Bending detection device for pipe production

Abstract

The invention relates to the technical field of pipe detection equipment. The invention discloses a bending detection device for pipe production, which comprises a pipe feeding frame, one end of the top of the pipe feeding frame is inclined downwards to the other end, and a bending detection device is arranged on one side of the pipe feeding frame. The curvature detection device comprises a driving detection assembly, an attaching sliding assembly, a pipe clamping assembly, a matched feeding assembly and a drawing assembly. The driving detection assembly is arranged on one side of the pipe feeding frame. Through mutual cooperation of the driving detection assembly, the attaching sliding assembly, the pipe clamping assembly, the matching feeding assembly and the drawing assembly with the classification discharging device, batch detection of pipes can be achieved, the curvature can be visually measured or judged, operation is convenient and fast, and the production efficiency is improved. And after detection is completed, qualified pipes and unqualified pipes can be automatically classified, so that subsequent treatment of detection personnel is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of pipe detection equipment, in particular to a curvature detection device for pipe production. Background Art

[0002] Pipes are widely used in our daily life and can be processed into water pipes, door handles, etc. In the pipe manufacturing industry, the national standard has requirements for the curvature of PVC plastic pipes, which cannot exceed 0.5%. Before the pipes leave the factory, the curvature of the pipes needs to be tested. At present, the curvature of the pipes is tested using vernier calipers and metal rulers. This detection method is relatively primitive and cumbersome to operate. There is a lack of a pipe curvature detection device that can perform batch detection on pipes, and the curvature can be measured or judged more intuitively, is easy to operate, and can automatically classify qualified and unqualified pipes after the test is completed, so that the inspectors can carry out subsequent processing. Summary of the invention

[0003] The purpose of the present invention is to provide a curvature detection device for pipe production to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: including a pipe loading rack, the pipe loading rack is arranged on a horizontal plane, one end of the top of the pipe loading rack is arranged to tilt downward toward the other end, a curvature detection device is provided on one side of the pipe loading rack, the curvature detection device includes a driving detection component, a fitting sliding component, a pipe clamping component, a matching feeding component and a drawing component, the driving detection component is arranged on one side of the pipe loading rack, the fitting sliding component is arranged at the bottom of the upper end of the driving detection component, the pipe clamping component is arranged on the side of the fitting sliding component away from the pipe loading rack, the matching feeding component is arranged at the side end of the fitting sliding component and the pipe loading rack, the drawing component is arranged directly above the fitting sliding component, and a classification unloading device is arranged below the fitting sliding component.

[0004] Preferably, the drive detection component includes a universal magnetic sliding plate and a magnetic block. The universal magnetic sliding plate is arranged on one side of the pipe loading rack. The middle part of the upper end of the universal magnetic sliding plate is hollowed out, and both ends of the bottom of the universal magnetic sliding plate are magnetically connected to a magnetic block.

[0005] Preferably, the fitting sliding assembly comprises a mounting plate, an annular bracket, a driving rod, a driving sleeve, a fitting ball, a connecting block, a driving screw and a driving plate. The mounting plate is arranged directly below the universal magnetic sliding plate, and the two sides of the top of the mounting plate are respectively connected to the bottoms of the two magnetic blocks. An annular bracket is rotatably arranged on the side of the mounting plate away from the pipe loading rack, and the annular bracket and the mounting plate are provided with through holes of the same size at the center of the circle. A plurality of openings are evenly arranged at equal angles on the outer side of the annular bracket, and a driving sleeve is rotatably arranged at each opening, and a driving rod is slidably connected to each driving sleeve. A plurality of driving rods are evenly arranged in a circle on the annular bracket, and one end of each driving rod is rotatably connected to the side end of the mounting plate, and one end of each driving rod close to the center of the annular bracket is rotatably provided with a fitting ball. Two connecting blocks are provided, one of which is rotatably provided on the side end of the mounting plate, and the other connecting block is rotatably provided on the side end of the annular bracket. One end of the driving screw rod passes through the side end of the connecting block provided on the mounting plate and is rotatably connected thereto, and the threaded end of the driving screw rod passes through the side end of the other connecting block and is threadably connected thereto, and the driving plate is provided on the end of the driving screw rod that is not provided with a thread.

