High-temperature-resistant stainless steel seamed pipe production equipment

Abstract

The present application relates to welded pipe production equipment technical field, and disclose a kind of high-temperature-resistant stainless steel welded pipe production equipment, including main body, further comprising: deviation prevention mechanism, deviation prevention mechanism installation is set in the side wall of main body, the operation of deviation prevention mechanism can reduce the situation that cylinder gap alignment appears inclination.This application cylinder gap will gradually close under the movement of cladding sheet, when push rod is pushed by push plate, push rod will slide to back under the influence of its own inclined block, push rod slides to back, it will be compressed by synchronous rod push reset spring, at the same time, when push rod rotates, push plate will slide down under the influence of two push rods, when push rod slides to back, push plate will carry out synchronous movement, the rotation of push plate will extrude cylinder gap position, so as to reduce the situation that alignment plate appears inclination under the extrusion of cylinder, improve the accuracy of welding position when cylinder is welded.

Description

Technical Field

[0001] This invention relates to the field of welded pipe production equipment technology, specifically to a high-temperature resistant stainless steel welded pipe production equipment. Background Technology

[0002] The high-temperature resistant stainless steel welded pipe production equipment can stably produce high-temperature resistant stainless steel welded pipes, improve the industry's high-efficiency, energy-saving and high-precision manufacturing level, fill the gap in the localization of high-end pipe materials, replace imports, promote industrial upgrading, ensure the security of the high-end equipment supply chain, promote the progress of new materials and intelligent manufacturing technologies, and enhance the international competitiveness of the manufacturing industry. In conventional high-temperature resistant stainless steel welded pipe production equipment, during the welding process, workers typically place the rolled-up cylindrical sheet metal onto a placement column on the equipment. The workers then manually adjust the cylinder to align the seam with the top welding torch and use a pusher block to join the two sides of the cylinder to be welded. Simultaneously, the bottom of the cylinder is stabilized. Because the placement column is cylindrical, the pusher block can easily cause the seam to tilt when it moves the cylinder, requiring workers to make multiple adjustments and reducing the accuracy of the cylinder's position during welding. Summary of the Invention

[0003] The purpose of this invention is to provide a high-temperature resistant stainless steel welded pipe production equipment to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a high-temperature resistant stainless steel welded pipe production equipment, comprising a main body and further comprising: Anti-deviation mechanism: The anti-deviation mechanism is installed on the side wall of the main body. The operation of the anti-deviation mechanism can reduce the tilting when the cylinder gaps are aligned. The auxiliary mechanism is installed at the bottom of the anti-deviation mechanism. The operation of the auxiliary mechanism can prevent the cylinder to be welded from being squeezed into an elliptical shape when the anti-deviation mechanism is operating.

[0005] Furthermore, the main body includes: Alignment component, the alignment component is set on the top inner wall of the main body; The welding assembly is located on top of the main body, and its operation is used to weld the gaps in the cylinder.

[0006] Furthermore, the anti-deviation mechanism includes: The covering component is located at the bottom of the alignment component, and its operation can compress the cylinder; Anti-protrusion component, the anti-protrusion component is set at the bottom of the covering component.

[0007] Furthermore, the auxiliary mechanisms include: Synchronization component, the synchronization component sets the back of the anti-protrusion component; The pull-out component is located on top of the anti-protrusion component. The operation of the pull-out component can pull the cylinder out after welding is completed.

[0008] Furthermore, the alignment assembly includes two alignment plates that are slidably connected to the inner wall of the top of the body; Two alignment plates are symmetrically distributed around the main body, and placement rods are fixedly connected to the side walls of the main body; The placement rod is located at the bottom of the alignment plate.

[0009] Furthermore, the welding assembly includes a sliding block fixedly connected to the top of the main body, and a welding torch holder is slidably connected to the side wall of the sliding block.

[0010] Furthermore, the covering component includes a toggle plate fixedly connected to the bottom of the alignment plate, and a push rod is provided on the left side of the toggle plate; A push plate is slidably connected between the two push rods; The bottom of the push plate is provided with two covering pieces, which are symmetrically distributed with the main body as the center; The two covering pieces are slidably connected, and the side wall of the push rod is fixedly connected to an inclined block. The covering pieces are set with an arc.

