Reelpipe welding equipment based on spiral seam steel-plastic composite pipe

Abstract

The invention relates to the technical field of metal processing, in particular to spiral seam steel-plastic composite pipe-based reel pipe welding equipment which comprises a spiral reel pipe mechanism, a groove processing mechanism, a welding mechanism, a welding seam correcting mechanism and a discharging mechanism. The spiral pipe coiling mechanism achieves forming and rounding of coiled materials through a material coiling roller set and a driving module, the groove machining mechanism completes groove machining through cooperation of a groove pressing protruding ring and a bearing ring, the welding mechanism conducts welding seam welding through a wire feeding device and a welding gun, and a protective cover is arranged to optimize the welding environment. The welding seam correction mechanism monitors the welding seam gap size and adjusts the stop clamp to ensure the welding precision. The discharging mechanism achieves stable conveying and accurate cutting of the pipe fittings through a carrying assembly and a cutting machine. The technical effects that the welding quality is improved, the equipment adaptability is enhanced, and the production efficiency is improved are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of metal processing, and in particular to a coiled pipe welding device based on a spiral seam steel-plastic composite pipe. Background Art

[0002] Spiral steel pipe coiling and welding equipment is a key equipment for producing spiral steel pipes. Spiral steel pipes are widely used in oil and natural gas pipelines, urban water supply and drainage systems, building structures and other fields. Compared with straight seam welded pipes, spiral steel pipes have better compression resistance and bending resistance, and are suitable for large diameter and high pressure pipelines.

[0003] Spiral steel pipe coil welding equipment usually consists of the main parts of unwinding device, forming unit, welding system and cutting device. The unwinding device includes unwinding machine, guide plate and leveling machine, which are used to unwind the coiled steel plate and feed it into the production line. The forming unit consists of pre-bending machine, forming machine, guide wheel and other components, which gradually bend the flattened steel plate into a spiral shape through a series of rollers. The welding system welds the formed spiral steel pipe to ensure a firm seam. The cutting device cuts the continuously produced steel pipe into specified lengths according to demand.

[0004] When the welding system welds the weld of the coiled pipe, the molten metal of the welding wire is difficult to fully penetrate the weld root because the weld is a flat surface. The flat weld reduces the effective bonding area between the plates, resulting in a decrease in tensile strength and compressive resistance. In the welding of steel-plastic composite pipes, insufficient penetration may cause the weld to crack during high-pressure testing. In addition, the weld surface is prone to unevenness after welding, requiring additional grinding, which increases costs. Summary of the invention

[0005] In order to improve the penetration depth and welding quality of the weld, the present application provides a coiled pipe welding device based on a spiral seam steel-plastic composite pipe.

[0006] The present application provides a coiled pipe welding device based on a spiral seam steel-plastic composite pipe, which adopts the following technical solutions, including: The spiral tube winding mechanism comprises a forming frame, a coiling roller group and a driving module group arranged on the forming frame, wherein the coiling roller group comprises a main forming roller, a guide roller, a pressure roller and a rounding supporting roller which are parallel to each other, wherein the guide roller is arranged above the main forming roller for sliding along the vertical direction, the pressure roller is arranged on one side of the main forming roller for sliding, and the rounding supporting roller is arranged on the peripheral side of the main forming roller for sliding; the driving module is used for driving the guide roller to slide along the vertical direction, and is also used for driving the pressure roller to slide in the direction close to or away from the main forming roller; The groove processing mechanism comprises a groove pressing convex ring and a receiving ring, wherein the groove pressing convex ring is sleeved and fixed on one end of the main forming roller, the receiving ring is sleeved and fixed on one end of the pressure roller, and the receiving ring is provided with a matching ring groove for accommodating the groove pressing convex ring; A welding mechanism is provided, wherein the welding mechanism is used for welding a weld seam.