[0006] Preferably, the pipe clamping assembly includes a mounting seat, a rotating shaft, a rotating disk, a driving groove, a sliding guide rail, a sliding block and a clamping block. The mounting seat is arranged on a side of the mounting disk away from the pipe loading rack, the rotating shaft passes through the side end of the mounting seat and is rotatably connected thereto, the center of the rotating disk passes through the rotating shaft and is fixedly connected thereto, the side end of the rotating disk is circularly and evenly provided with a plurality of driving grooves, and the driving grooves are arc-shaped, the mounting seat is provided with a side of the rotating disk and is circularly and evenly provided with a plurality of sliding guide rails, and each sliding guide rail is slidably connected to a sliding block, and each sliding block is slidably connected to a driving groove respectively, and a clamping block is provided at the end of each sliding block away from the sliding guide rail.

[0007] Preferably, the mating feeding assembly includes a first gear, a driving motor, a first toothed rod, a second toothed rod, a universal connector and a feeding block, the driving motor is arranged on one side of the pipe feeding rack, the first gear is arranged on the output end of the driving motor, the first toothed rod and the second toothed rod are respectively arranged at the upper and lower ends of the first gear, the toothed ends of the first toothed rod and the second toothed rod are both meshed with the first gear, one end of the first toothed rod is connected to one end of the universal connector, the side end of the mounting plate is connected to the other end of the universal connector, one end of the second toothed rod passes through the side end of the pipe feeding rack and slides horizontally therewith, a feeding block is provided at the end of the second toothed rod, and the feeding block is located on the side of the top of the pipe feeding rack away from the mounting plate.

[0008] Preferably, the drawing assembly includes a first rotating drum, a second rotating drum, drawing paper, a drawing pen and an adjusting knob, the first rotating drum and the second rotating drum are respectively rotatably arranged at two ends of the hollow part of the universal magnetic sliding plate, the two ends of the drawing paper are respectively wound on the first rotating drum and the second rotating drum, the drawing pen is vertically arranged on the top of the mounting plate, and the drawing end of the drawing pen contacts the bottom surface of the drawing paper, and the adjusting knob is arranged at the rotating connection between the first rotating drum and the universal magnetic sliding plate.

[0009] Preferably, the classification unloading device includes a classification component and a linkage component, the classification component is arranged directly below the universal magnetic sliding plate and the pipe loading rack, the linkage component is arranged at the side end of the classification component, the classification component includes an unloading table, a classification lever and a classification axis, the unloading table is arranged directly below the universal magnetic sliding plate, the top of the unloading table is arranged to be inclined downward, a classification axis is rotatably arranged in the middle of one end of the unloading table close to the pipe loading rack, one end of the classification lever is connected to the classification axis, and the other end of the classification lever is in contact with one side of the top of the unloading table.

[0010] Preferably, the linkage assembly includes a pulley, a transmission belt, a mounting shaft, a second gear, a third toothed rod, a first trigger rod, a second trigger rod, a fixing plate and a spring, the mounting shaft being vertically and rotatably arranged on a side of the unloading platform away from the pipe loading rack, a slot being arranged at the lower end of the unloading platform, two pulleys being arranged, one of which is arranged on the classification shaft and located in the slot, and the other pulley being arranged on the mounting shaft, the transmission belt being sleeved on the two pulleys, and the transmission belt being located in the slot, the second gear being arranged at the top end of the mounting shaft, the third toothed rod being horizontally arranged on one side of the second gear and meshing with it, and the third toothed rod being laterally slidably matched with the ground, the first trigger rod being vertically arranged at the bottom of the mounting plate, the second trigger rod being vertically arranged at the top of the third toothed rod, and the first trigger rod and the second trigger rod being positioned correspondingly, and the bottom height of the first trigger rod being lower than the top height of the second trigger rod, a fixing plate being arranged on a side of the second trigger rod away from the unloading rack, and a spring being arranged between the fixing plate and the second trigger rod.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the end of the pipe is sleeved on the outside of a plurality of clamping blocks, and the rotating shaft is rotated to drive the rotating disk to rotate. With the cooperation of the driving groove, the plurality of sliding blocks are driven to slide synchronously toward the outside of the rotating disk on the sliding guide rail until the plurality of clamping blocks are in contact with the inner wall of the pipe, thereby clamping the end of the pipe, making the pipe in a horizontal and relatively stable state, and the clamping and fixing effect can be achieved for pipes of different diameters.