[0011] Furthermore, the anti-protrusion assembly includes a rotating plate rotatably connected to the bottom of the push rod, and several springs are fixedly connected to the side wall of the rotating plate; Several springs are evenly distributed around the rotating plate; The end of the spring away from the rotating plate is fixedly connected to the side wall of the push rod; Each set of springs has two deformation plates at the bottom, and the two deformation plates are arranged in a cross pattern; The deformable plate slides through the rotating plate to the side wall of another rotating plate; The two deformation plates are slidably connected, and the deformation plates are set in an arc shape, giving them a certain deformation capacity.

[0012] Furthermore, the synchronization component includes a synchronization rod slidably connected inside the main body, and two connecting posts are slidably connected to the side wall of the synchronization rod; The two connecting posts are symmetrically distributed around the synchronizing rod, and the end of the connecting post away from the synchronizing rod is slidably connected to the rotating plate. A connecting rod is rotatably connected to the outer surface of the connecting column, and the two connecting rods are rotatably connected. The side walls of the two connecting rods are slidably connected by limiting rods; Among them, a reset spring is fixedly connected to the side of the synchronizing rod closest to the main body.

[0013] Furthermore, the brought-out component includes a movable plate fixedly connected to the top of the deformable plate away from the main body; Several rubber plates are fixedly connected to the top of the movable plate, and the rubber plates are evenly distributed around the movable plate. A resistance plate is fixedly connected to the top of the rubber sheet; The movable plate is located inside the covering sheet, and both the rubber plate and the resistance plate are made of rubber.

[0014] The present invention has the following beneficial effects: 1. In this invention, the circle formed by the two covering plates gradually shrinks and covers and compresses the outer wall of the inner cylinder. The gap in the cylinder gradually closes under the movement of the covering plates. When the push rod is pushed by the actuating plate, the push rod slides backward under the influence of its own tilting block. The sliding of the push rod backward will push the return spring to compress through the synchronizing rod. At the same time, when the push rod rotates, the alignment plate slides downward under the influence of the two push rods. When the push rod slides backward, the alignment plate will move synchronously. The sliding of the alignment plate will compress the gap in the cylinder, thereby reducing the tilting of the alignment plate under the compression of the cylinder and improving the accuracy of the welding position of the cylinder during welding.

[0015] 2. In this invention, the bottoms of the two rotating plates move closer to each other during rotation, causing the deformation plates to continuously rise as they slide against each other. This upward trend of the deformation plates provides an upward pushing force to the bottom of the cylinder. Simultaneously, when the inner wall of the covering sheet contacts the outer wall of the cylinder, the spring on the side wall of the rotating plate is compressed by the covering sheet. At this time, the rotating plate rotates in the opposite direction to the center of the main body, thereby reducing the compressive force on both sides of the cylinder. Due to the arrangement of the deformation plates and rotating plates, the deformation of the cylinder caused by excessive pushing force from the push rods on both sides is reduced, further improving the shape stability of the cylinder during welding.

[0016] 3. In this invention, the bottoms of the rotating plates approaching each other cause the connecting column to drive the synchronizing rod to slide upwards. Since the sliding area between the synchronizing rod and the main body sidewall is square, rotation is less likely to occur when the synchronizing rod slides upwards. Due to the arrangement of the synchronizing rod, the rotation angle of the rotating plates remains the same. When the cylinder is too small, the connecting column will slide on the sidewall of the synchronizing rod. When the connecting column slides, the included angle between the two connecting rods will gradually decrease. At this time, the limiting rod will gradually slide upwards under the drive of the connecting rod, reducing the situation where the sliding distance of the connecting column on the synchronizing rod is different. Due to the arrangement of the connecting column, the situation of insufficient pushing force on the cylinder caused by inconsistent rotation angles of the rotating plates is reduced, and the consistency of the rotation of the rotating plates when the cylinder gaps are aligned is improved.

[0017] 4. In this invention, the inner wall of the covering sheet gradually moves away from the outer surface of the cylinder. At this time, the deformation plate slides away from the connecting column under the push of the reset spring on the side of the synchronous rod near the main body. At this time, the moving plate and the rubber plate will drive the top cylinder to move synchronously under the influence of friction. When the deformation plate gradually resets, the moving plate will continuously move away from the surface of the cylinder. When the moving plate moves away to a certain distance, the flattened rubber plate will reset. The reset of the rubber plate will provide an additional pushing force to the top cylinder, so that the cylinder will quickly move away from the covering ring of the covering sheet when the welding is finished. This reduces the situation where the cylinder gets stuck inside the circle formed by the covering sheet, which would make it inconvenient to remove. This improves the overall efficiency of the cylinder during welding.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged diagram of A in the middle; Figure 4 This is a schematic diagram showing the location of the components of the present invention; Figure 5 This is a schematic diagram showing the location of the covering component of the present invention; Figure 6 This is a schematic diagram of the encapsulation component of the present invention; Figure 7 This is a schematic diagram of the anti-protrusion component of the present invention; Figure 8 This is a schematic diagram of the synchronization component of the present invention; Figure 9 This is a schematic diagram of the components of the present invention.

