchronously in opposite directions, clamping the straight seam welded pipe and moving it forward to perform multi-axis straightening. The servo motor 203 → transmission belt → connecting rod 401 → first sector gear 403 → second sector gear 404 → transmission belt → turbine blade 405. The turbine blade 405 rotates continuously in the connecting water pipe 305, generating axial thrust on the water in the connecting water pipe 305 and accelerating the water flow. The cooling water in the water tank 303 is accelerated by the water supply pipe 304, the connecting water pipe 305, and the turbine blade 405 in sequence, and then enters the cooling water pipe 306. It then flows into the leakage tank 201d through the cooling pipe port 307 and the leakage pipe 201e. The water is sprayed downward from the leakage tank 201d onto the surface of the straightening shaft roller 201c and the straight seam welded pipe to achieve atmospheric pressure water spray cooling.

[0075] With the inner tube 504 in its normal angle position, the connecting groove 505 cuts off the passage between the high-pressure gas connecting pipe 502 and the strong washing pipe inlet 503, preventing the high-pressure gas from flowing downwards. The atmospheric pressure water in the cooling water pipe 306 flows downwards normally through the annular gap between the cooling pipe inlet 307 and the strong washing pipe inlet 503, performing only atmospheric pressure water spraying. Under the clamping and rotational drive of the straightening roller 201c, the straight seam welded pipe moves continuously from the inlet end to the outlet end of the straightening group 201. During this process, the straightening roller 201c performs multi-axis synchronous straightening of the welded pipe. The atmospheric pressure water spraying continuously cools the surface of the straightening roller and the welded pipe. The iron oxide scale and debris washed off flow into the collection tank 201a-1 through the collection port 201a-2 with the cooling water. At this time, the tail of the straight seam welded pipe has not yet reached the outlet roller table 102, the trigger plate 607 has not been triggered, and the high-pressure water-air mixed flushing has not yet started.

[0076] After straightening, the straight seam welded pipe enters the exit roller conveyor 102 from the exit end of the straightening group 201 and continues to move to the right along the exit roller conveyor 102. When the tail of the straight seam welded pipe moves to the position of the trigger plate 607, the end face of the welded pipe contacts and presses against the right end face of the trigger plate 607. Since the trigger plate 607 is slidably installed on the right side of the trigger limiting fixing block 606, after being pressed down by the tail of the welded pipe, the trigger plate 607 overcomes the elastic force of the reset spring group 608 and slides down along the sliding guide groove of the trigger limiting fixing block 606. When the trigger plate 607 slides down, the first trigger rod 609 and the second trigger rod 610 fixedly connected to it move down synchronously. During the movement, the workpiece will touch the lower ends of the first trigger rod 609 and the second trigger rod 610, driving them to move further down. The first trigger rod 609 drives the trigger tooth plate 611 to move down synchronously. The toothed plate 611, through meshing with the trigger gear 603, drives the trigger gear 603 to rotate around its axis. The rotation of the trigger gear 603 is transmitted to the connecting inner tube 504 through the connecting rod extension rod 602 and the inner tube connecting rod 601, driving the connecting inner tube 504 to rotate in the inner cavity of the strong cleaning tube 501. The second trigger rod 610 drives the reinforcing toothed plate 610a to move downward synchronously. The reinforcing toothed plate 610a, through meshing with the reinforcing gear 610i, drives the reinforcing gear 610i to rotate around its axis. The rotation of the reinforcing gear 610i is transmitted to the synchronous shaft 610h through the transmission belt, and then drives the winding column 610e to rotate around its axis through the reinforcing long rod 610f. When the tail of the straight seam welded pipe completely presses against the trigger plate 607, the trigger plate 607 slides downward to the lowest position. At this time, the connecting inner tube 504 has rotated to the second angle position.

