Steel fiber-reinforced stainless steel composite pipe with inner lining, forming composite production line and its working method

Abstract

The present invention is applicable to the technical field of steel fiber belt lined stainless steel composite pipes, and provides a steel fiber belt lined stainless steel composite pipe, a forming composite production line and its working method, including a pipeline mechanism. The pipeline mechanism includes a PE inner pipe, and four steel fiber belts are spirally wound and coated on the outer side wall of the PE inner pipe. This device solves the problems that the gaps in the wire braided mesh affect the strength, the fixed-size trays are not compatible with different-width braided belts, and the winding edges are warped due to the bending of the pipeline. In this steel fiber belt lined stainless steel composite pipe, the steel fiber belt is a gapless strip material, and the external injection material compensates for the internal wire gaps to improve the strength. The auxiliary cylinder adjusts the gap between the first disc and the second disc to adapt to different-width steel fiber belts. The frame cooperates with the auxiliary mechanism, and three auxiliary points are set. The fixed points are combined with the sliding support to prevent the PE inner pipe from sagging. The U-shaped block adjusts the height to ensure that the PE inner pipe enters the winding assembly horizontally, preventing scratches and edge warping.

Description

Technical Field

[0001] The present invention relates to the technical field of steel fiber tape lined stainless steel composite pipes, and more specifically, it relates to steel fiber tape lined stainless steel composite pipes, forming composite production lines and their working methods. Background Art

[0002] The lined stainless steel composite pipe is a pipe made by combining PE material and stainless steel. Stainless steel has good corrosion resistance and can effectively resist the erosion of water, chemical substances, etc., ensuring pure water quality. At the same time, its inner wall is smooth, with small fluid resistance, which is beneficial to the transportation of fluids. The outer layer of PE material has good flexibility, impact resistance and low-temperature resistance, can adapt to different geological conditions and environmental changes, and is not easily broken due to external forces.

[0003] Currently, in the existing composite pipe structure, in order to further improve the strength, technicians innovatively embed a layer of steel wire braided mesh or steel wire braided tape in the middle of the PE material. And when the existing steel wire braided tape is wound, the steel tape is released by the rotation of the material tray, and then multiple material trays are tilted and rotated to complete the winding of the steel tape, and then processed by injection molding. After the processing is completed, the stainless steel pipe is inserted into the pipe interior.

[0004] However, the method of compounding the steel wire braided mesh or steel wire braided tape, although achieving the purpose of improving the pipe strength, there are still certain gaps in the steel wire braided mesh or braided tape, and the expected strength cannot be achieved. Moreover, the size of the material tray carrying the braided tape is fixed. If braided tapes of different widths are used, the material trays cannot be compatible, and the material trays need to be repeatedly disassembled and replaced. During winding, because the pipe will be bent, the steel tape will be warped during the winding process, reducing the strength of the pipe after the composite braided tape. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a steel fiber tape lined stainless steel composite pipe, a forming composite production line and its working method.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A steel fiber tape lined stainless steel composite pipe, including a pipe mechanism. The pipe mechanism includes a PE inner pipe, and four steel fiber tapes are spirally wound and coated around the outer side wall of the PE inner pipe, and the four steel fiber tapes are spliced with each other. The steel fiber tape is woven into a tape with steel wires and then forms a strip material with the PE material by injection molding.

[0007] A PE outer pipe is arranged outside the steel fiber tape. The PE inner pipe and the PE outer pipe are integrally formed, and a stainless steel pipe is inserted into the interior of the PE inner pipe.

[0008] By adopting the above technical solution, the steel fiber belt is a complete strip material without gaps. It not only increases the strength through the internal steel wires, but also compensates for the gaps between the steel wires by using the externally injection-molded material, further improving the strength of the pipeline.

[0009] The forming composite production line of the steel fiber belt-lined stainless steel composite pipe includes a base, a winding assembly installed on the top of the base, a primary PE pipe injection molding production line, a secondary PE pipe injection molding production line, and a sleeving production line. The winding assembly is located between the primary PE pipe injection molding production line and the secondary PE pipe injection molding production line.

[0010] The winding assembly includes a box body installed on the top of the base and a support plate arranged on one side of the box body. A ring body and a plurality of belt wheels are rotatably connected to the side of the support plate away from the box body. The ring body is located between the plurality of belt wheels and meshes with each of the belt wheels respectively. Four groups of disc mechanisms are equidistantly arranged around the side of the ring body away from the support plate, and a repair mechanism is installed on each group of disc mechanisms.

[0011] Guide holes are formed on the side walls of the box body and the support plate, and the guide holes correspond to the hole positions in the middle of the ring body. A conveying assembly is installed on the side of the box body away from the support plate. The conveying assembly includes two groups of first electric rollers and two groups of second electric rollers installed on the side wall of the box body, and the two groups of first electric rollers and the two groups of second electric rollers are arranged in a staggered manner.

[0012] A support assembly and an adjustment assembly are arranged on the side of the winding assembly away from the conveying assembly, and the adjustment assembly is located above the support assembly.

[0013] The present invention is further configured as: an auxiliary wheel is rotatably connected above the side of the support plate close to the ring body. A transmission belt is connected to the outer walls of the auxiliary wheel and two of the belt wheels in a driving manner, and the outer wall of the transmission belt is attached to the outer wall of the ring body. A servo motor is installed on the side of the support plate away from the ring body, and the output end of the servo motor is connected to one of the belt wheels driven by the transmission belt.

[0014] The present invention is further configured as: each group of disc mechanisms includes an assembly plate installed on the side wall of the ring body and an adjustment block rotatably connected to the side wall of the assembly plate. An adjusting rotary cylinder is installed on one side of the assembly plate and connected to the adjustment block. A first disc body is installed on the side of the adjustment block away from the assembly plate, and two auxiliary cylinders are symmetrically installed on the side wall of the first disc body. The piston rods of the two auxiliary cylinders penetrate through the side wall of the first disc body and are connected to a second disc body.

[0015] The present invention is further configured such that: the repair mechanism includes a mounting plate installed on the side wall of the corresponding adjustment block close to the center of the ring body. On one side of the mounting plate close to the first disc body, two auxiliary rollers are rotatably connected. A through groove is formed on the side wall of the mounting plate. A connecting rod is hinged inside the through groove. On the side of the mounting plate away from the auxiliary rollers, an adjusting cylinder is installed. The end of the piston rod of the adjusting cylinder is hinged to one end of the connecting rod. A track is connected to the outer side wall of the connecting rod.