[0007] By adopting the above technical solutions, the coiling roller group and driving module in the spiral coiling mechanism can ensure that the steel plate is gradually bent into a spiral shape and maintains good roundness. The groove processing mechanism forms a suitable groove shape at the weld through the cooperation of the groove convex ring and the receiving ring, effectively increasing the penetration depth and improving the tensile strength and compressive resistance of the weld. The welding mechanism welds the processed weld to ensure that the joint is firm and reduce the need for subsequent grinding, thereby improving the overall welding quality and production efficiency.

[0008] Optionally, the welding mechanism includes a wire feeding device and a welding gun, the wire feeding device includes a wire feeding tube, one end of the wire feeding tube is arranged toward the axis of the main forming roller, and the welding gun is arranged on one side of the wire feeding tube.

[0009] By adopting the above technical solution, one end of the wire feeding tube of the wire feeding device is arranged toward the axis of the main forming roller, which can accurately control the direction of the welding wire feeding, so that the welding wire acts more concentratedly on the root of the weld, effectively improves the penetration depth, and enhances the tensile strength and compressive resistance of the weld. The welding gun is arranged on one side of the wire feeding tube to ensure the coordinated cooperation of the welding wire and the heat source during the welding process.

[0010] Optionally, the outer shell of the welding mechanism is provided with a protective cover, and the protective cover is provided with a feed inlet and a discharge port.

[0011] By adopting the above technical solution, by setting a protective cover outside the welding mechanism and opening a feed port and a discharge port on the protective cover, the welding area can be effectively isolated from the external environment, reducing the impact of spatter on peripheral equipment during welding, and preventing external dust and impurities from entering the welding area, thereby improving the stability of the welding process and the quality of the weld.

[0012] Optionally, a weld correction mechanism is further provided, the weld correction mechanism is located on a side of the welding mechanism close to the spiral tube winding mechanism, and the weld correction mechanism includes a weld monitor and a stop machine base; The weld monitor is located on one side of the stop machine base and is used to monitor the weld gap size; The stop machine base comprises a pipe inlet frame, a hosting roller, and a stop clamp, the pipe inlet frame is provided with a pipe inlet channel, and the hosting roller is rotatably arranged in the pipe inlet channel; The stop clamp includes stop rollers arranged on both sides of the hosting roller, the two stop rollers are arranged opposite to each other, and the stop machine base is provided with a driving source for driving the two stop rollers to slide relative to each other.

[0013] By adopting the above technical solution, the weld monitor can accurately detect the actual position and size of the weld to ensure the preparation accuracy before welding. At the same time, the stop roller on the stop base can slide relative to the driving source to clamp the pipe, so that part of the pipe section of the pipe stops moving, while the spiral pipe winding mechanism continues to roll the pipe out, so that there is a horizontal displacement difference at both ends of the unwelded pipe, so that the gap between the dislocated welds becomes smaller, thereby compensating for the weld dislocation problem caused by the processing groove.

[0014] Optionally, it further comprises a discharging mechanism, wherein the discharging mechanism comprises a discharging bar frame, a supporting assembly arranged on the discharging bar frame, and a cutting device; The supporting assembly comprises a supporting support, a plurality of the supporting supports are arranged at intervals along the discharging bar frame, the supporting support comprises a supporting body and a supporting roller rotatably connected to one end of the supporting body, and the axis of the supporting roller is perpendicular to the moving direction of the pipe fitting; The cutting device is used for cutting pipes.

[0015] By adopting the above technical solution, the setting of the discharging mechanism can effectively realize the smooth transportation and precise cutting of pipe fittings. Specifically, the supporting assembly on the discharging rack ensures the stability of the pipe fittings during transportation through multiple spaced supporting supports and a supporting roller rotatably connected to one end of the support body, thereby avoiding the degradation of welding quality due to vibration or deviation. The design of the supporting roller axis being perpendicular to the movement direction of the pipe fitting further reduces friction resistance and improves transportation efficiency. The introduction of the cutting machine ensures the precise cutting of the formed pipe fittings to meet the requirements of different length specifications, thereby improving the overall production efficiency and product quality.

