Steel lining polyurethane composite pipe production detection device and detection method

Abstract

The invention relates to the technical field of pipeline detection devices, in particular to a steel lining polyurethane composite pipe production detection device and detection method.The steel lining polyurethane composite pipe production detection device comprises a machine base, a carrying structure, a driving structure, a stopping structure, a rotating structure, a detection structure, a shielding structure, a bracket, a positioning groove, a connecting plate and a positioning sleeve; the composite pipe can be carried according to a specific track through cooperation of the driving structure and the carrying structure, the composite pipe is prevented from colliding with detection equipment in the carrying process, so that the use safety is improved, the detected composite pipe can be subjected to speed reduction and limiting through the stopping structure, the detected composite pipe can be conveniently transferred, and the detection efficiency is improved. The composite pipe can be driven to rotate through the rotating structure, all-directional appearance detection is achieved in cooperation with a detection camera of the detection structure and a light supplementing lamp strip, a lens of the detection camera in the detection structure can be protected through the shielding structure when the detection device is idle, and the situation that dust is attached to the lens of the detection camera, and consequently follow-up detection is affected is avoided.

Description

Technical Field

[0001] This invention relates to the field of pipeline testing equipment technology, specifically to a testing device and method for the production of steel-lined polyurethane composite pipes. Background Technology

[0002] Steel-lined polyurethane composite pipes are widely used in mining, chemical, water supply and drainage and other fields due to their excellent wear resistance, corrosion resistance and high pressure resistance. In the production process of steel-lined polyurethane composite pipes, appearance inspection is an important first line of defense to ensure product quality. It can detect defects such as surface scratches, bubbles, and uneven color in time, and prevent unqualified products from entering the market and causing serious consequences. Generally, appearance inspection is carried out by taking pictures of the surface of the pipe using an inspection camera installed on the inspection device.

[0003] However, when inspecting polyurethane-lined steel composite pipes, operators need to use forklifts or other tools to move the pipes into the testing device. Due to the pipes' proximity to the device and the confined space, manual operation during entry and exit is prone to errors and collisions, resulting in poor safety. Furthermore, loading the pipes during testing is inconvenient, requiring machine downtime and impacting efficiency. Coordinating the handling of completed and pending pipes is also difficult. Additionally, the testing camera is exposed to the external environment for extended periods when not in use, especially in dusty factory workshops. Dust easily accumulates on the camera surface, reducing image clarity and decreasing the accuracy of the system's detection of minor defects. This severely affects the accuracy of the test results, potentially allowing substandard products to enter the market and creating safety hazards for future use. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides a production testing device and testing method for steel-lined polyurethane composite pipes.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a steel-lined polyurethane composite pipe production and testing device, including a base, a conveying structure on the base, a driving structure on the conveying structure, a bracket fixedly connected to the base, a blocking structure on the bracket, a rotating structure on the base, a testing structure on the base, a shielding structure on the testing structure, a plurality of positioning grooves on the bracket, and two connecting plates fixedly connected to the base, with a positioning sleeve fixedly connected to the top of the connecting plates;

[0006] The conveying structure includes a connecting seat and a connecting shaft. The connecting seat is fixedly connected to the base, and the connecting shaft is rotatably connected to the connecting seat. Two turntables are fixedly connected to both ends of the connecting shaft. A first guide shaft is rotatably connected to one side of the turntable. Two rocker arms are rotatably connected to the base. The first guide shaft is rolled with the adjacent rocker arm. A second guide shaft is rotatably connected to the rocker arm. A guide rail is fixedly connected to the bottom side of the connecting plate. A sliding sleeve is slidably connected to the outer side of the guide rail. A moving plate is fixedly connected to the sliding sleeve. The moving plate has a first guide groove. A second guide shaft extends into the interior of the first guide groove and is rolled with the moving plate. A second guide groove is provided on the other side of the turntable. A support plate is slidably connected to the moving plate. A connecting rod is slidably connected to the support plate. A third guide shaft is rotatably connected to the connecting rod. The third guide shaft extends into the interior of the adjacent second guide groove and is rolled with the turntable.

[0007] Specifically, the cross-section of the pallet is trapezoidal, and the cross-section of the guide rail is trapezoidal.

[0008] Specifically, the positioning groove has a V-shaped cross-section, and the sliding directions of the support plate and the moving plate are perpendicular to each other.

[0009] Specifically, the drive structure includes a first motor and a first gear. The first motor is mounted on the connecting seat, the first gear is fixedly connected to the output shaft of the first motor, and the second gear is fixedly connected to the connecting shaft. The first gear and the second gear mesh with each other.