[0016] The present invention is further configured such that: on one side of the track, a repair rotating cylinder is installed. The output end of the repair rotating cylinder is connected to a pressing plate. The pressing plate is hinged inside the track. On one side of the pressing plate close to the track, two wheel frames are symmetrically installed. Inside each wheel frame, a hinged plate is hinged. One end of the hinged plate is rotatably connected to a pressing wheel. The other end of the hinged plate is connected to a pressing rod. The pressing rod penetrates through the wheel frame. A spring is connected between the outer wall of the pressing rod and the side of the wheel frame away from the hinged plate. The spring is sleeved on the outside of the pressing rod.

[0017] By adopting the above technical solution, the auxiliary cylinder drives the second disc body to separate from the first disc body and the placing column. The spare steel fiber belt is directly sleeved onto the placing column through the gap between the second disc body and the placing column. Moreover, the gap between the first disc body and the second disc body can be adjusted according to the different widths of the steel fiber belt, greatly improving the functionality of the device.

[0018] After the steel fiber belt is released from between the first disc body and the second disc body, it first passes through the track and then adheres to the outer wall of the PE inner pipe. If the steel fiber belt warps, the adjusting cylinder pushes the connecting rod to swing. The connecting rod drives the track to swing. The track pulls the steel fiber belt to adjust the fitting angle, so that the warped steel fiber belt is pulled back into place, alleviating the warping condition of the steel fiber belt.

[0019] By setting the pressing plate, when the steel fiber belt is released, it passes through the inside of the track and under the pressing plate. When the steel fiber belt warps, the repair cylinder drives the pressing plate to swing, making the pressing wheel fit the surface of the steel fiber belt. At the same time, the pressing wheel moves in the opposite direction to buffer the spring pressure, ensuring continuous extrusion rather than complete compression of the steel fiber belt, guaranteeing that the steel fiber belt can be continuously released while being extruded. Subsequently, the adjusting cylinder pushes the connecting rod to swing. The connecting rod drives the track and the pressing plate to swing. The steel fiber belt clamped by the pressing plate and the track is forcibly pulled, so that the warped steel fiber belt is clamped and pulled back into place, avoiding the situation of the steel fiber belt being folded when directly adjusted by the track.

[0020] The present invention is further configured such that: the support assembly includes a fixed frame installed on the top of the base. On the top of the fixed frame, a frame is installed. The top of the frame is hinged with a limiting frame. A gap is provided between the frame and the limiting frame. An auxiliary mechanism is slidably connected to the top of the fixed frame. The auxiliary mechanism is located between the frame and the winding assembly.

[0021] The present invention is further configured such that: two guide rods are symmetrically installed on the top of the fixing frame, a slider is slidably connected to the outer side wall of each guide rod, the auxiliary mechanism is installed on the tops of the two sliders, a driving cylinder is installed on the top of the fixing frame, and the end of the piston rod of the driving cylinder is connected to the bottom of the auxiliary mechanism. The auxiliary mechanism includes an auxiliary cylinder installed on the tops of the two sliders, a tube body is rotatably connected inside the auxiliary cylinder, a driving motor is installed at the bottom of the auxiliary cylinder, a transmission mechanism is connected between the driving motor and the tube body, three connecting plates are equidistantly installed on the inner wall of the tube body, a triangular plate is connected between the three connecting plates, and a tube hole is formed in the middle of the triangular plate.

[0022] The present invention is further configured such that: the adjustment assembly includes two legs provided on both sides of the fixing frame, guide rails are installed on the tops of the two legs, an electric slide is slidably connected to the side wall of the guide rail, a lifting cylinder is vertically installed on the side wall of the electric slide, and a U-shaped block is installed at the bottom of the lifting cylinder.

[0023] By adopting the above technical solution, through the cooperation of the frame, the auxiliary mechanism and the U-shaped block of the adjustment assembly, three auxiliary points are set before the PE inner tube enters the winding assembly. The frame belongs to fixed-point support, and the auxiliary mechanism slides on the outer wall of the PE inner tube, so as to adjust the position of the auxiliary support, avoid the situation that the PE inner tube sags due to the influence of gravity. During the movement of the auxiliary mechanism, the height is adjusted at the fixed position of the PE inner tube by using the U-shaped block, ensuring that the PE inner tube remains horizontal before entering the auxiliary mechanism, facilitating the auxiliary support of the auxiliary mechanism, avoiding the situation that the PE inner tube is scratched when entering the triangular plate in a bent state. The adjusted PE inner tube can maintain horizontal spiral winding when entering the winding assembly, avoiding the situation that the steel fiber belt warps due to the bending problem of the PE inner tube itself.

[0024] The forming and compounding working method of the steel fiber belt lined stainless steel composite pipe uses the steel fiber belt lined stainless steel composite pipe forming and compounding production line as described above, and includes the following steps:

[0025] S1. First, the PE inner tube is injection molded by a PE pipe one-time injection molding production line, and then the produced PE inner tube is sequentially passed through the support assembly, the adjustment assembly, the ring body and the guiding holes opened on the side wall of the box body. The outer side wall of the PE inner tube is in contact with two groups of first electric rollers and second electric rollers. The two groups of first electric rollers and the two groups of second electric rollers cooperate to horizontally transport the PE inner tube. During the transportation process, the support assembly horizontally supports and guides the PE inner tube, and the adjustment assembly is used to limit and adjust the PE inner tube.

[0026] S2. After the PE inner tube passes through the support assembly, an external gluing device is used to glue the outer wall of the PE inner tube. Then, the ring body drives the four groups of tray mechanisms to rotate, and a steel fiber belt is released on each tray mechanism. The steel fiber belt is first conveyed to the repair mechanism, and the repair mechanism adjusts the position where the steel fiber belt has deviated in real time. After the adjustment is completed, the steel fiber belt adheres to the glued position on the outer wall of the PE inner tube.

[0027] S3. When the steel fiber belt on the tray mechanism is used up, the tray mechanism is controlled to open, and the spare steel fiber belt can be directly placed on the tray mechanism. Moreover, the tray mechanism can be adjusted according to the different widths of the steel fiber belt. After the placement is completed, the tray mechanism is continued to be used to release and helically wind and composite the steel fiber belt. After the steel fiber belt and the PE inner tube are composite, they are put into the PE secondary injection molding production line to inject the PE outer tube secondarily, so that the steel fiber belt is covered inside the PE outer tube. After the secondary injection molding is completed, the stainless steel tube is inserted into the inside of the steel fiber belt by using the sleeving production line, and finally a steel fiber belt lined stainless steel composite pipe is formed.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] (1) By setting the steel fiber belt, the steel fiber belt is a complete strip material without gaps. It not only increases the strength through the internal steel wires, but also compensates for the gaps between the steel wires by using the externally injection-molded material, further improving the strength of the pipeline.