[0021] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Main body; 11. Alignment assembly; 111. Alignment plate; 112. Placement rod; 12. Welding assembly; 121. Sliding block; 122. Welding gun holder; 2. Anti-deviation mechanism; 21. Covering assembly; 211. Actuating plate; 212. Push rod; 213. Alignment plate; 214. Covering piece; 22. Anti-protrusion assembly; 221. Rotating plate; 222. Spring; 223. Deformation plate; 3. Auxiliary mechanism; 31. Synchronization assembly; 311. Synchronization rod; 312. Connecting column; 313. Connecting rod; 314. Limiting rod; 32. Belt-out assembly; 321. Moving plate; 322. Rubber plate; 323. Resistance plate. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1 - Figure 9 As shown, the present invention is a production equipment for high-temperature resistant stainless steel welded pipes, comprising a main body 1, and further comprising: Anti-deviation mechanism 2 is installed on the side wall of the main body 1. The operation of anti-deviation mechanism 2 can reduce the tilting when the cylinder gap is aligned. Auxiliary mechanism 3 is installed at the bottom of anti-deviation mechanism 2. The operation of auxiliary mechanism 3 can prevent the anti-deviation mechanism 2 from squeezing the cylinder to be welded into an elliptical shape.

[0024] Entity 1 includes: Alignment component 11 is disposed on the top inner wall of the main body 1; Welding assembly 12 is located on the top of the main body 1. The operation of welding assembly 12 welds the gap in the cylinder.

[0025] Anti-deviation mechanism 2 includes: Covering component 21 is disposed at the bottom of alignment component 11, and the operation of covering component 21 can compress the cylinder; Anti-protrusion component 22 is disposed at the bottom of the covering component 21.

[0026] Auxiliary mechanism 3 includes: Synchronization component 31, the synchronization component 31 is set on the back of the anti-protrusion component 22; The pull-out component 32 is located on top of the anti-protrusion component 22. The operation of the pull-out component 32 can pull out the cylinder after welding is completed.

[0027] Alignment component 11 includes two alignment plates 111 that are slidably connected to the inner top wall of body 1; Two alignment plates 111 are symmetrically distributed around the main body 1, and a placement rod 112 is fixedly connected to the side wall of the main body 1; The placement rod 112 is located at the bottom of the alignment plate 111. The alignment plate 111 will squeeze the plates at both ends of the bottom cylindrical gap and close the gap.

[0028] The welding assembly 12 includes a sliding block 121 fixedly connected to the top of the main body 1. A welding gun holder 122 is slidably connected to the side wall of the sliding block 121. The sliding block 121 will drive the welding gun on the welding gun holder 122 to move synchronously. At this time, the welding gun will weld the gap after the cylinder is aligned.

[0029] The covering component 21 includes a toggle plate 211 fixedly connected to the bottom of the alignment plate 111, and a push rod 212 is provided on the left side of the toggle plate 211; A push plate 213 is slidably connected between the two push rods 212; Two covering pieces 214 are provided at the bottom of the push plate 213, and the two covering pieces 214 are symmetrically distributed with the main body 1 as the center; Among them, the two covering pieces 214 are slidably connected, and the side wall of the push rod 212 is fixedly connected with an inclined block. The covering piece 214 is set with an arc. When the toggle plate 211 rotates, the bottom of the toggle plate 211 will push the top of the push rod 212. When the top of the push rod 212 is pushed, the bottom of the push rod 212 will rotate towards the center of the main body 1.