[0010] Specifically, the blocking structure includes a rotating shaft and a stop bar. Six rotating shafts are rotatably connected to the bracket, and a stop bar is fixedly connected to each rotating shaft. Four of the rotating shafts are fixedly connected to the bracket with torsion springs, and four of the rotating shafts are fixedly connected with stop blocks. A guide post is fixedly connected between two adjacent rotating shafts, and a stop bar is slidably connected to the guide post. A stop shaft is fixedly connected to the stop bar, and the stop shaft is slidably connected to the bracket. The stop shaft abuts against an adjacent stop bar, and the stop block abuts against an adjacent stop bar. A return spring abuts against the bracket, and two stop blocks are fixedly connected to the bracket, with each of the two stop blocks abutting against an adjacent stop bar.

[0011] Specifically, the guide column has a T-shaped cross-section, and the three adjacent stop bars are linearly and equidistantly distributed.

[0012] Specifically, the rotating structure includes a first support base and a second motor. Two first support bases are fixedly connected to the base, and a second motor is installed on the first support base. A rotating rod is fixedly connected to the output shaft of the second motor, and a pressure roller is rotatably connected to the rotating rod. Four support wheels are rotatably connected to the bracket, and two third motors are installed on the bracket. The output shaft of the third motor is fixedly connected to the adjacent support wheel.

[0013] Specifically, the detection structure includes a connecting frame and detection cameras. The connecting frame is fixedly connected to the base, and multiple detection cameras are installed inside the connecting frame. Two supplementary light strips are also installed inside the connecting frame.

[0014] Specifically, the shielding structure includes a second support base and a fourth motor. The second support base is fixedly connected to the connecting frame, the fourth motor is mounted on the second support base, a connecting block is fixedly connected to the output shaft of the fourth motor, and a baffle is fixedly connected to the connecting block.

[0015] A testing method for a steel-lined polyurethane composite pipe production testing device includes the following steps:

[0016] S1: The composite tube is first moved to the horizontal position at the front end of the bracket by a forklift. Then the drive structure will drive the transport structure to automatically transport the composite tube to the inside of the detection device according to the specified motion trajectory. Then the composite tube can be rotated by the rotating structure. During the rotation of the composite tube, the appearance of the composite tube is photographed and detected by the detection structure.

[0017] S2: After the inspection is completed, the transport structure will transport the inspected composite tube to the inclined position at the rear end of the bracket. At this time, the composite tube will roll on the surface of the bracket under the action of gravity. When the composite tube moves to a certain position, the blocking structure will block and limit the composite tube. Then, the inspected composite tube can be transported and transferred with the help of tools such as forklifts.

[0018] S3: When it is not necessary to inspect the composite tube, the inspection camera inside the inspection structure can be shielded and protected by the shielding structure.

[0019] The beneficial effects of this invention are:

[0020] (1) The steel-lined polyurethane composite pipe production testing device of the present invention can be used to transport the composite pipe to the horizontal position at the front end of the bracket by a forklift when the composite pipe needs to be tested. Then the transport structure will automatically transport the composite pipe to the inside of the testing device for testing according to the specified movement trajectory. Since the space around the bracket is large, collision can be avoided when the composite pipe is placed on the bracket. The transport structure will transport the composite pipe along a specific trajectory, so collision can also be avoided, thereby effectively improving the safety of the test.

[0021] (2) The steel-lined polyurethane composite pipe production and testing device of the present invention, after the test is completed, the transport structure will transport the composite pipe after the test to the inclined position at the rear end of the bracket. At this time, the composite pipe will roll on the surface of the bracket under the action of gravity. The blocking structure can slow down the rolling composite pipe. When the composite pipe moves to a certain position, the blocking structure will block and limit the composite pipe. Then, the composite pipe after the test can be transported and transferred with tools such as forklifts. Since the space around the composite pipe is large during the transfer process, collisions can be avoided, thereby improving the safety of the test.