[0030] (2) By setting the first disk body and the second disk body, the second disk body is driven by the auxiliary cylinder to separate from the first disk body and the placing column. The spare steel fiber belt is directly sleeved on the placing column through the gap between the second disk body and the placing column, and the gap between the first disk body and the second disk body can be adjusted according to the different widths of the steel fiber belt, greatly improving the functionality of the device.

[0031] (3) Through the cooperation of the frame, the auxiliary mechanism and the U-shaped block of the adjustment component, three auxiliary points are set before the PE inner tube enters the winding component. The frame belongs to the fixed-point support, and the auxiliary mechanism slides on the outer wall of the PE inner tube, so as to adjust the position of the auxiliary support, avoiding the situation that the PE inner tube sags due to the influence of gravity. During the movement of the auxiliary mechanism, the height is adjusted at the fixed position of the PE inner tube by using the U-shaped block to ensure that the PE inner tube remains horizontal before entering the auxiliary mechanism, facilitating the auxiliary support of the auxiliary mechanism, and avoiding the situation that the PE inner tube is scratched when entering the triangular plate in a bent state. The adjusted PE inner tube can maintain horizontal spiral winding when entering the winding component, avoiding the situation that the steel fiber belt warps due to the bending problem of the PE inner tube itself.

[0032] (4) By setting up the track, after the steel fiber belt is released between the first and second discs, it first passes through the track and then adheres to the outer wall of the PE inner pipe. When the steel fiber belt has a curled edge, the adjusting cylinder is used to push the connecting rod to swing, the connecting rod drives the track to swing, and the track pulls the steel fiber belt to adjust the adhesion angle, so that the curled steel fiber belt is pulled back into place, alleviating the curled situation of the steel fiber belt.

[0033] (5) By setting up the pressure plate, when the steel fiber belt is released, it passes through the inside of the track and under the pressure plate. When the steel fiber belt has a curled edge, the repair cylinder drives the pressure plate to swing, so that the pressure wheel adheres to the surface of the steel fiber belt. At the same time, the pressure wheel moves in the opposite direction to buffer the spring pressure, ensuring continuous extrusion rather than complete compression of the steel fiber belt, guaranteeing that the steel fiber belt can be continuously released while being extruded. Subsequently, the adjusting cylinder is used to push the connecting rod to swing, the connecting rod drives the track and the pressure plate to swing, and the steel fiber belt clamped by the pressure plate and the track is forcibly pulled, so that the curled steel fiber belt is clamped and pulled back into place, avoiding the situation of the steel fiber belt being folded caused by directly adjusting with the track. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a partial structural schematic diagram of the forming composite production line of the present invention.

[0035] Figure 2 It is a structural schematic diagram of the support component in the present invention.

[0036] Figure 3 It is a structural schematic diagram of the auxiliary mechanism in the present invention.

[0037] Figure 4 It is a structural schematic diagram of the adjustment component in the present invention.

[0038] Figure 5 It is a structural schematic diagram of the U-shaped block in the present invention.

[0039] Figure 6 It is a structural schematic diagram of the connection between the base, the winding component and the conveying component in the present invention.

[0040] Figure 7 It is Figure 6 the rear view structural schematic diagram of

[0041] Figure 8 It is a structural schematic diagram of the connection between the ring body and the material tray mechanism in the present invention.

[0042] Figure 9 It is a structural schematic diagram of the connection between the material tray mechanism and the repair mechanism in the present invention.

[0043] Figure 10 It is Figure 9 the partial structural schematic diagram of

[0044] Figure 11Schematic diagram of the cooperation structure of the pressure plate and the pressure wheel in the present invention.

[0045] Figure 12 Schematic diagram of the separated state of the first disc body and the second disc body in the present invention.

[0046] Figure 13 Schematic diagram of the pipeline mechanism structure in the present invention.

[0047] Figure 14 Flow chart of the forming composite production line in the present invention.

[0048] Explanation of reference numerals: 1. Base;

[0049] 2. Winding assembly; 21. Box body; 22. Support plate; 23. Ring body; 24. Reel mechanism; 241. Assembly plate; 242. Adjusting block; 243. First disc body; 244. Second disc body; 245. Auxiliary cylinder; 246. Auxiliary roller;

[0050] 25. Belt pulley; 26. Servo motor; 27. Auxiliary wheel; 28. Transmission belt; 29. Repair mechanism; 291. Mounting plate; 292. Adjusting cylinder; 293. Connecting rod; 294. Through groove; 295. Track; 296. Repair rotating cylinder; 297. Pressure plate; 298. Pressure wheel; 299. Wheel frame; 2901. Hinge plate; 2902. Spring;

[0051] 3. Conveying assembly; 31. First electric roller; 32. Second electric roller;

[0052] 4. Support assembly; 41. Fixed frame; 42. Guide rod; 43. Slide block; 44. Driving cylinder; 45. Frame; 46. Limiting frame; 47. Auxiliary mechanism; 471. Auxiliary cylinder; 472. Driving motor; 473. Transmission mechanism; 474. Pipe body; 475. Connecting plate; 476. Triangular plate;

[0053] 5. Adjusting assembly; 51. Leg; 52. Guide rail; 53. Electric slide table; 54. Lifting cylinder; 55. U-shaped block;

[0054] 6. Pipeline mechanism; 61. PE inner pipe; 62. Steel fiber belt; 63. PE outer pipe; 64. Stainless steel pipe. Detailed implementation manners

[0055] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0056] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0057] Please refer to Figures 1 - 14 , the present invention provides the following technical solutions:

[0058] Example 1, refer to Figure 13 , the steel fiber belt lined stainless steel composite pipe, including a pipe mechanism 6, the pipe mechanism 6 includes a PE inner pipe 61, and four steel fiber belts 62 are spirally wound and coated on the outer side wall of the PE inner pipe 61, and the four steel fiber belts 62 are spliced with each other. The steel fiber belt 62 is woven into a belt with steel wires and then formed into a strip material by injection molding with PE material. A PE outer pipe 63 is arranged outside the steel fiber belt 62, and the PE inner pipe 61 and the PE outer pipe 63 are integrally formed. A stainless steel pipe 64 is inserted into the PE inner pipe 61.

[0059] Compared with the existing method of lining with a steel wire braided mesh or a steel wire braided belt, the steel fiber belt 62 is a complete strip material without gaps. It not only increases the strength through the internal steel wires, but also compensates for the gaps between the steel wires by using the externally injection-molded material, further improving the strength of the pipe.

[0060] Refer to Figure 1 and Figure 14 , the steel fiber belt lined stainless steel composite pipe forming and compounding production line, including a base 1, a winding assembly 2 installed on the top of the base 1, a PE pipe primary injection molding production line, a PE pipe secondary injection molding production line, and a sleeving production line. The winding assembly 2 is located between the PE pipe primary injection molding production line and the PE pipe secondary injection molding production line.