[0030] The anti-protrusion component 22 includes a rotating plate 221 rotatably connected to the bottom of the push rod 212, and a number of springs 222 are fixedly connected to the side wall of the rotating plate 221; Several springs 222 are equidistantly distributed around the rotating plate 221; The end of the spring 222 away from the rotating plate 221 is fixedly connected to the side wall of the push rod 212; Each set of springs 222 has two deformation plates 223 at its bottom, and the two deformation plates 223 are arranged in a cross pattern. The deformable plate 223 slides through the rotating plate 221 to the side wall of another rotating plate 221; The two deformation plates 223 are slidably connected. The deformation plates 223 are arranged in an arc shape and have a certain deformation capacity. The push rod 212 will drive the rotating plate 221 to rotate synchronously. At this time, the rotation direction of the two rotating plates 221 is towards the middle of the main body 1. The rotation of the rotating plate 221 will drive the deformation plate 223 at the bottom to rotate synchronously.

[0031] The synchronization component 31 includes a synchronization rod 311 that is slidably connected inside the main body 1, and two connecting posts 312 are slidably connected to the side wall of the synchronization rod 311; The two connecting posts 312 are symmetrically distributed around the synchronizing rod 311, and the end of the connecting post 312 away from the synchronizing rod 311 is slidably connected to the rotating plate 221. A connecting rod 313 is rotatably connected to the outer surface of the connecting column 312, and the two connecting rods 313 are rotatably connected. The side walls of the two connecting rods 313 are slidably connected to a limiting rod 314; Among them, the synchronous rod 311 is fixedly connected to the side of the main body 1 with a reset spring. When the bottoms of the rotating plates 221 are close to each other, the connecting column 312 will drive the synchronous rod 311 to slide upward. Since the sliding part between the synchronous rod 311 and the side wall of the main body 1 is square, it is not easy for the synchronous rod 311 to rotate when it slides upward.

[0032] The pull-out component 32 includes a movable plate 321 fixedly connected to the top of the deformable plate 223 away from the main body 1; Several rubber plates 322 are fixedly connected to the top of the movable plate 321, and the rubber plates 322 are distributed at equal intervals around the movable plate 321. A resistance plate 323 is fixedly connected to the top of the rubber sheet 322; The movable plate 321 is located inside the covering sheet 214. Both the rubber plate 322 and the resistance plate 323 are made of rubber. The top of the rubber plate 322 is flattened by the outer surface of the cylinder. At this time, the rubber plate 322 and the resistance plate 323 will be on the same horizontal plane.

[0033] In use, the operator first places the external welding torch into the welding torch holder 122 and adjusts the alignment position of the welding torch holder 122. Then, the operator places the cylinder to be welded onto the placement rod 112 with the side wall gap facing upwards. The operator then preliminarily aligns and straightens the gap and activates the alignment plate 111. At this time, the alignment plate 111 will squeeze the plates at both ends of the bottom cylinder gap and close the gap. Finally, the operator starts the external motor connected to the side wall of the sliding block 121. The sliding block 121 will drive the welding torch on the welding torch holder 122 to move synchronously. At this time, the welding torch will weld the gap after the cylinder is aligned, thus completing the welding and production of the welded pipe.

[0034] The production of welded pipe involves rolling a flat sheet into a cylinder, then releasing the stress on the newly rolled cylinder. After the stress is released, the gaps in the cylinder are welded to complete the production of the welded pipe.

[0035] When the two alignment plates 111 slide towards the center of the main body 1, the movement of the alignment plates 111 will cause the actuating plate 211 to rotate around the rotation axis. When the actuating plate 211 rotates, the bottom of the actuating plate 211 will push the top of the push rod 212. When the top of the push rod 212 is pushed, the bottom of the push rod 212 will rotate towards the center of the main body 1. The rotation of the bottom of the push rod 212 will push the two covering pieces 214 closer to each other. When the covering pieces 214 slide towards each other, the circle formed by the two covering pieces 214 will gradually shrink and cover and squeeze the outer wall of the inner cylinder. The gap of the cylinder will be reduced by the movement of the covering pieces 214. As the cylinder gradually closes, when the push rod 212 is pushed by the actuating plate 211, the push rod 212 will slide backward under the influence of its own tilting block. When the push rod 212 slides backward, it will push the return spring to compress through the synchronizing rod 311. At the same time, when the push rod 212 rotates, the aligning plate 213 will slide downward under the influence of the two push rods 212. When the push rod 212 slides backward, the aligning plate 213 will move synchronously. The sliding of the aligning plate 213 will squeeze the gap position of the cylinder, thereby reducing the tilting of the aligning plate 111 under the squeezing of the cylinder, and improving the accuracy of the welding position of the cylinder during welding.