[0022] (3) The steel-lined polyurethane composite pipe production inspection device of the present invention can take pictures of the surface of the composite pipe through the inspection structure. During the shooting process, the composite pipe can be rotated by the rotating structure, thereby realizing the all-round inspection of the composite pipe. When the composite pipe does not need to be inspected, the inspection camera inside the inspection structure can be shielded and protected by the shielding structure, thereby preventing dust from accumulating on the lens of the inspection camera when the composite pipe does not need to be inspected, and ensuring the accuracy of subsequent inspection. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of a steel-lined polyurethane composite pipe production and testing device provided by the present invention;

[0025] Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below;

[0026] Figure 3 This is a schematic diagram of the connection structure between the base and the connecting plate of the present invention;

[0027] Figure 4 This is a schematic diagram of the connection structure between the turntable and the second guide groove of the present invention;

[0028] Figure 5 This is a schematic diagram of the connection structure between the first guide shaft and the rocker arm of the present invention;

[0029] Figure 6 This is a schematic diagram of the connection structure between the bracket and the support wheel of the present invention;

[0030] Figure 7 This is a schematic diagram of the connection structure between the abutment and the guide post of the present invention;

[0031] Figure 8 for Figure 7 The enlarged schematic diagram of section B is shown below;

[0032] Figure 9 This is a schematic diagram of the connection structure between the connecting frame and the detection camera of the present invention;

[0033] Figure 10 This is a schematic diagram of the connection structure between the first support base and the second motor of the present invention.

[0034] In the diagram: 1. Base; 2. Transport structure; 201. Connecting seat; 202. Connecting shaft; 203. Turntable; 204. First guide shaft; 205. Swing rod; 206. Second guide shaft; 207. First guide groove; 208. Moving plate; 209. Guide rail; 210. Sliding sleeve; 211. Second guide groove; 212. Third guide shaft; 213. Connecting rod; 214. Support plate; 3. Drive structure; 301. First motor; 302. First gear; 303. Second gear; 4. Blocking structure; 401. Rotating shaft; 402. Stop bar; 403. Torsion spring 404. Abutment block; 405. Abutment rod; 406. Guide post; 407. Stop shaft; 408. Return spring; 5. Rotating structure; 501. First support seat; 502. Second motor; 503. Rotating rod; 504. Pressure roller; 505. Third motor; 506. Support wheel; 6. Detection structure; 601. Connecting frame; 602. Detection camera; 603. Supplementary light strip; 7. Shielding structure; 701. Second support seat; 702. Fourth motor; 703. Connecting block; 704. Baffle; 8. Bracket; 9. Positioning groove; 10. Connecting plate; 11. Positioning sleeve. Detailed Implementation

[0035] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, the steel-lined polyurethane composite pipe production and testing device of the present invention includes a base 1, a conveying structure 2 on the base 1, a driving structure 3 on the conveying structure 2, a bracket 8 fixedly connected to the base 1, a blocking structure 4 on the bracket 8, a rotating structure 5 on the base 1, a testing structure 6 on the base 1, a shielding structure 7 on the testing structure 6, a plurality of positioning grooves 9 on the bracket 8, and two connecting plates 10 fixedly connected to the base 1, with a positioning sleeve 11 fixedly connected to the top of the connecting plate 10.