[0061] First, the PE inner pipe 61 is injection-molded through the PE pipe primary injection molding production line, and then the produced PE inner pipe 61 is wound with the steel fiber belt 62 by using the winding assembly 2. After the steel fiber belt 62 and the PE inner pipe 61 are compounded, they are put into the PE secondary injection molding production line for secondary injection molding of the PE outer pipe 63, so that the steel fiber belt 62 is coated inside the PE outer pipe 63. After the secondary injection molding is completed, the stainless steel pipe 64 is inserted into the inside of the steel fiber belt 62 by using the sleeving production line, and finally the steel fiber belt lined stainless steel composite pipe is formed.

[0062] Refer to Figure 1 and Figure 6 , the specific structure of the winding assembly 2 is as follows:

[0063] The winding assembly 2 includes a box body 21 installed on the top of the base 1 and a support plate 22 arranged on one side of the box body 21. A ring body 23 and a plurality of belt pulleys 25 are rotatably connected to the side of the support plate 22 far from the box body 21. The ring body 23 is located between the plurality of belt pulleys 25, and the ring body 23 is meshed with the plurality of belt pulleys 25 respectively. An auxiliary pulley 27 is rotatably connected above the side of the support plate 22 close to the ring body 23. A transmission belt 28 is connected to the outer walls of two of the belt pulleys 25 and the auxiliary pulley 27. The outer wall of the transmission belt 28 is attached to the outer wall of the ring body 23. A servo motor 26 is installed on the side of the support plate 22 far from the ring body 23. The output end of the servo motor 26 is connected to one of the belt pulleys 25 driven by the transmission belt 28. Guide holes are provided on the side walls of the box body 21 and the support plate 22, and the guide holes correspond to the holes in the middle of the ring body 23. Four groups of tray mechanisms 24 are equidistantly arranged around the side of the ring body 23 far from the support plate 22.

[0064] The produced PE inner pipe 61 passes through the ring body 23 and the inside of the guide hole in sequence. The servo motor 26 is used to drive the corresponding belt pulley 25 to rotate. Since the transmission belt 28 is supported by the auxiliary pulley 27 and the plurality of belt pulleys 25, when one of the belt pulleys 25 rotates, the transmission belt 28 is driven to transmit. The transmission belt 28 drives the ring body 23 to rotate through friction. When the ring body 23 rotates, it drives the four groups of tray mechanisms 24 to move around. The tray mechanisms 24 are placed with wound steel fiber belts 62, and after the tray mechanisms 24 release the steel fiber belts 62, they are wound around the outer wall of the PE inner pipe 61.

[0065] Refer to Figure 7 , a conveying assembly 3 is installed on the side of the box body 21 far from the support plate 22. During the process of winding the steel fiber belt 62 on the PE inner pipe 61, the conveying assembly 3 continuously conveys the PE inner pipe 61, so as to achieve the purpose of continuously winding the steel fiber belt 62.

[0066] Refer to Figure 7 , the conveying assembly 3 includes two groups of first electric rollers 31 and two groups of second electric rollers 32 installed on the side wall of the box body 21. The two groups of first electric rollers 31 and the two groups of second electric rollers 32 are arranged in a staggered manner. The PE inner pipe 61 passes through the ring body 23 and the guide hole and extends to the position where the two groups of first electric rollers 31 and the two groups of second electric rollers 32 are staggered. The two groups of first electric rollers 31 and the two groups of second electric rollers 32 are started. The rotation directions of the two groups of first electric rollers 31 are opposite, and the rotation directions of the two groups of second electric rollers 32 are opposite. The PE inner pipe 61 is conveyed forward through the cooperation of the two groups of first electric rollers 31 and the two groups of second electric rollers 32. During the conveying process, the tray mechanisms 24 continuously release the steel fiber belts 62, and thus the continuous winding of the steel fiber belt 62 is completed.

[0067] Refer to Figure 8 and Figure 9, each set of coil mechanism 24 includes an assembly plate 241 installed on the side wall of the ring body 23 and an adjustment block 242 rotatably connected to the side wall of the assembly plate 241. An adjusting rotary cylinder is installed on one side of the assembly plate 241 and is connected to the adjustment block 242. A first disk body 243 is installed on the side of the adjustment block 242 away from the assembly plate 241. A second disk body 244 is arranged on one side of the first disk body 243. The adjusting rotary cylinder is used to drive the adjustment block 242, the first disk body 243 and the second disk body 244 to swing, thereby adjusting the release angle of the steel fiber belt 62. That is, when the steel fiber belt 62 is wound, the first disk body 243 and the second disk body 244 are in an inclined state, so that the steel fiber belt 62 can be spirally wound onto the outer wall of the PE inner pipe 61. The four groups of coil mechanisms 24 cooperate to complete the purpose of uniform winding and compounding. After the compounding is completed, the PE outer pipe 63 is secondarily injected through the PE secondary injection production line, and then the stainless steel pipe 64 is inserted into the inside of the steel fiber belt 62 by using the sleeving production line, and finally a steel fiber belt-lined stainless steel composite pipe is formed.

[0068] Embodiment 2. The size of the existing coil for carrying the woven belt is fixed. If woven belts of different widths are used, the coil cannot be compatible, and the coil needs to be repeatedly disassembled and replaced. During winding, since the pipeline will be bent, the steel belt will be warped during the winding process, reducing the strength of the pipeline after the composite woven belt.

[0069] Therefore, two auxiliary cylinders 245 are symmetrically installed on the side wall of the first disk body 243. The piston rods of the two auxiliary cylinders 245 penetrate the side wall of the first disk body 243 and are connected to the second disk body 244. When the steel fiber belt 62 on the coil mechanism 24 is used up, the second disk body 244 is driven by the auxiliary cylinder 245 to separate from the first disk body 243 and the placement column on the first disk body 243. The spare steel fiber belt 62 is directly sleeved onto the placement column through the gap between the second disk body 244 and the placement column, and the gap between the first disk body 243 and the second disk body 244 can be adjusted according to the different widths of the steel fiber belt 62, greatly improving the functionality of the device.

[0070] If the steel fiber belt 62 of different widths is replaced, only the adjusting rotary cylinder needs to be used to drive the adjustment block 242, the first disk body 243 and the second disk body 244 to swing, so that the replaced steel fiber belt 62 can adapt to the spiral winding angle and position. And during the winding process, once the steel fiber belt 62 warps, the winding angle and position of the steel fiber belt 62 can also be adjusted to prevent subsequent warping.