[0016] Optionally, the supporting assembly further comprises a supporting frame, and the supporting frame is located on a side of the protective cover close to the cutting device; The supporting frame includes a supporting frame body and a pipe-resisting roller group. The supporting frame is provided with a pipe-passing channel. The pipe-resisting roller group includes two pipe-resisting rollers arranged opposite to each other. The pipe-resisting rollers are rotatably arranged in the pipe-passing channel.

[0017] By adopting the above technical solution, a supporting frame is added to the supporting assembly, which is located on the side of the protective cover close to the cutting machine, which can effectively support the pipe fittings and avoid displacement during welding and cutting. The pipe passage on the supporting frame cooperates with the pipe-resisting roller group to keep the pipe fittings stable during the transmission process, reduce vibration and displacement, and thus improve welding and cutting accuracy. The two relatively arranged and rotating pipe-resisting rollers further ensure the stability and concentricity of the pipe fittings in the pipe passage, prevent the decline in welding quality or cutting errors caused by the shaking of the pipe fittings, and ultimately improve the overall production efficiency and product quality, and also improve the stability of pipe fitting transmission.

[0018] Optionally, the cutting machine includes a cutting frame, a swing frame rotatably arranged at one end of the cutting frame, and a cutting tool rotatably arranged at one end of the swing frame. The swing frame is also provided with a power source, the power source is used to drive the cutting tool to rotate, and the cutting frame is provided with a force source, the force source is used to drive the swing frame to rotate.

[0019] By adopting the above technical solution, when the pipe needs to be cut, the spiral pipe winding mechanism and the welding mechanism are shut down; the swing frame is driven to rotate toward the pipe through the force source, and the power source is started at the same time to drive the cutting tool to rotate to cut off the pipe.

[0020] Optionally, a positioning machine base is provided on the discharging bar frame, and the positioning machine base is close to the end of the discharging bar frame; The positioning machine base comprises a positioning frame and a positioning baffle fixed to one side of the positioning frame.

[0021] By adopting the above technical solution, a positioning machine base is arranged on the discharging bar frame, and the positioning machine base is close to the end of the discharging bar frame, which can accurately determine the position of the pipe fittings during the discharging process, avoiding the problem of inaccurate cutting due to position offset. The positioning machine base package includes a positioning frame body and a positioning baffle fixed to one side of the positioning frame body. The positioning baffle can block and position the pipe fittings, thereby improving cutting accuracy and product quality.

[0022] Optionally, the positioning frame is slidably disposed on the discharge bar frame, and the discharge bar frame is also provided with a locking piece for locking the positioning frame.

[0023] By adopting the above technical solution, the positioning frame can slide on the discharging bar frame, so as to flexibly adjust its position to meet the processing requirements of pipes of different lengths. At the same time, by setting a locking piece, it can ensure that the positioning frame is firmly fixed after being adjusted to a suitable position, avoiding displacement during welding or cutting, and improving processing accuracy and stability.

[0024] Optionally, a distance meter is provided on one side of the positioning base, and the distance meter is used to detect the distance between the positioning base and the cutting device.