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the conveying structure 2 includes a connecting seat 201 and a connecting shaft 202. The connecting seat 201 is fixedly connected to the base 1, and the connecting shaft 202 is rotatably connected to the connecting seat 201. Two turntables 203 are fixedly connected to both ends of the connecting shaft 202. A first guide shaft 204 is rotatably connected to one side of the turntable 203. Two rocker arms 205 are rotatably connected to the base 1. The first guide shaft 204 is rolled with the adjacent rocker arm 205. A second guide shaft 206 is rotatably connected to the rocker arm 205. A guide rail 209 is fixedly connected to the bottom side of the connecting plate 10. A sliding sleeve 210 is slidably connected to the outer side of the guide rail 209. A moving plate 208 is fixedly connected to the sliding sleeve 210. The movable plate 208 is provided with a first guide groove 207, and a second guide shaft 206 extends into the interior of the first guide groove 207 and is rotatably connected to the movable plate 208. A second guide groove 211 is provided on the other side of the turntable 203. A support plate 214 is slidably connected to the movable plate 208, and a connecting rod 213 is slidably connected to the support plate 214. A third guide shaft 212 is rotatably connected to the connecting rod 213, and the third guide shaft 212 extends into the interior of the adjacent second guide groove 211 and is rotatably connected to the turntable 203. The support plate 214 has a trapezoidal cross-section, the guide rail 209 has a trapezoidal cross-section, and the positioning groove 9 has a V-shaped cross-section. The support plate 214 and the movable plate 208 slide... The directions of movement are perpendicular to each other. The drive structure 3 includes a first motor 301 and a first gear 302. The first motor 301 is mounted on the connecting seat 201. The first gear 302 is fixedly connected to the output shaft of the first motor 301. The second gear 303 is fixedly connected to the connecting shaft 202. The first gear 302 and the second gear 303 mesh with each other. That is, when it is necessary to inspect the composite tube, a forklift can be used to move the composite tube to the front end of the bracket 8. When moving the composite tube, the flange on the composite tube can be located inside the positioning sleeve 11, thereby limiting the left and right position of the composite tube. At the same time, the composite tube is located inside one of the two positioning grooves 9, thereby limiting the front and rear position of the composite tube. Since the bracket 8 is circumferential The enclosed space is relatively large, so collisions will not occur during the placement of the composite tube. After the composite tube is placed, the first motor 301 can be started. The output shaft of the first motor 301 rotates, driving the first gear 302 to rotate. The rotation of the first gear 302 drives the second gear 303 to rotate, which in turn drives the connecting shaft 202 to rotate. The rotation of the connecting shaft 202 drives the two turntables 203 to rotate, which in turn drives the first guide shaft 204 to move inside the swing arm 205. At this time, the swing arm 205 will rotate, which will drive the second guide shaft 206 to move inside the first guide groove 207. Since the curvature of the first guide groove 207 and the curvature of the second guide shaft 206 are equal at this time...Therefore, when the second guide shaft 206 moves inside the first guide groove 207, the moving plate 208 will not move. However, since the turntable 203 rotates, it will drive the second guide groove 211 to move. As the second guide groove 211 rotates, the position of the third guide shaft 212 inside the second guide groove 211 changes. Since the third guide shaft 212 moves from a position with a smaller arc to a position with a larger arc in the second guide groove 211, the rotation of the turntable 203 will cause the third guide shaft 212 to move vertically upward. The upward movement drives the connecting rod 213 to move, which in turn drives the support plate 214 to move. The simultaneous movement of both support plates 214 will lift the composite tube from the inside of the positioning groove 9. Then, as the turntable 203 continues to rotate, the third guide shaft 212 will move in the larger arc section inside the second guide groove 211. Since the arc of the second guide groove 211 does not change at this time, the third guide shaft 212 will not move vertically. Meanwhile, the second guide shaft 206 moves to the vertical position in the middle of the first guide groove 207. Therefore, when the second guide shaft 206 swings... When rod 205 moves, moving plate 208 will move horizontally, and sliding will occur between connecting rod 213 and support plate 214. The composite tube will move horizontally synchronously with moving plate 208. When second guide shaft 206 moves to the top of first guide groove 207, the curvature of first guide groove 207 is equal to the curvature of second guide shaft 206. Therefore, when second guide shaft 206 moves inside first guide groove 207, moving plate 208 will not move horizontally. Then, third guide shaft 212 will move from the second guide groove 211 where the curvature is larger. The composite tube moves from its original position to a position with a smaller arc in the second guide groove 211, causing the pallet 214 to move vertically downwards. The composite tube moves along with the pallet 214 until it is inside the other two positioning grooves 9. The output shaft of the first motor 301 continues to rotate until the turntable 203 has completed one revolution. One revolution of the turntable 203 causes the swing arm 205 to swing once, completing one transport of the composite tube. Because the composite tube moves along a specific trajectory during transport, collisions are avoided, effectively improving the safety of the inspection.