[0071] To solve the problem that the PE inner tube 61 itself has a slight bend due to its length and the center of gravity, and there may still be a situation where the steel fiber belt 62 warps on the outside of the PE inner tube 61, a support assembly 4 and an adjustment assembly 5 are provided on the side of the winding assembly 2 away from the conveying assembly 3. The adjustment assembly 5 is located above the support assembly 4. Before the PE inner tube 61 is conveyed to the position of the winding assembly 2, the support assembly 4 horizontally supports and guides the PE inner tube 61, and the adjustment assembly 5 is used to limit and adjust the PE inner tube 61. The specific structure of the support assembly 4 is as follows:

[0072] Refer to Figures 1 - 3 , the support assembly 4 includes a fixed frame 41 installed on the top of the base 1. A frame 45 is installed on the top of the fixed frame 41. A limiting frame 46 is hinged to the top of the frame 45. There is a gap between the frame 45 and the limiting frame 46. When the PE inner tube 61 is conveyed, it is first placed on the top of the frame 45, so that the PE inner tube 61 is supported assistantly before entering the winding assembly 2, and the limiting frame 46 swings and presses above the PE inner tube 61 and the frame 45, thereby limiting the PE inner tube 61.

[0073] Refer to Figures 1 - 3 , a sliding connection is provided between the top of the fixed frame 41 and an auxiliary mechanism 47. The auxiliary mechanism 47 is located between the frame 45 and the winding assembly 2. The auxiliary mechanism 47 is used for auxiliary adjustment between the frame 45 and the winding assembly 2 to ensure that the PE inner tube 61 remains horizontal before entering the winding assembly 2.

[0074] Refer to Figures 1 - 3 , in this embodiment, two guide rods 42 are symmetrically installed on the top of the fixed frame 41. A slider 43 is slidably connected to the outer side wall of each guide rod 42. The auxiliary mechanism 47 is installed on the tops of the two sliders 43. A driving cylinder 44 is installed on the top of the fixed frame 41. The end of the piston rod of the driving cylinder 44 is connected to the bottom of the auxiliary mechanism 47. The driving cylinder 44 is used to push the auxiliary mechanism 47 to slide above the fixed frame 41, and the auxiliary mechanism 47 is limited by the cooperation of the slider 43 and the guide rod 42. By moving the auxiliary mechanism 47, the auxiliary adjustment position of the auxiliary mechanism 47 for the PE inner tube 61 can be adjusted.

[0075] Refer to Figures 1 - 3, the auxiliary mechanism 47 includes an auxiliary cylinder 471 installed on the tops of two sliders 43. A pipe body 474 is rotatably connected inside the auxiliary cylinder 471. A driving motor 472 is installed at the bottom of the auxiliary cylinder 471. A transmission mechanism 473 is connected between the driving motor 472 and the pipe body 474. Three connecting plates 475 are equidistantly installed on the inner wall of the pipe body 474. A triangular plate 476 is connected between the three connecting plates 475. A pipe hole is formed in the middle of the triangular plate 476. The PE inner pipe 61 passes through the pipe hole in the middle of the triangular plate 476. When the whole auxiliary mechanism 47 moves, the triangular plate 476 slides on the outer wall of the PE inner pipe 61 to adjust the supporting position of the PE inner pipe 61, ensuring that the PE inner pipe 61 is in a horizontal state when it reaches the position of the ring body 23 through the triangular plate 476. And when the triangular plate 476 adjusts the PE inner pipe 61, the driving motor 472 drives the pipe body 474 to rotate through the transmission mechanism 473. The pipe body 474 drives the connecting plate 475 to displace and drives the triangular plate 476 to rotate, so that the triangular plate 476 rotates on the outer wall of the PE inner pipe 61, preventing the situation that the PE inner pipe 61 is scratched when the triangular plate 476 directly slides horizontally.

[0076] Refer to Figure 4 and Figure 5 , the adjustment assembly 5 includes two legs 51 arranged on both sides of the fixed frame 41. Guide rails 52 are installed on the tops of the two legs 51. An electric slide 53 is slidably connected to the side wall of the guide rail 52. A lifting cylinder 54 is vertically installed on the side wall of the electric slide 53. A U-shaped block 55 is installed at the bottom of the lifting cylinder 54. Before the PE inner pipe 61 passes through the frame 45 and reaches the triangular plate 476, the lifting cylinder 54 is used to drive the U-shaped block 55 to move up and down to adjust the U-shaped block 55 to a position with the same height as the PE inner pipe 61. Then the electric slide 53 slides on the side wall of the guide rail 52, and then the U-shaped block 55 is stuck on the outer wall of the PE inner pipe 61, so that the PE inner pipe 61 is assisted and adjusted by the U-shaped block 55 before reaching the triangular plate 476, preventing the situation that the PE inner pipe 61 is scratched when it enters the triangular plate 476 in a bent state.

[0077] Specifically, through the cooperation of the frame 45, the auxiliary mechanism 47 and the U-shaped block 55 of the adjustment component 5, three auxiliary points are set for the PE inner pipe 61 before it enters the winding component 2. The frame 45 belongs to the fixed-point support, while the auxiliary mechanism 47 slides on the outer wall of the PE inner pipe 61, so as to adjust the position of the auxiliary support, avoiding the situation that the PE inner pipe 61 sags due to the influence of gravity. During the movement of the auxiliary mechanism 47, the U-shaped block 55 is used to adjust the height at the fixed position of the PE inner pipe 61, ensuring that the PE inner pipe 61 is horizontal before entering the auxiliary mechanism 47, facilitating the auxiliary support of the auxiliary mechanism 47, and avoiding the situation that the PE inner pipe 61 is scratched when entering the triangular plate 476 in a bent state. The adjusted PE inner pipe 61 can maintain horizontal spiral winding when entering the winding component 2, avoiding the situation that the steel fiber belt 62 warps due to the bending problem of the PE inner pipe 61 itself.

[0078] In the third embodiment, even if the fitting angle and the release angle of the steel fiber belt 62 are adjusted so that the steel fiber belt 62 can be non-warped outside the PE inner pipe 61, once the warping occurs, the above method can only prevent the warping problem at the un-fitted position, but the situation of the already warped part cannot be handled.