[0025] By adopting the above technical solution, the setting of the distance meter can detect the distance between the positioning base and the cutting device in real time, thereby improving the accuracy of the cutting position.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. The present application can accurately control the forming process of the pipe through the synergistic effect of the coiling roller group and the driving module, so that the weld can form a more ideal butt joint state, thereby improving the tensile strength and compressive resistance of the weld; 2. The groove pressing convex ring and the receiving ring in the groove processing mechanism of the present application are used together to form a preset groove at the weld, increase the penetration depth of the molten metal, effectively solve the problem of insufficient penetration depth, and improve the welding quality; 3. The welding mechanism in this application welds the welds that have been grooved to ensure that the welds are firm and have a smooth surface, reduce the need for subsequent grinding treatment, and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a coiled pipe welding device based on a spiral seam steel-plastic composite pipe according to an embodiment of the present application; Figure 2 is a schematic structural diagram of a spiral tube winding mechanism in an embodiment of the present application; Figure 3 yes Figure 2 A schematic diagram of the local enlarged structure at point A in the middle; Figure 4 is a schematic diagram of the welding mechanism structure after the protective cover is removed in the embodiment of the present application; Figure 5 is a schematic diagram of a local structure of a cutting device in an embodiment of the present application; Figure 6 It is a structural schematic diagram of a positioning base in an embodiment of the present application; Explanation of the reference numerals: 1. spiral tube winding mechanism; 11. forming frame; 12. winding roller group; 121. main forming roller; 122. guide roller; 123. pressure roller; 124. rounding roller; 13. driving module; 131. first cylinder; 132. second cylinder; 2. groove processing mechanism; 21. groove pressing convex ring; 22. receiving ring; 221. matching ring groove; 3. welding mechanism; 31. wire feeding device; 311. wire feeding tube; 312. wire feeding roller; 313. servo motor; 32. welding gun; 33. welding frame; 34. wire reel; 4. protective cover; 41. feed port; 42. discharge port; 5. weld correction mechanism; 51. weld monitor; 52. stop Machine base; 521, pipe inlet frame; 5211, pipe inlet channel; 522, support bracket; 523, hosting roller; 524, stop clamp; 5241, stop roller; 5242, driving source; 6, discharging bar rack; 7, supporting assembly; 71, supporting frame; 711, pipe passage; 712, supporting frame; 713, pipe-resisting roller; 72, supporting bracket; 721, bracket body; 722, supporting roller; 8, cutting device; 81, cutting frame; 82, swing frame; 83, automatic cutting machine; 831, cutting tool; 832, power source; 84, force source; 9, positioning machine base; 91, positioning frame; 92, positioning baffle; 93, locking piece; 10, distance meter. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-6 This application is described in further detail.

[0029] The embodiment of the present application provides a coiled pipe welding device based on a spiral seam steel-plastic composite pipe.

[0030] The coiled pipe welding equipment based on the spiral seam steel-plastic composite pipe includes a spiral coiling mechanism 1, a groove processing mechanism 2 and a welding mechanism 3. In actual use, an unwinding device is provided at the front end of the spiral coiling mechanism 1, and the unwinding device is used to unwind the rolled steel plate and feed it into the production line; the spiral coiling mechanism 1 is used to gradually bend the steel plate into a spiral shape; the groove processing mechanism 2 is used to process a suitable groove shape at the weld; and the welding mechanism 3 is used to obtain the pipe fitting after completing the final welding operation. Through the reasonable coordination of the above structures, the penetration depth and welding quality of the weld are effectively improved.

[0031] refer to Figure 1 and Figure 2The spiral tube winding mechanism 1 includes a forming frame 11, a coiling roller group 12 and a driving module 13. The coiling roller group 12 includes a main forming roller 121, a guide roller 122, a pressure roller 123 and a rounding roller 124 which are arranged in parallel with each other. The main forming roller 121 is fixed on the forming frame 11, and the guide roller 122 is slidably connected to the forming frame 11 in the vertical direction, and the guide roller 122 is located above the main forming roller 121. The initial bending angle of the steel plate can be controlled by adjusting the height of the guide roller 122. The pressure roller 123 is located on the side of the main forming roller 121 away from the guide roller 122, and the guide roller 122 is slidably connected to the forming frame 11, and is used to apply lateral pressure to the steel plate to ensure that it is closely attached to the surface of the main forming roller 121. The rounding roller 124 is slidably arranged on the peripheral side of the main forming roller 121, and is used to assist in correcting the roundness of the steel plate to form a stable spiral shape. In this embodiment, two rounding rollers 124 are specifically provided, and both rounding rollers 124 are located below the main forming roller 121. The guide roller 122 and the pressure roller 123 are each equipped with a mounting support, and the guide roller 122 and the pressure roller 123 are rotatably connected to the corresponding mounting support.