[0036] When the push rod 212 rotates, it drives the rotating plate 221 to rotate synchronously. At this time, the rotation direction of both rotating plates 221 is towards the middle of the main body 1. The rotation of the rotating plate 221 will drive the deformation plate 223 at the bottom to rotate synchronously. The two deformation plates 223 will slide against each other under the action of the rotating plate 221. Since the bottoms of the two rotating plates 221 are in a state of approaching each other when rotating, the deformation plates 223 will continuously rise as they slide against each other. The rising of the deformation plates 223 will affect the cylinder. The bottom provides an upward pushing force. At the same time, when the inner wall of the covering plate 214 contacts the outer wall of the cylinder, the spring 222 on the side wall of the rotating plate 221 will be compressed under the obstruction of the covering plate 214. At this time, the rotating plate 221 will rotate in the opposite direction to the center of the main body 1, thereby reducing the squeezing force on both sides of the cylinder. Due to the setting of the deformation plate 223 and the rotating plate 221, the cylinder is reduced from deforming due to the excessive pushing force of the push rods 212 on both sides, which further improves the shape stability of the cylinder during welding.

[0037] When the rotating plate 221 rotates, it causes the connecting post 312 to slide on the side wall of the synchronizing rod 311. Simultaneously, the connecting post 312 also slides on the side wall of the rotating plate 221. When both rotating plates 221 rotate towards the center of the main body 1, the bottoms of the rotating plates 221 approach each other, causing the connecting post 312 to drive the synchronizing rod 311 to slide upwards. Because the sliding area between the synchronizing rod 311 and the side wall of the main body 1 is square-shaped, rotation is less likely when the synchronizing rod 311 slides upwards. The design of the synchronizing rod 311 ensures that the rotation of the rotating plate 221... With the moving angle remaining the same, when the cylinder is too small, the connecting column 312 will slide on the side wall of the synchronizing rod 311. When the connecting column 312 slides, the included angle between the two connecting rods 313 will gradually decrease. At this time, the limiting rod 314 will gradually slide upward under the drive of the connecting rod 313, reducing the situation where the connecting column 312 slides at different distances on the synchronizing rod 311. Due to the setting of the connecting column 312, the situation of insufficient pushing force on the cylinder caused by the inconsistent rotation angle of the rotating plate 221 is reduced, and the consistency of the rotation of the rotating plate 221 when the cylinder gap is aligned is improved.

[0038] When the cylinder is placed inside the circle formed by the covering sheet 214, the rubber plate 322 and the resistance plate 323 are located at the bottom of the cylinder. When the deformation plate 223 rotates upward under the drive of the rotating plate 221, the rubber plate 322 will contact the bottom of the cylinder. As the deformation plate 223 continues to move, the rubber plate 322 will rotate towards the main body 1 under the influence of pressure. The top of the rubber plate 322 will be flattened by the outer surface of the cylinder. At this time, the rubber plate 322 and the resistance plate 323 will be on the same horizontal plane. When the welding is finished and the parts begin to reset, the inner wall of the covering sheet 214 will gradually move away from the outer surface of the cylinder. At this time, the deformation plate 223 will be on the side of the synchronous rod 311 closer to the main body 1. Pushed by the return spring, the cylinder slides away from the connecting post 312. At this time, the moving plate 321 and the rubber plate 322 will drive the top cylinder to move synchronously under the influence of friction. When the deformation plate 223 gradually resets, the moving plate 321 will continuously move away from the surface of the cylinder. When the moving plate 321 moves away to a certain distance, the flattened rubber plate 322 will reset. The reset of the rubber plate 322 will provide an additional pushing force to the top cylinder, so that the cylinder will quickly move away from the covering ring of the covering piece 214 when the welding is finished. This reduces the situation where the cylinder gets stuck inside the circle formed by the covering piece 214, which would make it inconvenient to remove. This improves the overall efficiency of the cylinder during welding.

[0039] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-temperature resistant stainless steel welded pipe production equipment, comprising a main body (1), characterized in that, Also includes: Anti-deviation mechanism (2), the anti-deviation mechanism (2) is installed on the side wall of the main body (1), the operation of the anti-deviation mechanism (2) can reduce the tilting situation when the cylinder gap is aligned; The auxiliary mechanism (3) is installed at the bottom of the anti-deviation mechanism (2). The operation of the auxiliary mechanism (3) can prevent the anti-deviation mechanism (2) from squeezing the cylinder to be welded into an elliptical shape when it is in operation.