[0079] Therefore, a repair mechanism 29 is installed on each material tray mechanism 24. Before the steel fiber belt 62 is wound on the outer wall of the PE inner pipe 61, it is first conveyed to the repair mechanism 29, and the repair mechanism 29 adjusts the already offset position of the steel fiber belt 62 in real time. After the adjustment is completed, the steel fiber belt 62 is attached to the position where glue has been applied on the outer wall of the PE inner pipe 61. The specific structure of the repair mechanism 29 is as follows:

[0080] Refer to Figures 9 - 11 As shown in the figure, the repair mechanism 29 includes a mounting plate 291 installed on the side wall of the corresponding adjustment block 242 close to the center of the ring body 23. Two auxiliary rollers 246 are rotatably connected to one side of the mounting plate 291 close to the first disc body 243. A through groove 294 is formed on the side wall of the mounting plate 291, and a connecting rod 293 is hinged inside the through groove 294. An adjusting cylinder 292 is installed on the side of the mounting plate 291 away from the auxiliary rollers 246. The end of the piston rod of the adjusting cylinder 292 is hinged to one end of the connecting rod 293. A track 295 is connected to the outer side wall of the connecting rod 293. After the steel fiber belt 62 is released from between the first disc body 243 and the second disc body 244, it first passes through the track 295 and then adheres to the outer wall of the PE inner pipe 61. If the steel fiber belt 62 warps, the adjusting cylinder 292 pushes the connecting rod 293 to swing, the connecting rod 293 drives the track 295 to swing, and the track 295 pulls the steel fiber belt 62 to adjust the fitting angle, so that the already warped steel fiber belt 62 is pulled back into place.

[0081] Refer to Figures 9 - 11, in this embodiment, a repair rotating cylinder 296 is installed on one side of the track 295. The output end of the repair rotating cylinder 296 is connected to a pressing plate 297. The pressing plate 297 is hinged inside the track 295. Two wheel brackets 299 are symmetrically installed on the side of the pressing plate 297 close to the track 295. An articulated plate 2901 is hinged inside each wheel bracket 299. One end of the articulated plate 2901 is rotatably connected to a pressing wheel 298. The other end of the articulated plate 2901 is connected to a pressing rod. The pressing rod penetrates through the wheel bracket 299. A spring 2902 is connected between the outer wall of the pressing rod and the side of the wheel bracket 299 away from the articulated plate 2901. The spring 2902 is sleeved outside the pressing rod. When the steel fiber belt 62 is released, it not only passes through the inside of the track 295 but also passes under the pressing plate 297. Before the track 295 swings and adjusts, the repair rotating cylinder 296 quickly drives the pressing plate 297 to swing, causing the pressing plate 297 to approach the track 295. The two pressing wheels 298 are attached to the surface of the steel fiber belt 62 inside the track 295. At this time, the pressing wheels 298 move in the direction close to the pressing plate 297 in the reverse direction. The pressing wheels 298 drive one end of the articulated plate 2901 to move synchronously, and the other end of the articulated plate 2901 pulls the pressing rod to move downward. At this time, the spring 2902 is compressed. At this time, the pressing wheels 298 are buffered, and the pressing wheels 298 can continuously press the steel fiber belt 62 instead of completely pressing it tightly, ensuring that the steel fiber belt 62 can be continuously released while being pressed. Subsequently, the adjusting cylinder 292 pushes the connecting rod 293 to swing. The connecting rod 293 drives the track 295 and the pressing plate 297 to swing. The steel fiber belt 62 clamped by the pressing plate 297 and the track 295 is forcibly pulled, so that the steel fiber belt 62 with warped edges is clamped and pulled back into place, avoiding the situation of folding the steel fiber belt 62 caused by directly adjusting with the track 295. After the reset is completed, the pressing plate 297 is separated from the track 295, and the angles of the pressing plate 297 and the track 295 are reset. The rotation speed of the ring body 23 returns to normal, and the work of helically winding the composite steel fiber belt 62 continues.

[0082] Embodiment 4, a forming and composite working method for a steel fiber belt-lined stainless steel composite pipe, using the above-mentioned steel fiber belt-lined stainless steel composite pipe forming and composite production line, includes the following steps:

[0083] S1. First, the PE inner pipe 61 is injection-molded through a PE pipe one-time injection production line. Then, the produced PE inner pipe 61 is sequentially passed through the support assembly 4, the adjustment assembly 5, the ring body 23, and the guiding holes opened on the side wall of the box body 21. The outer side wall of the PE inner pipe 61 is in contact with two groups of first electric rollers 31 and second electric rollers 32. The two groups of first electric rollers 31 and the two groups of second electric rollers 32 cooperate to horizontally convey the PE inner pipe 61. During the conveying process, the support assembly 4 horizontally supports and guides the PE inner pipe 61, and the adjustment assembly 5 is used to limit and adjust the PE inner pipe 61.

[0084] The more specific steps of S1 are:

[0085] S11. Place the PE inner tube 61 on the top of the frame 45, and limit the PE inner tube 61 through the limiting frame 46. The PE inner tube 61 passes through the tube hole in the middle of the triangular plate 476. Then, the PE inner tube 61 passes through the inside of the guiding holes formed in the side walls of the annular body 23 and the box body 21. The outer side wall of the PE inner tube 61 is in contact with two groups of first electric rollers 31 and second electric rollers 32. The two groups of first electric rollers 31 and the two groups of second electric rollers 32 cooperate to horizontally convey the PE inner tube 61.

[0086]

[0085] S12. During the conveying process, the PE inner tube 61 is assisted in supporting and guiding by the frame 45 and the limiting frame 46. Moreover, the driving cylinder 44 is used to push the auxiliary mechanism 47 to move horizontally. The triangular plate 476 slides on the outer wall of the PE inner tube 61 to adjust the supporting position of the PE inner tube 61, ensuring that the PE inner tube 61 is in a horizontal state when it passes through the triangular plate 476 and reaches the position of the annular body 23. When the triangular plate 476 adjusts the PE inner tube 61, the driving motor 472 drives the tube body 474 to rotate through the transmission mechanism 473. The tube body 474 drives the connecting plate 475 to displace and drives the triangular plate 476 to rotate, so that the triangular plate 476 rotates on the outer wall of the PE inner tube 61, preventing the situation that the PE inner tube 61 is scratched when the triangular plate 476 directly slides horizontally.

[0087] S13. Before the PE inner tube 61 passes through the frame 45 and reaches the triangular plate 476, the lifting cylinder 54 drives the U-shaped block 55 to move up and down, and adjusts the U-shaped block 55 to a position with the same height as the PE inner tube 61. Then, the electric sliding table 53 slides on the side wall of the guide rail 52, and then the U-shaped block 55 is clamped on the outer wall of the PE inner tube 61, so that the PE inner tube 61 is assisted in adjustment by the U-shaped block 55 before reaching the triangular plate 476, preventing the situation that the PE inner tube 61 is scratched when it enters the triangular plate 476 in a bent state.

[0088]

[0086] S2. After the PE inner tube 61 passes through the support assembly 4, the outer wall of the PE inner tube 61 is coated with glue by using an external glue coating device. Then, the annular body 23 drives the four groups of tray mechanisms 24 to rotate. A steel fiber belt 62 is released on each group of tray mechanisms 24. The steel fiber belt 62 is first conveyed to the repair mechanism 29. The repair mechanism 29 adjusts the position where the steel fiber belt 62 has deviated in real time. After the adjustment is completed, the steel fiber belt 62 is attached to the position on the outer wall of the PE inner tube 61 where the glue has been coated.