[0038] Specifically, such as Figure 1 , Figure 6 , Figure 7 and Figure 8As shown, the blocking structure 4 includes a rotating shaft 401 and a stop bar 402. Six rotating shafts 401 are rotatably connected to the bracket 8. Stop bars 402 are fixedly connected to the rotating shafts 401. Torsion springs 403 are fixedly connected between four of the rotating shafts 401 and the bracket 8. Abutment blocks 404 are fixedly connected to the four rotating shafts 401. A guide post 406 is fixedly connected between two adjacent rotating shafts 401. A stop bar 405 is slidably connected to the guide post 406. A stop shaft 407 is fixedly connected to the stop bar 405. The stop shaft 407 is slidably connected to the bracket 8. The stop shaft 407 abuts against the adjacent stop bar 402. The abutment block 404 abuts against the adjacent stop bar 402. The abutment rod 405 and the bracket 8 are in contact with each other, and a return spring 408 is provided between them. Two stops 409 are fixedly connected to the bracket 8, and the two stops 409 abut against the adjacent stops 402 respectively. The guide post 406 has a T-shaped cross-section, and the three adjacent stops 402 are linearly and equidistantly distributed. That is, after the test is completed, the first motor 301 is restarted to make the turntable 203 rotate one revolution. The turntable 203 will transport the composite tube after the test to the rear end of the bracket 8. Since the rear end of the bracket is inclined, when the composite tube is placed at the rear end of the bracket 8, the composite tube will roll on the surface of the bracket 8 under the action of gravity. After rolling a certain distance, the composite tube will rotate by contacting one of the two top stop levers 402. At this time, because the stop shaft 407 is located inside the bracket 8 under the action of the return spring 408, the stop levers 402 will not be blocked when rotating, thus allowing the stop levers 402 to rotate significantly. During the rolling process of the composite tube, the contact of the stop levers 402 with the deformation of the torsion spring 403 can slow down the composite tube. When the composite tube rolls to the position of the two bottom stop levers 402, it will contact the stop levers 402. After the stop levers 402 rotate a certain angle, the stop block 409 will block them, thus preventing them from continuing to rotate. At this time, the stop levers 402 will contact and limit the composite tube, preventing the composite tube from falling off the bracket 8. The tube rolls down, and when the stop bar 402 rotates, it drives the abutment block 404 to rotate through the rotating shaft 401. During the rotation of the abutment block 404, it will abut the abutment bar 405 and slide on the guide post 406. The movement of the abutment bar 405 will drive the stop shaft 407 to move from the inside of the bracket 8 to the outside of the bracket 8. Therefore, the stop bar 402 in the middle can be limited, so that the next composite tube can stop moving after abutting the stop bar 402 in the middle. Similarly, after the stop bar 402 in the middle abuts the composite tube, the stop bar 402 at the top can only rotate a small angle. Therefore, it can buffer three composite tubes that have been tested at one time, and the three composite tubes do not abut each other, which facilitates the subsequent transfer work.

[0039] Specifically, such as Figure 1 , Figure 2 , Figure 9 and Figure 10 As shown, the rotating structure 5 includes a first support base 501 and a second motor 502. Two first support bases 501 are fixedly connected to the base 1. The second motor 502 is mounted on the first support base 501. A rotating rod 503 is fixedly connected to the output shaft of the second motor 502. A pressure roller 504 is rotatably connected to the rotating rod 503. Four support wheels 506 are rotatably connected to the bracket 8. Two third motors 505 are mounted on the bracket 8. The output shaft of the third motor 505 is fixedly connected to the adjacent support wheel 506. The detection structure 6 includes a connecting frame 601 and a detection camera 602. The base 1... A connecting frame 601 is fixedly connected to the upper part of the composite tube. Multiple detection cameras 602 are installed inside the connecting frame 601. Two supplementary lighting strips 603 are also installed inside the connecting frame 601. The shielding structure 7 includes a second support base 701 and a fourth motor 702. The second support base 701 is fixedly connected to the connecting frame 601, and the fourth motor 702 is installed on the second support base 701. A connecting block 703 is fixedly connected to the output shaft of the fourth motor 702, and a baffle 704 is fixedly connected to the connecting block 703. That is, when the composite tube is located at the bottom of the multiple detection cameras 602, its bottom end can connect with the four support wheels 506. The composite tube initially comes into contact with the pressure rollers. Then, by simultaneously activating two second motors 502, the output shafts of the second motors 502 rotate, driving the rotating rod 503 to rotate. The rotating rod 503 then moves the pressure roller 504 towards the composite tube. When both pressure rollers 504 simultaneously contact the composite tube, the output shafts of the second motors 502 stop rotating. Next, by simultaneously activating two third motors 505, the output shafts of the third motors 505 rotate, driving the support roller 506 to rotate. The simultaneous rotation of the two support rollers 506 drives the composite tube to rotate. During the rotation of the composite tube, multiple inspection cameras 602 can capture images of its appearance for inspection. During the image capture, supplementary lighting strips 603 are used. The surface of the composite tube can be irradiated, thereby improving the tilt angle of the image. When the detection device is not needed, the fourth motor 702 can be started. The output shaft of the fourth motor 702 rotates, driving the connecting block 703 to rotate. The rotation of the connecting block 703 causes the baffle 704 to move toward the connecting frame 601. When the baffle 704 abuts and seals the connecting frame 601, the output shaft of the fourth motor 702 stops rotating. Therefore, the lens of the detection camera 602 can be shielded and protected by the baffle 704, thus preventing dust from accumulating on the lens of the detection camera 602 when the composite tube is not being detected, ensuring the accuracy of subsequent detection.