[0077] The connecting groove 505 moves to the position between the corresponding high-pressure gas connecting pipe 502 and the strong washing pipe socket 503, connecting the internal cavity of the high-pressure gas connecting pipe 502 with the internal cavity of the strong washing pipe socket 503. The high-pressure gas in the strong washing pipe 501 is sprayed downward through the high-pressure gas connecting pipe 502, the connecting groove 505, and the strong washing pipe socket 503 in sequence, and enters the inner cavity of the cooling pipe port 307. At the same time, the atmospheric pressure water in the cooling water pipe 306 flows downward through the cooling pipe port 307. The high-pressure gas and the atmospheric pressure water meet and mix at the bottom of the inner cavity of the cooling pipe port 307 to form a high-pressure water-gas mixed jet, which is sprayed onto the surface of the straightening shaft roller 201c through the drain pipe 201e and the drain trough 201d to powerfully wash away the iron oxide scale and metal debris adhering to the roller surface.

[0078] As the trigger plate 607 moves downward, the second trigger rod 610 drives the reinforcing toothed plate 610a to move downward synchronously. Through the reinforcing gear 610i, transmission belt, synchronous shaft 610h, and reinforcing rod 610f, the winding column 610e is driven to rotate. When the winding column 610e rotates, it winds the pull rope 610d into the annular winding groove. The pull rope 610d pulls the sliding pressure boosting pipe 610b to slide upward along the inner cavity of the strong wash pipe inlet 503. While sliding upward, the sliding pressure boosting pipe 610b rotates and rises around its own axis under the guidance of the inclined slide groove 610c and the matching sliding groove. The rotation and rise of the sliding pressure boosting pipe 610b causes its top end face to gradually approach the step surface of the inner cavity of the strong wash pipe inlet 503, gradually reducing the flow cross-sectional area of ​​the inner cavity of the strong wash pipe inlet 503, and performing secondary throttling and pressurization on the high-pressure water-air mixed jet, which significantly enhances the impact force of the flushing jet.

[0079] The iron oxide scale and metal debris washed off are mixed with cooling water and rinsing fluid, and then flow into collection tank 201a-1 through collection port 201a-2 for centralized collection to prevent pollution of the working environment.

[0080] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible without substantially departing from the novelty and advantages of the subject matter described in this application. For example, variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​such as temperature, pressure, etc., installation arrangements, use of materials, color, orientation, etc. For instance, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise changed, and the nature or number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure performing the function described herein, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0081] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments may be described, i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention.

[0082] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A straightening machine for straight seam welded pipes, comprising a conveying mechanism (100) including an inlet roller conveyor (101) and an outlet roller conveyor (102); characterized in that: A multi-axis straightening mechanism (200) is provided inside the inlet roller conveyor (101) and the outlet roller conveyor (102). The multi-axis straightening mechanism (200) is capable of performing multi-axis synchronous straightening of straight seam welded pipes. A water-cooling mechanism (300) is provided on top of a multi-axis straightening mechanism (200). The water-cooling mechanism (300) is capable of providing atmospheric pressure water cooling to the surface of the straight seam welded pipe and the roller surface during straightening. Linkage mechanism (400), which is mounted on multi-axis straightening mechanism (200), can take force from the driving force of multi-axis straightening mechanism (200) and drive water-passing mechanism (300) to generate continuous water flow, and use water spray cooling at the same time as the straightening operation is started; A strong cleaning mechanism (500) is installed inside the water-passing mechanism (300). The strong cleaning mechanism (500) can assist the water-passing mechanism (300) in switching the water path effect and further convert the normal pressure water spray into a high pressure water-air mixed flushing jet. A strong washing trigger mechanism (600) is provided inside the strong cleaning mechanism (500). The strong washing trigger mechanism (600) enables the strong cleaning mechanism (500) to perform trigger control, further assisting in the control of the cleaning work, so that the high-pressure water and air mixed flushing is automatically started after the straight seam welded pipe is completely removed from the straightening machine.