[0089] The more specific steps of S2 are as follows:

[0090] S21. After the PE inner tube 61 passes through the triangular plate 476, an external gluing device is used to apply glue to the outer wall of the PE inner tube 61. The steel fiber tape 62 is first conveyed and guided through two auxiliary rollers 246, then passes between the pressing plate 297 and the track 295, and finally adheres to the outer wall of the PE inner tube 61. The ring body 23 drives the four groups of tray mechanisms 24 to rotate, and the steel fiber tape 62 on each group of tray mechanisms 24 is pulled and released to complete the fitting.

[0091] S22. During the fitting process, in order to achieve the purpose of simultaneous fitting of the four steel fiber tapes 62, the release direction of the steel fiber tape 62 is adjusted to be an inclined direction, and the four steel fiber tapes 62 are spirally wound and fitted.

[0092] S23. If one of the steel fiber tapes 62 warps during fitting, the overall rotation speed of the ring body 23 is immediately controlled to slow down, and the corresponding adjustment block 242 is driven to swing by adjusting the rotation cylinder, and the adjustment block 242 drives the corresponding first disc body 243 and the second disc body 244 to swing, thereby adjusting the release direction of the corresponding steel fiber tape 62 to prevent the warping from continuing.

[0093] S24. Since the steel fiber tape 62 first passes between the pressing plate 297 and the track 295 during release, the repair rotation cylinder 296 is quickly driven to drive the pressing plate 297 to swing, causing the pressing plate 297 to approach the track 295. The two pressure wheels 298 are attached to the surface of the steel fiber tape 62 inside the track 295 to ensure that the steel fiber tape 62 can be continuously released while being squeezed. Subsequently, the adjusting cylinder 292 pushes the connecting rod 293 to swing, and the connecting rod 293 drives the track 295 and the pressing plate 297 to swing. The steel fiber tape 62 clamped by the pressing plate 297 and the track 295 is forcibly pulled, so that the warped steel fiber tape 62 is pulled back into place. After the reset is completed, the pressing plate 297 is separated from the track 295, the angles of the pressing plate 297 and the track 295 are reset, and the rotation speed of the ring body 23 returns to normal, and the work of spirally winding and compounding the steel fiber tape 62 continues.

[0094] S3. When the steel fiber tape 62 on the tray mechanism 24 is used up, the tray mechanism 24 is controlled to open, and the spare steel fiber tape 62 can be directly placed on the tray mechanism 24. Moreover, the tray mechanism 24 can be adjusted according to the different widths of the steel fiber tape 62. After the placement is completed, the tray mechanism 24 is continued to be used to release the steel fiber tape 62 for spiral winding and compounding. After the steel fiber tape 62 and the PE inner tube 61 are compounded, they are put into the PE secondary injection molding production line to inject the PE outer tube 63 for the second time, so that the steel fiber tape 62 is coated inside the PE outer tube 63. After the secondary injection molding is completed, the stainless steel tube 64 is inserted into the inside of the steel fiber tape 62 by using the sleeving production line, and finally a steel fiber tape-lined stainless steel composite pipe is formed.

[0095] The more specific steps of S3 are:

[0096] S31. After the steel fiber belt 62 on the tray mechanism 24 is used up, the auxiliary cylinder 245 is used to drive the second disk body 244 to separate from the placement posts on the first disk body 243 and the first disk body 243. The spare steel fiber belt 62 is directly sleeved onto the placement posts through the gap between the second disk body 244 and the placement posts. Moreover, the first disk body 243 and the second disk body 244 can adjust the gap according to the different widths of the steel fiber belt 62. After the placement is completed, the tray mechanism 24 is continued to be used to release the steel fiber belt 62 for spiral winding and compounding.

[0097] S32. After the steel fiber belt 62 and the PE inner tube 61 are compounded, they are put into the PE secondary injection molding production line to perform secondary injection molding of the PE outer tube 63, so that the steel fiber belt 62 is coated inside the PE outer tube 63. After the secondary injection molding is completed, the stainless steel tube 64 is inserted into the inside of the steel fiber belt 62 by using the sleeving production line, and finally a steel fiber belt-lined stainless steel composite pipe is formed.

[0098] Obviously, the described embodiments above are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

Claims

1. The forming composite production line of the steel fiber belt-lined stainless steel composite pipe is characterized in that: It includes a base (1), a winding assembly (2) installed on the top of the base (1), a primary injection molding production line for PE pipes, a secondary injection molding production line for PE pipes, a set production line, and a pipeline mechanism (6). The winding assembly (2) is located between the primary injection molding production line and the secondary injection molding production line for PE pipes; The pipeline mechanism (6) includes a PE inner pipe (61). Four steel fiber belts (62) are spirally wound and coated around the outer side wall of the PE inner pipe (61), and the four steel fiber belts (62) are spliced with each other. The steel fiber belt (62) is woven into a belt with steel wires and then injected with PE material to form a strip material; A PE outer pipe (63) is arranged outside the steel fiber belt (62). The PE inner pipe (61) and the PE outer pipe (63) are integrally formed. A stainless steel pipe (64) is inserted into the PE inner pipe (61); The winding assembly (2) includes a box body (21) installed on the top of the base (1) and a support plate (22) arranged on one side of the box body (21). A ring body (23) and a plurality of belt pulleys (25) are rotatably connected to the side of the support plate (22) away from the box body (21). The ring body (23) is located between the plurality of belt pulleys (25). The ring body (23) is meshed with the plurality of belt pulleys (25) respectively. Four groups of tray mechanisms (24) are equidistantly installed around the side of the ring body (23) away from the support plate (22). A repair mechanism (29) is installed on each tray mechanism (24); Guide holes are opened on the side wall of the box body (21) and the side wall of the support plate (22). The guide holes correspond to the hole positions in the middle of the ring body (23). A conveying assembly (3) is installed on the side of the box body (21) away from the support plate (22). The conveying assembly (3) includes two groups of first electric rollers (31) and two groups of second electric rollers (32) installed on the side wall of the box body (21). The two groups of first electric rollers (31) and the two groups of second electric rollers (32) are arranged in a staggered manner; A support assembly (4) and an adjustment assembly (5) are arranged on the side of the winding assembly (2) away from the conveying assembly (3). The adjustment assembly (5) is located above the support assembly (4); Each tray mechanism (24) includes an assembly plate (241) installed on the side wall of the ring body (23) and an adjustment block (242) rotatably connected to the side wall of the assembly plate (241). An adjustment rotary cylinder is installed on one side of the assembly plate (241). The adjustment rotary cylinder is connected to the adjustment block (242). A first disk body (243) is installed on the side of the adjustment block (242) away from the assembly plate (241). Two auxiliary cylinders (245) are symmetrically installed on the side wall of the first disk body (243). The piston rods of the two auxiliary cylinders (245) penetrate the side wall of the first disk body (243) and are connected to a second disk body (244); The repair mechanism (29) includes a mounting plate (291) installed on the side wall of the corresponding adjustment block (242) close to the center of the ring body (23). On the side of the mounting plate (291) close to the first disc body (243), two auxiliary rollers (246) are rotatably connected. A through groove (294) is formed on the side wall of the mounting plate (291). A connecting rod (293) is hinged inside the through groove (294). On the side of the mounting plate (291) away from the auxiliary rollers (246), an adjusting cylinder (292) is installed. The end of the piston rod of the adjusting cylinder (292) is hinged to one end of the connecting rod (293). A track (295) is connected to the outer side wall of the connecting rod (293). A repair rotating cylinder (296) is installed on one side of the track (295). The output end of the repair rotating cylinder (296) is connected to a pressing plate (297). The pressing plate (297) is hinged inside the track (295). On the side of the pressing plate (297) close to the track (295), two wheel brackets (299) are symmetrically installed. Inside each wheel bracket (299), a hinge plate (2901) is hinged. One end of the hinge plate (2901) is rotatably connected to a pressing wheel (298). The other end of the hinge plate (2901) is connected to a pressing rod. The pressing rod is arranged through the wheel bracket (299). A spring (2902) is connected between the outer wall of the pressing rod and the side of the wheel bracket (299) away from the hinge plate (2901). The spring (2902) is sleeved on the outside of the pressing rod.