[0012] In the present invention, when the mounting plate and the annular bracket are located at the outside of the pipe, the rotating driving plate drives the driving screw to rotate, thereby driving one of the connecting blocks to slide on the driving screw, thereby driving the annular bracket to rotate on the mounting plate. During the rotation of the mounting plate, the driving sleeve is driven to slide on the driving rod, so that the driving rod deflects a certain angle, thereby driving a plurality of fitting balls to synchronously approach the outside of the pipe and contact it. Then, the driving motor is controlled to work, driving the annular bracket to move from one end of the pipe to the other end. During the movement, the fitting balls always rotate in contact with the surface of the pipe, and the mounting plate rotates along the pipe. The magnetic block moves on the surface of the material. If the pipe is straight, the magnetic block moves in a straight line on the universal magnetic sliding plate. If some pipes have a certain curvature, the universal connector rotates adaptively, thereby controlling the installation plate to move in accordance with the curvature of the pipe, and the magnetic block moves synchronously on the universal magnetic sliding plate according to the curvature of the pipe. At the same time, the drawing pen draws corresponding straight lines or curves on the drawing paper according to the moving trajectory of the installation plate. Subsequent staff only need to draw straight lines on both sides of the drawn curve to measure the curvature of the pipe, which is convenient and quick.

[0013] In the present invention, after the curvature drawing and recording of the pipe is completed, in order to avoid the overlap of the drawn curves caused by batch curvature measurement, the first rotating drum can be driven to rotate by turning the adjustment knob to roll up the part of the drawing paper where the curvature lines are drawn, thereby exposing the blank part of the drawing paper to facilitate continuous curvature detection.

[0014] In the present invention, when the curvature of the pipe is detected, the mounting plate moves along the outside of the pipe while the loading block is synchronously reset to its initial position in the pipe loading rack, thereby removing the obstruction to a number of pipes arranged subsequently. Since the top of the pipe loading rack is inclined, a pipe automatically slides down to the side end of the loading block, so that after the inspection of the pipe in the inspection state is completed, the inspection of the next pipe can be carried out immediately.

[0015] In the present invention, after the curvature detection of the pipe is completed, the clamping of the pipe is released and the pipe is removed from the mounting plate, and the pipe automatically falls on the unloading platform. Since the unloading platform is inclined, the pipe naturally slides on the unloading platform. According to the previous detection results, if the pipe detection result is qualified, that is, it is in a straight state, then when the mounting plate slides along the outer side of the pipe to the end of the pipe, the first trigger rod at the bottom of the mounting plate will contact the second trigger rod and drive it to move a distance, so that the third toothed rod drives the second gear to rotate, and under the cooperation of the pulley and the transmission belt, one end of the classification lever is driven to switch from the state of contact with one end of the unloading platform to the state of contact with the other side. The state of contact will change the sliding trajectory of the pipe on the unloading table, so that it slides down from one side of the end of the unloading table for collection; if the pipe has a certain curvature and the curvature exceeds the standard value, the first trigger rod will be staggered with the second trigger rod, so as not to drive the classification lever to deflect, causing the pipe to slide down from the other side of the unloading table, thereby achieving the effect of qualified pipes and unqualified pipes being unloaded and collected from different sides of the unloading table respectively, thereby achieving the effect of automatic classification of qualified and unqualified pipes, and through the set spring, the classification lever can be driven to reset before the next pipe inspection, so as to facilitate subsequent classification work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the local structure of the present invention Figure 1 ; Figure 3 It is a three-dimensional structural schematic diagram of the pipe clamping assembly in the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the fitted sliding assembly in the present invention; Figure 5 It is a schematic diagram of the local structure of the present invention Figure 2 ; Figure 6 It is a partial structural cross-sectional view of the present invention; Figure 7 A top view of the classification component of the present invention; Figure 8 It is a cross-sectional view of the fitting sliding assembly and the classification unloading device in the present invention; Fig. 9 It is a three-dimensional structural schematic diagram of the fitted sliding component and the linkage component in the present invention.