2. The straightening machine for straight seam welded pipe according to claim 1, characterized in that: The multi-axis straightening mechanism (200) includes a straightening assembly (201), with motor mounts (202) fixedly connected to each of the four corners of the straightening assembly (201). A servo motor (203) is fixedly connected to the top of the motor mounts (202). A universal joint (204) is fixedly connected to the output end of the servo motor (203). A shaft rotating rod (205) is fixedly connected to the end of the universal joint (204) away from the servo motor (203). There are three shaft rotating rods (205) arranged at equal distances. The three shaft rotating rods (205) are connected by a transmission belt. The straightening assembly (201) includes a straightening base (201a). The straightening base (201a) is... 1a) Six straightening bases (201a) are provided and fixed laterally. The top of the straightening base (201a) is fixedly connected to a top shaft support frame (201b). The bottom of the top shaft support frame (201b) and the top of the straightening base (201a) are movably connected to straightening shaft rollers (201c) through rotating shafts. One end of the straightening shaft roller (201c) is fixedly connected to a shaft rotating rod (205). The top of the top shaft support frame (201b) is provided with a leakage groove (201d). The top of the top shaft support frame (201b) and the position corresponding to the leakage groove (201d) are fixedly connected to a leakage pipe (201e).

3. A straightening machine for straight seam welded pipes according to claim 1, characterized in that: The water-passing mechanism (300) includes a unit back plate (301), which is disposed at the back end of the motor base (202). A left unit support plate (302) is fixedly connected to the left side of the back end of the inner wall of the unit back plate (301). A water tank (303) is fixedly connected to the back end of the unit back plate (301). A water supply pipe (304) is fixedly connected to the top of the front end of the water tank (303). The front end of the water supply pipe (304) penetrates the back end of the inner wall of the unit back plate (301). A connecting water pipe (305) is fixedly connected to the right side of the front end of the left unit support plate (302). The top of the connecting water pipe (305) and the end of the water supply pipe (304) away from the water tank (303) are fixedly connected. A cooling water pipe (306) is fixedly connected to the right side of the connecting water pipe (305). A cooling pipe port (307) is provided at the bottom of the cooling water pipe (306). There are six cooling pipe ports (307) and they are fixedly connected to the top of the leakage pipe (201e) respectively.

4. A straightening machine for straight seam welded pipes according to claim 3, characterized in that: The linkage mechanism (400) includes a linkage rod (401). The left side of the linkage rod (401) is movably connected to a linkage shaft (402) via a rotating shaft. The back end of the linkage shaft (402) is fixedly connected to the front end of the left unit support plate (302). The linkage rod (401) and the output end of the servo motor (203) are connected via a transmission belt. The right side of the linkage rod (401) is fixedly connected to a first sector gear (403). The front end of the left unit support plate (302) is movably connected to a second sector gear (404) via a rotating shaft. The left side of the second sector gear (404) meshes with the back end of the first sector gear (403). The inner cavity of the connecting water pipe (305) is movably connected to a turbine blade (405) via a rotating shaft. The turbine blade (405) and the second sector gear (404) are connected via a transmission belt.

5. A straightening machine for straight seam welded pipes according to any one of claims 2 to 4, characterized in that: The high-pressure cleaning mechanism (500) includes a high-pressure cleaning pipe (501), which is located at the top of the cooling water pipe (306). A high-pressure gas connection fitting (502) is fixedly connected to the top of the high-pressure cleaning pipe (501), and a high-pressure cleaning pipe inlet (503) is fixedly connected to the bottom of the high-pressure cleaning pipe (501). Six high-pressure cleaning pipe inlets (503) are provided at positions corresponding to the leakage pipe (201e) and the cooling water pipe inlet (307). The bottom of the high-pressure cleaning pipe inlet (503) extends into the inner cavity of the cooling water pipe inlet (307). A connecting inner pipe (504) is movably connected to the inner cavity of the high-pressure cleaning pipe (501). A connecting groove (505) is provided in the inner cavity of the connecting inner pipe (504) at the connection positions of the high-pressure gas connection fitting (502), the high-pressure cleaning pipe inlet (503), the cooling water pipe (306), and the cooling water pipe inlet (307).