[0040] A testing method for a steel-lined polyurethane composite pipe production testing device includes the following steps:

[0041] S1: The composite tube is first moved to the horizontal position at the front end of the bracket 8 by a forklift. Then the drive structure 3 will drive the transport structure 2 to automatically transport the composite tube to the inside of the detection device according to the specified motion trajectory. Then the composite tube can be rotated by the rotation structure 5. During the rotation of the composite tube, the appearance of the composite tube is photographed and detected by the detection structure 6.

[0042] S2: After the inspection is completed, the transport structure 2 will transport the composite tube to the inclined position at the rear end of the bracket 8. At this time, the composite tube will roll on the surface of the bracket 8 under the action of gravity. When the composite tube moves to a certain position, the blocking structure 4 will block and limit the composite tube. Then, the composite tube can be transported and transferred with the help of tools such as forklifts.

[0043] S3: When it is not necessary to inspect the composite tube, the inspection camera 602 inside the inspection structure 6 can be shielded and protected by the shielding structure 7.

[0044] In use, when the composite pipe needs to be inspected, a forklift can be used to move the composite pipe to the front end of the bracket 8. During transport, the flange on the composite pipe is positioned inside the positioning sleeve 11, thus limiting the lateral position of the composite pipe. Simultaneously, the composite pipe is positioned inside two of the positioning grooves 9, thus limiting its front-to-back position. Because the space around the bracket 8 is large, no collision will occur during the placement of the composite pipe. After the composite pipe is placed, the first motor 301 is started. The output shaft of the first motor 301 rotates, driving the first gear 302 to rotate. The rotation of the first gear 302 drives the second gear 303 to rotate, which in turn drives the connecting shaft 202 to rotate. The rotation of turntable 203 will cause the two turntables 203 to rotate. The rotation of turntable 203 will cause the first guide shaft 204 to move inside the rocker arm 205. At this time, the rocker arm 205 will rotate. The rotation of the rocker arm 205 will cause the second guide shaft 206 to move inside the first guide groove 207. Since the arc of the first guide groove 207 and the arc of the second guide shaft 206 are equal at this time, the moving plate 208 will not move when the second guide shaft 206 moves inside the first guide groove 207. However, since the rotation of turntable 203 will cause the second guide groove 211 to move, the position of the third guide shaft 212 inside the second guide groove 211 will change as the second guide groove 211 rotates. Since the third guide shaft 212 moves from the arc of the second guide groove 211... The third guide shaft 212 moves vertically upwards from a position with a smaller curvature to a position with a larger curvature in the second guide groove 211. Therefore, the rotation of the turntable 203 causes the third guide shaft 212 to move vertically upwards. This vertical upward movement of the third guide shaft 212 drives the connecting rod 213 to move, which in turn drives the support plate 214 to move. The simultaneous movement of the two support plates 214 will lift the composite tube from inside the positioning groove 9. Then, as the turntable 203 continues to rotate, the third guide shaft 212 will move in the larger curvature part of the second guide groove 211. Since the curvature of the second guide groove 211 does not change at this time, the third guide shaft 212 will not move vertically. Meanwhile, the second guide shaft 206 moves to the vertical position in the middle of the first guide groove 207. Therefore, when the second guide shaft 212... 06. As the swing arm 205 moves, the moving plate 208 will move horizontally, and the connecting rod 213 and the support plate 214 will slide. The composite tube will move horizontally synchronously with the moving plate 208. When the second guide shaft 206 moves to the top of the first guide groove 207, the curvature of the first guide groove 207 is equal to the curvature of the second guide shaft 206. Therefore, when the second guide shaft 206 moves inside the first guide groove 207, the moving plate 208 will not move horizontally. Then, the third guide shaft 212 will move from the position with a larger curvature of the second guide groove 211 to the position with a smaller curvature of the second guide groove 211, thus causing the support plate 214 to move vertically downward. The composite tube will move together with the support plate 214.Until it is located inside the other two positioning slots 9, the output shaft of the first motor 301 will continue to rotate until the turntable 203 has rotated one revolution. One revolution of the turntable 203 will cause the swing arm 205 to swing once, thus achieving one transport of the composite tube. Because the composite tube moves along a specific trajectory during transport, no collision will occur, effectively improving the safety of the inspection. When the composite tube is at the bottom of the multiple inspection cameras 602, its bottom will contact the four support wheels 506. Then, by simultaneously starting two second motors 502, the output shaft of the second motors 502 rotates, driving the rotating rod 503 to rotate. The rotating rod 503 drives the pressure roller 504 towards the composite tube. When both pressure rollers 504 simultaneously contact the composite tube, the output shaft of the second motors 502 stops rotating. Next, by simultaneously starting two third motors 505, the output shaft of the third motor 505... The rotation of the output shaft drives the support wheel 506 to rotate. The simultaneous rotation of two support wheels 506 drives the composite tube to rotate. During this rotation, multiple inspection cameras 602 can photograph and inspect the composite tube's appearance. During this photographing process, a supplementary light strip 603 illuminates the surface of the composite tube, thereby improving the tilt angle of the photograph. When the inspection device is not needed, the fourth motor 702 can be activated. The output shaft of the fourth motor 702 rotates, driving the connecting block 703 to rotate. The rotation of the connecting block 703 causes the baffle 704 to move towards the connecting frame 601. When the baffle 704 abuts and seals against the connecting frame 601, the output shaft of the fourth motor 702 stops rotating. Therefore, the baffle 704 can shield and protect the lens of the inspection camera 602, preventing dust accumulation on the lens when the composite tube is not being inspected, thus ensuring the accuracy of subsequent inspections.