[0032] refer to Figure 2 The driving module 13 includes a first cylinder 131 and a second cylinder 132. The first cylinder 131 is fixed to the forming frame 11, and one end of the telescopic rod of the first cylinder 131 is connected to the mounting support corresponding to the guide roller 122 to drive the guide roller 122 to slide in the vertical direction. One end of the telescopic rod of the second cylinder 132 is connected to the mounting support corresponding to the pressure roller 123 to drive the pressure roller 123 to slide in the direction close to or away from the main forming roller 121, thereby achieving precise control of the steel plate. In this embodiment, two first cylinders 131 and two second cylinders 132 are provided.

[0033] In other embodiments, the main forming roller 121 and the rounding roller 124 may also be slidably connected to the forming frame 11 to meet different processing requirements.

[0034] refer to Figure 2 and Figure 3 , the groove processing mechanism 2 includes a groove pressing convex ring 21 and a receiving ring 22. A mounting short column is integrally formed at one end of the pressure roller 123, and the receiving ring 22 is sleeved and fixed on the mounting short column; the cross section of the groove pressing convex ring 21 gradually shrinks in the direction away from its own axis, and can be selected to be V-shaped or trapezoidal, which is used to press out the corresponding groove shape at the butt joint of the edge of the steel plate. A connecting short column is integrally formed at one end of the main forming ring close to the groove pressing convex ring 21, and the groove pressing convex ring 21 is sleeved and fixed on the connecting short column. A matching ring groove 221 for accommodating the groove pressing convex ring 21 is processed on the outer wall of the receiving ring 22 to ensure that the two are tightly matched. In this embodiment, the groove pressing convex ring 21 is made of cemented carbide material, and the receiving ring 22 is made of cast iron material.

[0035] refer to Figure 1 and Figure 4 The welding mechanism 3 includes a welding frame 33, a wire feeding device 31 and a welding gun 32. The wire feeding device 31 is connected to the welding frame 33. The wire feeding device 31 includes a welding wire reel 34, a wire feeding assembly and a wire feeding tube 311. The welding wire reel 34 is rotatably connected to the welding frame 33. The welding wire is wound on the welding wire reel 34. The wire feeding assembly is located between the welding wire reel 34 and the wire feeding tube 311. The wire feeding assembly includes two wire feeding rollers 312 rotatably connected to the welding frame 33. A servo motor 313 for driving a wire feeding roller 312 to rotate is also fixed to the welding frame 33. The wire feeding tube 311 is fixed to the welding frame 33, and one end of the wire feeding tube 311 is arranged toward the axis of the main forming roller 121; after one end of the welding wire on the welding wire reel 34 passes between the two wire feeding rollers 312, it continues to pass through the wire feeding tube 311 and is located on one side of the pipe fitting. The welding gun 32 is fixed on the welding frame 33 and is located on one side of the wire feeding tube 311, and the heating end of the welding gun 32 is arranged toward the opening of the wire feeding tube 311 away from the wire feeding roller 312. This can ensure that the welding wire is accurately delivered to the weld, thereby improving the welding effect. The welding mechanism 3 is provided with a protective cover 4, and the protective cover 4 is fixedly connected to the welding frame 33. Figure 1 and Figure 5 A feed port 41 is provided at one end of the protective cover 4, and a discharge port 42 is provided at the other end. The feed port 41 and the discharge port 42 are arranged opposite to each other to allow pipes to enter and exit.

[0036] refer to Figure 1 and Figure 4 A weld correction mechanism 5 is provided between the welding mechanism 3 and the spiral tube winding mechanism 1, and the weld correction mechanism 5 includes a weld monitor 51 and a stop machine base 52. The weld monitor 51 is located on the side of the stop machine base 52 close to the spiral tube winding mechanism 1, and is used to monitor the gap size of the weld on the pipe fitting. The stop machine base 52 includes a pipe inlet frame 521, a hosting roller 523 and a stop clamp 524. A pipe inlet channel 5211 is processed on the pipe inlet frame 521; a support bracket 522 is fixed at the bottom of the pipe inlet frame 521, and the hosting roller 523 is rotatably connected to the support bracket 522 through a rotating shaft, so as to realize the rotation connection of the hosting roller 523 in the pipe inlet channel 5211, and the axis of the hosting roller 523 is perpendicular to the moving direction of the pipe fitting. The hosting roller 523 is used to support and guide the pipe fitting to enter the welding area.