2. The forming composite production line of the steel fiber belt-lined stainless steel composite pipe according to claim 1, characterized in that: An auxiliary wheel (27) is rotatably connected above the side of the support plate (22) close to the ring body (23). A transmission belt (28) is connected to the outer walls of the auxiliary wheel (27) and two of the belt pulleys (25). The outer wall of the transmission belt (28) is in contact with the outer wall of the ring body (23). A servo motor (26) is installed on the side of the support plate (22) away from the ring body (23). The output end of the servo motor (26) is connected to one of the belt pulleys (25) driven by the transmission belt (28).

3. The forming and composite production line of the steel fiber belt-lined stainless steel composite pipe according to claim 1, wherein: The support assembly (4) includes a fixed frame (41) installed on the top of the base (1). A frame (45) is installed on the top of the fixed frame (41). A limit frame (46) is hinged to the top of the frame (45). A gap is provided between the frame (45) and the limit frame (46). An auxiliary mechanism (47) is slidably connected to the top of the fixed frame (41). The auxiliary mechanism (47) is located between the frame (45) and the winding assembly (2).

4. The steel fiber belt-lined stainless steel composite pipe forming composite production line according to claim 3, wherein: Two guide rods (42) are symmetrically installed at the top of the fixing frame (41). A slider (43) is slidably connected to the outer wall of each guide rod (42). The auxiliary mechanism (47) is installed at the top of the two sliders (43). A driving cylinder (44) is installed at the top of the fixing frame (41). The end of the piston rod of the driving cylinder (44) is connected to the bottom of the auxiliary mechanism (47). The auxiliary mechanism (47) includes an auxiliary cylinder (471) installed at the top of the two sliders (43). A pipe body (474) is rotatably connected inside the auxiliary cylinder (471). A driving motor (472) is installed at the bottom of the auxiliary cylinder (471). A transmission mechanism (473) is connected between the driving motor (472) and the pipe body (474). Three connecting plates (475) are equidistantly installed on the inner wall of the pipe body (474). A triangular plate (476) is connected between the three connecting plates (475). A pipe hole is formed in the middle of the triangular plate (476).

5. The forming composite production line of the steel fiber belt-lined stainless steel composite pipe according to claim 4, characterized in that: The adjustment assembly (5) includes two legs (51) arranged on both sides of the fixing frame (41). A guide rail (52) is installed at the top of the two legs (51). An electric slide (53) is slidably connected to the side wall of the guide rail (52). A lifting cylinder (54) is vertically installed on the side wall of the electric slide (53). A U-shaped block (55) is installed at the bottom of the lifting cylinder (54).

6. Forming and compounding working method for steel fiber belt lined stainless steel composite pipe, using the steel fiber belt lined stainless steel composite pipe forming and compounding production line as described in any one of claims 2-5, characterized in that, It includes the following steps: S1. First, the PE inner pipe (61) is injection-molded by a PE pipe one-time injection production line. Then, the produced PE inner pipe (61) is sequentially passed through the support assembly (4), the adjustment assembly (5), the ring body (23), and the guiding holes formed in the side wall of the box body (21). The outer wall of the PE inner pipe (61) is in contact with the two groups of first electric rollers (31) and the second electric rollers (32). The two groups of first electric rollers (31) and the two groups of second electric rollers (32) cooperate to horizontally transport the PE inner pipe (61). During the transportation, the support assembly (4) horizontally supports and guides the PE inner pipe (61), and the adjustment assembly (5) is used to limit and adjust the PE inner pipe (61). S2. After the PE inner pipe (61) passes through the support assembly (4), the outer wall of the PE inner pipe (61) is coated with glue by an external gluing device. Then, the ring body (23) drives the four groups of tray mechanisms (24) to rotate. A steel fiber belt (62) is released on each group of tray mechanisms (24). The steel fiber belt (62) is first transported to the repair mechanism (29). The repair mechanism (29) adjusts the position where the steel fiber belt (62) has deviated in real time. After the adjustment is completed, the steel fiber belt (62) is attached to the position where the outer wall of the PE inner pipe (61) has been coated with glue. S3. After the steel fiber belt (62) on the tray mechanism (24) is used up, the tray mechanism (24) is controlled to open, and the spare steel fiber belt (62) can be directly placed on the tray mechanism (24). Moreover, the tray mechanism (24) can be adjusted according to the different widths of the steel fiber belt (62). After the placement is completed, the tray mechanism (24) is continued to be used to release the steel fiber belt (62) for spiral winding and compounding. After the steel fiber belt (62) and the PE inner pipe (61) are compounded, they are put into the PE secondary injection molding production line to inject the PE outer pipe (63) secondly, so that the steel fiber belt (62) is coated inside the PE outer pipe (63). After the secondary injection molding is completed, the stainless steel pipe (64) is inserted into the inside of the steel fiber belt (62) by using the sleeving production line, and finally a composite pipe is formed.

Images