[0045] After the test is completed, the first motor 301 is restarted to make the turntable 203 rotate one revolution. One revolution of the turntable 203 will transport the tested composite tube to the rear end of the bracket 8. Because the rear end of the bracket is inclined, when the composite tube is placed at the rear end of the bracket 8, it will roll on the surface of the bracket 8 under the action of gravity. After rolling a certain distance, the composite tube will abut against one of the top two stop bars 402 and rotate. At this time, because the stop shaft 407 is located inside the bracket 8 under the action of the return spring 408, the stop bars 402 will not be blocked when rotating, thus allowing the stop bars 402 to rotate significantly. During the rolling process of the composite tube, the abutment of the stop bars 402, combined with the deformation of the torsion spring 403, can slow down the composite tube. When the composite tube rolls to the position of the two bottom stop bars 402, it will abut against the stop bars 402 and move. The stop bars 402 rotate a certain distance... After the angle is adjusted, the stop block 409 will block it to prevent it from continuing to rotate. At this time, the stop rod 402 will contact and limit the composite tube to prevent it from rolling off the bracket 8. When the stop rod 402 rotates, it will drive the stop block 404 to rotate through the rotating shaft 401. During the rotation of the stop block 404, it will contact the stop rod 405 to slide on the guide post 406. The movement of the stop rod 405 will drive the stop shaft 407 to move from the inside of the bracket 8 to the outside of the bracket 8. Therefore, the stop rod 402 in the middle can be limited, so that the next composite tube can stop moving after contacting the stop rod 402 in the middle. Similarly, after the stop rod 402 in the middle contacts the composite tube, the stop rod 402 at the top can only rotate a small angle. Therefore, it can buffer three composite tubes that have been tested at one time, and the three composite tubes do not contact each other, which facilitates the subsequent transfer work.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A production and testing device for steel-lined polyurethane composite pipes, characterized in that, Includes a base (1), a conveying structure (2) on the base (1), a driving structure (3) on the conveying structure (2), a bracket (8) fixedly connected to the base (1), a blocking structure (4) on the bracket (8), a rotating structure (5) on the base (1), a detection structure (6) on the base (1), a shielding structure (7) on the detection structure (6), multiple positioning slots (9) on the bracket (8), and two connecting plates (10) fixedly connected to the base (1), with a positioning sleeve (11) fixedly connected to the top of the connecting plate (10). The conveying structure (2) includes a connecting seat (201) and a connecting shaft (202). The connecting seat (201) is fixedly connected to the base (1), and the connecting shaft (202) is rotatably connected to the connecting seat (201). Two turntables (203) are fixedly connected to both ends of the connecting shaft (202). A first guide shaft (204) is rotatably connected to one side of the turntables (203). Two rocker arms (205) are rotatably connected to the base (1). The first guide shaft (204) is rolled with the adjacent rocker arm (205). A second guide shaft (206) is rotatably connected to the rocker arm (205). A guide rail (209) is fixedly connected to the bottom side of the connecting plate (10). The outer side of the guide rail (209) is slidably connected to... A sliding sleeve (210) is connected to the sliding sleeve (210), and a movable plate (208) is fixedly connected to the sliding sleeve (210). The movable plate (208) is provided with a first guide groove (207). A second guide shaft (206) extends into the interior of the first guide groove (207) and is rotatably connected to the movable plate (208). A second guide groove (211) is provided on the other side of the turntable (203). A support plate (214) is slidably connected to the movable plate (208). A connecting rod (213) is slidably connected to the support plate (214). A third guide shaft (212) is rotatably connected to the connecting rod (213). The third guide shaft (212) extends into the interior of the adjacent second guide groove (211) and is rotatably connected to the turntable (203).