[0037] refer to Figure 4The stop clamp 524 includes stop rollers 5241 arranged on both sides of the hosting roller 523, the two stop rollers 5241 are arranged opposite to each other, and a driving source 5242 for driving the two stop rollers 5241 to slide relative to each other is fixed on the stop machine base 52. There are two driving sources 5242, and the driving sources 5242 correspond to the stop rollers 5241 one by one. In this embodiment, the driving source 5242 adopts a hydraulic cylinder, which has a large driving force to ensure that the stop rollers 5241 can firmly clamp the pipe. The weld monitor 51 is connected to the control system by telecommunication, so that the driving source 5242 is also connected to the control system by telecommunication. In this embodiment, the weld monitor 51 specifically adopts a laser rangefinder or a visual sensor, which can detect the weld gap size in real time and feed the data back to the control system. When it is detected that the weld gap exceeds the set range, the control system will automatically trigger the stop clamp 524 to clamp part of the pipe section of the pipe so that the clamped part of the pipe stops moving, while the spiral pipe winding mechanism 1 continues to roll the pipe and discharge the material, so that there is a horizontal displacement difference between the two ends of the pipe that have not been welded, so that the gap between the misaligned welds becomes smaller, thereby compensating for the weld misalignment problem caused by the processing of the groove.

[0038] The weld correction mechanism 5 detects and adjusts the weld gap on the pipe before welding to ensure that the weld quality meets the requirements. Compared with the prior art, this embodiment effectively avoids welding quality problems caused by excessive weld gap and further improves welding reliability.

[0039] refer to Figure 4 and Figure 5 , the discharging mechanism includes a discharging bar frame 6, a supporting assembly 7 and a cutting device 8. One end of the discharging bar frame 6 is close to the protective cover 4, and the other end extends horizontally in the direction away from the protective cover 4. The supporting assembly 7 includes a supporting support 72 and a supporting frame 71, and the supporting frame 71 is located on the side of the protective cover 4 close to the cutting device 8. The supporting frame 71 includes a supporting frame body 712 and a tube-proof roller group, and the supporting frame body 712 is provided with a tube-passing channel 711. The tube-proof roller 713 group includes two tube-proof rollers 713 arranged opposite to each other, and each tube-proof roller 713 is also equipped with a mounting support; the mounting support corresponding to the tube-proof roller 713 is fixed on the supporting frame body 712, and the two tube-proof rollers 713 are rotatably connected to the tube-passing channel 711 through the mounting support. The supporting support 72 is located on the side of the cutting device 8 away from the supporting frame 71, and a plurality of supporting supports 72 are arranged at intervals along the discharging bar frame 6. Each supporting support 72 includes a support body 721 and a supporting roller 722 rotatably connected to one end of the support body 721 , and the axis of the supporting roller 722 is perpendicular to the moving direction of the pipe.

[0040] refer to Figure 5The cutting device 8 includes a cutting frame 81, a swing frame 82 and a cutting tool 831. The swing frame 82 is rotatably connected to the top of the cutting frame 81 through a rotating shaft. The cutting tool 831 is rotatably connected to the cutting tool 831 at one end of the swing frame 82 through a rotating shaft. The swing frame 82 is also provided with a power source 832. In this embodiment, the power source 832 is a motor. The cutting frame 81 is also provided with a force source 84, which is specifically configured as a force cylinder; one end of the force cylinder is hinged to the bottom end of the cutting frame 81, and the other end is hinged to the swing frame 82; when the force cylinder is extended and retracted, the swing frame 82 can be driven to rotate, so that the swing frame 82 drives the cutting tool 831 to approach or move away from the pipe.