[0017] In the figure: 1. pipe loading rack; 2. curvature detection device; 21. drive detection assembly; 211. universal magnetic sliding plate; 212. magnetic block; 22. fitting sliding assembly; 221. mounting plate; 222. annular bracket; 223. driving rod; 224. driving sleeve; 225. fitting ball; 226. connecting block; 227. driving screw rod; 228. driving plate; 23. pipe clamping assembly; 231. mounting seat; 232. rotating shaft; 233. rotating plate; 234. driving groove; 235. sliding guide rail; 236. sliding block; 237. clamping block; 24. matching loading assembly; 241. first gear; 242. driving motor machine; 243, first toothed rod; 244, second toothed rod; 245, universal joint; 246, loading block; 25, drawing component; 251, first rotating drum; 252, second rotating drum; 253, drawing paper; 254, drawing pen; 255, adjustment knob; 3, classification unloading device; 31, classification component; 311, unloading table; 312, classification lever; 313, classification shaft; 32, linkage component; 321, pulley; 322, transmission belt; 323, mounting shaft; 324, second gear; 325, third toothed rod; 326, first trigger rod; 327, second trigger rod; 328, fixing plate; 329, spring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figures 1 to 9 The present invention provides a technical solution: it includes a pipe loading rack 1, the pipe loading rack 1 is arranged on a horizontal plane, one end of the top of the pipe loading rack 1 is inclined downward toward the other end, a curvature detection device 2 is provided on one side of the pipe loading rack 1, and the curvature detection device 2 includes a driving detection component 21, a fitting sliding component 22, a pipe clamping component 23, a matching loading component 24 and a drawing component 25, the driving detection component 21 is arranged on one side of the pipe loading rack 1, the fitting sliding component 22 is arranged at the bottom of the upper end of the driving detection component 21, the pipe clamping component 23 is arranged on the side of the fitting sliding component 22 away from the pipe loading rack 1, the matching loading component 24 is arranged at the side end of the fitting sliding component 22 and the pipe loading rack 1, the drawing component 25 is arranged directly above the fitting sliding component 22, and a classification unloading device 3 is arranged below the fitting sliding component 22.