6. A straightening machine for straight seam welded pipes according to claim 5, characterized in that: The strong wash triggering mechanism (600) includes an inner tube connecting rod (601), the left side of which is fixedly connected to the right side of the inner tube (504), a connecting rod extension rod (602) fixedly connected to the right side of the inner tube connecting rod (601), a trigger gear (603) fixedly connected to the right side of the connecting rod extension rod (602), an outlet sliding support (604) fixedly connected to the left side of the outlet roller conveyor (102), a sliding tube (605) fixedly connected to the top of the outlet sliding support (604), and a trigger limit fixing block (606) fixedly connected to the right side of the bottom of the sliding tube (605). A trigger plate (607) is slidably connected to the right side of the fixed block (606). A reset spring assembly (608) is fixedly connected to the top of the trigger plate (607). The top of the reset spring assembly (608) is fixedly connected to the bottom of the sliding tube (605). A first trigger rod (609) and a second trigger rod (610) are fixedly connected to the front end and the back end of the trigger plate (607). The first trigger rod (609) is located at the back end of the second trigger rod (610). A trigger tooth plate (611) is fixedly connected to the top of the front end of the first trigger rod (609). The front end of the trigger tooth plate (611) is meshed with the back end of the trigger gear (603).

7. A straightening machine for straight seam welded pipes according to claim 6, characterized in that: A reinforcing toothed plate (610a) is fixedly connected to the top of the back end of the second trigger rod (610). A sliding pressurizing pipe fitting (610b) is slidably connected to the bottom of the inner cavity of the strong wash pipe inlet (503). An oblique groove (610c) is opened on the surface of the sliding pressurizing pipe fitting (610b). A pull rope (610d) is fixedly connected to the surface of the sliding pressurizing pipe fitting (610b). One end of the pull rope (610d) away from the sliding pressurizing pipe fitting (610b) passes through the surface of the cooling pipe inlet (307) and is fixedly connected to a winding column (610e). The top of the winding column (610e) and the top of the inner wall of the unit back plate (301) are movably connected by a rotating shaft. A reinforcing long rod (610e) is fixedly connected to the right side of the winding column (610e). A reinforcing synchronous plate (610g) is fixedly connected to the top of the inner wall of the unit back plate (301) and to the right side of the reinforcing long rod (610f). A synchronous shaft (610h) is movably connected to the left side of the reinforcing synchronous plate (610g) and to the position corresponding to the reinforcing long rod (610f) via a rotating shaft. The left side of the synchronous shaft (610h) and the right side of the reinforcing long rod (610f) are fixedly connected. A reinforcing gear (610i) is movably connected to the bottom left side of the reinforcing synchronous plate (610g) via a rotating shaft. The reinforcing gear (610i) and the synchronous shaft (610h) are connected by a transmission belt. The front end of the reinforcing gear (610i) and the back end of the reinforcing tooth plate (610a) are meshed.

8. A straightening machine for straight seam welded pipes according to claim 7, characterized in that: The inner cavity of the strong wash pipe socket (503) and the oblique sliding groove (610c) on the surface of the sliding pressure boosting pipe (610b) are provided with a matching sliding groove. The inner diameter of the strong wash pipe socket (503) is larger than the inner diameter of the sliding pressure boosting pipe (610b).

9. A straightening machine for straight seam welded pipes according to claim 7, characterized in that: The surface diameter of the strong wash tube inlet (503) is smaller than the inner diameter of the cold pipe inlet (307), and the strong wash tube inlet (503) is used in conjunction with the cold pipe inlet (307).

10. A straightening machine for straight seam welded pipes according to claim 2, characterized in that: The inner cavity of the straightening base (201a) is provided with a collection groove (201a-1), and the top of the straightening base (201a) and the position corresponding to the straightening shaft roller (201c) are provided with a collection port (201a-2).

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