[0041] The discharging mechanism supports and cuts the pipe fittings after welding is completed, ensuring the continuity of the production process. Compared with the prior art, this embodiment not only improves production efficiency, but also reduces manual intervention and labor intensity.

[0042] refer to Figure 1 and Figure 6 , a positioning base 9 is provided at the end of the discharging strip frame 6, that is, the end of the discharging strip frame 6 away from the welding frame 33. The positioning base 9 includes a positioning frame 91 and a positioning baffle 92 fixed to one side of the positioning frame 91. A pulley is connected to the bottom of the positioning frame 91, and the positioning base 9 is slidably connected to the discharging strip frame through the pulley. The positioning base 9 is also provided with a locking member 93 for locking itself. In this embodiment, the locking member 93 is specifically configured as a brake on the pulley. In other embodiments, the locking member 93 can also adopt an electromagnetic lock, and the locking function is realized by powering on. A rangefinder 10 is also fixed on one side of the positioning base 9, and the rangefinder 10 is used to detect the distance between the positioning base 9 and the cutting device 8. The rangefinder 10 adopts a laser rangefinder 10, which can detect the distance between the positioning base 9 and the cutting device 8 in real time, and feed back the data to the control system to ensure cutting accuracy.

[0043] The implementation principle of the coiled pipe welding equipment based on the spiral seam steel-plastic composite pipe in the embodiment of the present application is as follows: the rolled steel plate is unfolded and fed into the production line through the uncoiling device, and the steel plate is ensured to maintain a stable state during the bending process through the precise control of the spiral coiling mechanism 1; the appropriate groove shape is processed at the weld by the groove processing mechanism 2 to increase the effective bonding area of ​​the weld; the weld correction mechanism 5 compensates for the weld misalignment caused by the groove processing, and then the welding mechanism 3 is turned on to complete the welding operation, which significantly improves the weld penetration and welding quality of the processed pipe. When the sent pipe is against the positioning baffle 92, the spiral coiling mechanism 1, the groove processing mechanism 2 and the welding mechanism 3 all stop running, and the cutting device 8 cuts the pipe to obtain a pipe of suitable size. This embodiment not only solves the problem of insufficient weld penetration, but also reduces the need for subsequent grinding treatment, reduces production costs, and improves production efficiency.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A coiled pipe welding device based on a spiral seam steel-plastic composite pipe, characterized in that: include: A spiral tube winding mechanism (1) comprises a forming frame (11), a winding roller group (12) arranged on the forming frame (11), and a driving module (13); the winding roller group (12) comprises a main forming roller (121), a guide roller (122), a pressure roller (123), and a rounding support roller (722) which are parallel to each other; the guide roller (122) is slidably arranged above the main forming roller (121) in a vertical direction; the pressure roller (123) is slidably arranged on one side of the main forming roller (121); and the rounding support roller (722) is slidably arranged on the peripheral side of the main forming roller (121); the driving module (13) is used to drive the guide roller (122) to slide in a vertical direction, and is also used to drive the pressure roller (123) to slide in a direction close to or away from the main forming roller (121); The groove processing mechanism (2) comprises a groove pressing convex ring (21) and a receiving ring (22), wherein the groove pressing convex ring (21) is sleeved and fixed on one end of the main forming roller (121), and the receiving ring (22) is sleeved and fixed on one end of the pressure roller (123), and the receiving ring (22) is provided with a matching ring groove (221) for accommodating the groove pressing convex ring (21); A welding mechanism (3), wherein the welding mechanism (3) is used for welding a weld seam.

2. The spiral seam steel-plastic composite pipe coil welding equipment according to claim 1 is characterized in that: The welding mechanism (3) comprises a wire feeding device (31) and a welding gun (32); the wire feeding device (31) comprises a wire feeding tube (311); one end of the wire feeding tube (311) is arranged toward the axis of the main forming roller (121); and the welding gun (32) is arranged on one side of the wire feeding tube (311).