2. The high-temperature resistant stainless steel welded pipe production equipment according to claim 1, characterized in that: The main body (1) includes: Alignment component (11), the alignment component (11) is disposed on the top inner wall of the main body (1); Welding assembly (12), which is located on top of the main body (1), performs welding on the cylindrical gap.

3. The high-temperature resistant stainless steel welded pipe production equipment according to claim 2, characterized in that: The anti-deviation mechanism (2) includes: Covering component (21), which is disposed at the bottom of alignment component (11), and the operation of covering component (21) can compress the cylinder; Anti-protrusion component (22) is disposed at the bottom of the covering component (21).

4. The high-temperature resistant stainless steel welded pipe production equipment according to claim 3, characterized in that: The auxiliary mechanism (3) includes: Synchronization component (31), the synchronization component (31) being disposed on the back side of anti-protrusion component (22); The pull-out component (32) is disposed on top of the anti-protrusion component (22). The operation of the pull-out component (32) can pull out the cylinder after welding is completed.

5. The high-temperature resistant stainless steel welded pipe production equipment according to claim 4, characterized in that: The alignment component (11) includes two alignment plates (111) that are slidably connected to the inner wall of the top of the body (1). The two alignment plates (111) are symmetrically distributed around the main body (1), and the side wall of the main body (1) is fixedly connected with a placement rod (112). The placement rod (112) is located at the bottom of the alignment plate (111).

6. The high-temperature resistant stainless steel welded pipe production equipment according to claim 5, characterized in that: The welding assembly (12) includes a sliding block (121) fixedly connected to the top of the main body (1), and a welding gun holder (122) is slidably connected to the side wall of the sliding block (121).

7. The high-temperature resistant stainless steel welded pipe production equipment according to claim 5, characterized in that: The covering component (21) includes a toggle plate (211) fixedly connected to the bottom of the alignment plate (111), and a push rod (212) is provided on the left side of the toggle plate (211). A push plate (213) is slidably connected between the two push rods (212); The bottom of the push plate (213) is provided with two covering pieces (214), and the two covering pieces (214) are symmetrically distributed with the main body (1) as the center; The two covering pieces (214) are slidably connected, and the side wall of the push rod (212) is fixedly connected with an inclined block.

8. The high-temperature resistant stainless steel welded pipe production equipment according to claim 7, characterized in that: The anti-protrusion component (22) includes a rotating plate (221) rotatably connected to the bottom of the push rod (212), and a number of springs (222) are fixedly connected to the side wall of the rotating plate (221). Several of the springs (222) are equidistantly distributed around the rotating plate (221); The end of the spring (222) away from the rotating plate (221) is fixedly connected to the side wall of the push rod (212); Each set of springs (222) has two deformation plates (223) at its bottom, and the two deformation plates (223) are arranged in a cross pattern; The deformable plate (223) slides through the rotating plate (221) to the side wall of another rotating plate (221); The two deformable plates (223) are slidably connected.

9. The high-temperature resistant stainless steel welded pipe production equipment according to claim 5, characterized in that: The synchronization component (31) includes a synchronization rod (311) slidably connected inside the main body (1), and two connecting columns (312) are slidably connected to the side wall of the synchronization rod (311). The two connecting posts (312) are symmetrically distributed around the synchronizing rod (311), and the end of the connecting post (312) away from the synchronizing rod (311) is slidably connected to the rotating plate (221); The outer surface of the connecting column (312) is rotatably connected to a connecting rod (313), and the two connecting rods (313) are rotatably connected. The sidewalls of the two connecting rods (313) are slidably connected to a limiting rod (314). Among them, the synchronizing rod (311) is fixedly connected to the reset spring on the side near the main body (1).

10. The high-temperature resistant stainless steel welded pipe production equipment according to claim 8, characterized in that: The pull-out component (32) includes a movable plate (321) fixedly connected to the top of the deformable plate (223) away from the main body (1). A plurality of rubber plates (322) are fixedly connected to the top of the movable plate (321), and the plurality of rubber plates (322) are equidistantly distributed with respect to the movable plate (321); A resistance plate (323) is fixedly connected to the top of the rubber plate (322); The movable plate (321) is located inside the covering sheet (214).

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