2. The steel-lined polyurethane composite pipe production and testing device according to claim 1, characterized in that: The cross-section of the pallet (214) is trapezoidal, and the cross-section of the guide rail (209) is trapezoidal.

3. The steel-lined polyurethane composite pipe production and testing device according to claim 1, characterized in that: The positioning groove (9) has a V-shaped cross-section, and the sliding directions of the support plate (214) and the moving plate (208) are perpendicular to each other.

4. The steel-lined polyurethane composite pipe production and testing device according to claim 1, characterized in that: The drive structure (3) includes a first motor (301) and a first gear (302). The first motor (301) is mounted on the connecting seat (201). The first gear (302) is fixedly connected to the output shaft of the first motor (301). The second gear (303) is fixedly connected to the connecting shaft (202). The first gear (302) and the second gear (303) mesh with each other.

5. The steel-lined polyurethane composite pipe production and testing device according to claim 1, characterized in that: The blocking structure (4) includes a rotating shaft (401) and a stop bar (402). Six rotating shafts (401) are rotatably connected to the bracket (8). A stop bar (402) is fixedly connected to each rotating shaft (401). Torsion springs (403) are fixedly connected between four of the rotating shafts (401) and the bracket (8). A stop block (404) is fixedly connected to each of the four rotating shafts (401). A guide post (406) is fixedly connected between two adjacent rotating shafts (401). A stop bar is slidably connected to the guide post (406). A rod (405) is fixedly connected to a stop shaft (407), which is slidably connected to a bracket (8). The stop shaft (407) abuts against an adjacent stop rod (402), and the stop block (404) abuts against an adjacent stop rod (405). A return spring (408) abuts against the bracket (8). Two stops (409) are fixedly connected to the bracket (8), and the two stops (409) abut against adjacent stop rods (402) respectively.

6. The steel-lined polyurethane composite pipe production and testing device according to claim 5, characterized in that: The guide post (406) has a T-shaped cross-section, and the three adjacent stop bars (402) are linearly and equidistantly distributed.

7. The steel-lined polyurethane composite pipe production and testing device according to claim 1, characterized in that: The rotating structure (5) includes a first support base (501) and a second motor (502). Two first support bases (501) are fixedly connected to the base (1). A second motor (502) is installed on the first support base (501). A rotating rod (503) is fixedly connected to the output shaft of the second motor (502). A pressure roller (504) is rotatably connected to the rotating rod (503). Four support wheels (506) are rotatably connected to the bracket (8). Two third motors (505) are installed on the bracket (8). The output shaft of the third motor (505) is fixedly connected to the adjacent support wheel (506).

8. The steel-lined polyurethane composite pipe production and testing device according to claim 1, characterized in that: The detection structure (6) includes a connecting frame (601) and a detection camera (602). The connecting frame (601) is fixedly connected to the base (1). Multiple detection cameras (602) are installed inside the connecting frame (601). Two supplementary light strips (603) are installed inside the connecting frame (601).

9. The steel-lined polyurethane composite pipe production and testing device according to claim 8, characterized in that: The shielding structure (7) includes a second support base (701) and a fourth motor (702). The second support base (701) is fixedly connected to the connecting frame (601), and the fourth motor (702) is installed on the second support base (701). A connecting block (703) is fixedly connected to the output shaft of the fourth motor (702), and a baffle (704) is fixedly connected to the connecting block (703).

10. A testing method for a steel-lined polyurethane composite pipe production testing device according to any one of claims 1-9, comprising the following steps: S1: The composite tube is first moved to the horizontal position at the front end of the bracket (8) by a forklift. Then the drive structure (3) will drive the transport structure (2) to automatically transport the composite tube to the inside of the detection device according to the specified motion trajectory. Then the composite tube can be rotated by the rotation structure (5). During the rotation of the composite tube, the appearance of the composite tube is photographed and detected by the detection structure (6). S2: After the inspection is completed, the transport structure (2) will transport the composite tube after the inspection to the inclined position at the rear end of the bracket (8). At this time, the composite tube will roll on the surface of the bracket (8) under the action of gravity. When the composite tube moves to a certain position, the blocking structure (4) will block and limit the composite tube. Then, the composite tube after the inspection can be transported and transferred with the help of tools such as forklifts. S3: When it is not necessary to inspect the composite tube, the inspection camera (602) inside the inspection structure (6) can be shielded and protected by the shielding structure (7).

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