3. The coiled pipe welding equipment based on spiral seam steel-plastic composite pipe according to claim 2 is characterized in that: The outer cover of the welding mechanism (3) is provided with a protective cover (4), and the protective cover (4) is provided with a feed inlet (41) and a discharge outlet (42).

4. The coiled pipe welding equipment based on spiral seam steel-plastic composite pipe according to claim 1 is characterized in that: A weld correction mechanism (5) is also provided, the weld correction mechanism (5) being located on a side of the welding mechanism (3) close to the spiral tube winding mechanism (1), the weld correction mechanism (5) comprising a weld monitor (51) and a stop machine base (52); The weld monitor (51) is located on one side of the stop machine base (52) and is used to monitor the weld gap size; The stop machine base (52) comprises a pipe inlet frame (521), a hosting roller (523), and a stop clamp (524); a pipe inlet channel (5211) is provided on the pipe inlet frame (521); and the hosting roller (523) is rotatably disposed in the pipe inlet channel (5211); The stop clamp (524) comprises stop rollers (5241) arranged on both sides of the hosting roller (523), the two stop rollers (5241) being arranged opposite to each other, and a driving source (5242) for driving the two stop rollers (5241) to slide relative to each other is arranged on the stop machine base (52).

5. The coiled pipe welding equipment based on spiral seam steel-plastic composite pipe according to claim 3 is characterized in that: It also includes a discharging mechanism, the discharging mechanism including a discharging bar frame (6), a supporting assembly (7) arranged on the discharging bar frame (6), and a cutting device (8); The supporting assembly (7) comprises a supporting support (72), a plurality of the supporting supports (72) are arranged at intervals along the discharging bar frame (6), the supporting support (72) comprises a supporting body (721) and a supporting roller (722) rotatably connected to one end of the supporting body (721), and the axis of the supporting roller (722) is perpendicular to the movement direction of the pipe; The cutting device (8) is used for cutting pipe fittings.

6. The coiled pipe welding equipment based on spiral seam steel-plastic composite pipe according to claim 5 is characterized in that: The supporting assembly (7) further comprises a supporting frame (71), wherein the supporting frame (71) is located on a side of the protective cover (4) close to the cutting device (8); The supporting frame (71) comprises a supporting frame body (712) and a tube-resisting roller (713) group. A tube-passing passage (711) is provided on the supporting frame (71). The tube-resisting roller (713) group comprises two tube-resisting rollers (713) arranged opposite to each other. The tube-resisting rollers (713) are rotatably arranged in the tube-passing passage (711).

7. The coiled pipe welding equipment based on spiral seam steel-plastic composite pipe according to claim 5 is characterized in that: The cutting device (8) comprises a cutting frame (81), a swing frame (82) rotatably arranged at one end of the cutting frame (81), and a cutting tool (831) rotatably arranged at one end of the swing frame (82); a power source (832) is further arranged on the swing frame (82); the power source (832) is used to drive the cutting tool (831) to rotate; and a force source (84) is arranged on the cutting frame (81); the force source (84) is used to drive the swing frame (82) to rotate.

8. The coiled pipe welding equipment based on spiral seam steel-plastic composite pipe according to claim 5 is characterized in that: A positioning machine base (9) is provided on the discharging strip frame (6), and the positioning machine base (9) is close to the end of the discharging strip frame (6); The positioning machine base (9) comprises a positioning frame (91) and a positioning baffle (92) fixed to one side of the positioning frame (91).

9. The coiled pipe welding equipment based on spiral seam steel-plastic composite pipe according to claim 8 is characterized in that: The positioning frame (91) is slidably disposed on the discharge bar frame (6), and a locking piece (93) for locking the positioning frame (91) is also disposed on the discharge bar frame (6).

10. The coiled pipe welding equipment based on spiral seam steel-plastic composite pipe according to claim 9 is characterized in that: A distance meter (10) is provided on one side of the positioning machine base (9), and the distance meter (10) is used to detect the distance between the positioning machine base (9) and the cutting device (8).

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