[0020] In this embodiment, Figures 1 to 6 As shown, the driving detection component 21 includes a universal magnetic sliding plate 211 and a magnetic block 212. The universal magnetic sliding plate 211 is arranged on one side of the pipe loading rack 1. The middle part of the upper end of the universal magnetic sliding plate 211 is hollowed out, and both ends of the bottom of the universal magnetic sliding plate 211 are magnetically connected to a magnetic block 212. The fitting sliding assembly 22 includes a mounting plate 221, an annular bracket 222, a driving rod 223, a driving sleeve 224, a fitting ball 225, a connecting block 226, a driving screw 227 and a driving plate 228. The mounting plate 221 is arranged directly below the universal magnetic sliding plate 211, and the two sides of the top of the mounting plate 221 are respectively connected to the bottoms of the two magnetic blocks 212. The mounting plate 221 is rotatably provided with an annular bracket 222 on the side away from the pipe loading rack 1, and the annular bracket 222 and the mounting plate 221 are provided with through holes of the same size at the center of the circle, and a plurality of openings are evenly arranged at equal angles on the outer side of the annular bracket 222, and a driving sleeve 224 is rotatably provided at each opening, and a driving rod 223 is slidably connected to each driving sleeve 224. , a plurality of driving rods 223 are evenly arranged on the annular bracket 222 in a circular shape, and one end of each driving rod 223 is rotatably connected to the side end of the mounting plate 221, and one end of each driving rod 223 close to the center of the annular bracket 222 is rotatably provided with a fitting ball 225, and two connecting blocks 226 are provided, one of which is rotatably provided at the side end of the mounting plate 221, and the other connecting block 226 is rotatably provided at the side end of the annular bracket 222, one end of the driving screw rod 227 passes through the side end of the connecting block 226 provided on the mounting plate 221 and is rotatably connected thereto, the threaded end of the driving screw rod 227 passes through the side end of the other connecting block 226 and is threadedly connected thereto, and the driving plate 228 is provided on the end of the driving screw rod 227 that is not provided with a thread; The pipe clamping assembly 23 includes a mounting seat 231, a rotating shaft 232, a rotating disk 233, a driving groove 234, a sliding guide rail 235, a sliding block 236 and a clamping block 237. The mounting seat 231 is arranged on a side of the mounting disk 221 away from the pipe loading rack 1, the rotating shaft 232 passes through the side end of the mounting seat 231 and is rotatably connected thereto, the center of the rotating disk 233 passes through the rotating shaft 232 and is fixedly connected thereto, the side end of the rotating disk 233 is evenly arranged with a plurality of driving grooves 234 in a circular shape, and the driving grooves 234 are arranged in an arc shape, the mounting seat 231 is provided with a rotating disk 233 on one side thereof and evenly arranged with a plurality of sliding guide rails 235 in a circular shape, and each sliding guide rail 235 is slidably connected with a sliding block 236, and each sliding block 236 is slidably connected with a driving groove 234 respectively, and each sliding block 236 is provided with a clamping block 237 at one end away from the sliding guide rail 235; The matching feeding assembly 24 includes a first gear 241, a driving motor 242, a first toothed rod 243, a second toothed rod 244, a universal connector 245 and a feeding block 246. The driving motor 242 is arranged on one side of the pipe feeding rack 1. The first gear 241 is arranged on the output end of the driving motor 242. The first toothed rod 243 and the second toothed rod 244 are respectively arranged at the upper and lower ends of the first gear 241. The toothed ends of the first toothed rod 243 and the second toothed rod 244 are both meshed with the first gear 241. One end of the first toothed rod 243 is connected to one end of the universal connector 245. The side end of the mounting plate 221 is connected to the other end of the universal connector 245. One end of the second toothed rod 244 passes through the side end of the pipe feeding rack 1 and slides with it transversely. A feeding block 246 is provided at the end of the second toothed rod 244, and the feeding block 246 is located on the top of the pipe feeding rack 1 away from the mounting plate 221. The drawing assembly 25 includes a first rotating drum 251, a second rotating drum 252, a drawing paper 253, a drawing pen 254 and an adjusting knob 255. The first rotating drum 251 and the second rotating drum 252 are respectively rotatably arranged at two ends of the hollowed-out portion of the universal magnetic attraction sliding plate 211. Two ends of the drawing paper 253 are respectively wound on the first rotating drum 251 and the second rotating drum 252. The drawing pen 254 is vertically arranged on the top of the mounting plate 221, and the drawing end of the drawing pen 254 contacts the bottom surface of the drawing paper 253. The adjusting knob 255 is arranged at the rotation connection between the first rotating drum 251 and the universal magnetic attraction sliding plate 211. When the curvature of the pipe is detected, the batches of pipes are first placed on the loading end at the top of the pipe loading rack 1 in sequence, the tail end of the outermost pipe contacts the loading block 246, and the other end of the pipe corresponds to the position of the mounting plate 221. The driving motor 242 is controlled to drive the first gear 241 to rotate, thereby driving the first toothed rod 243 and the second toothed rod 244 to move laterally toward the opposite side simultaneously, so that the loading block 246 moves toward the pipe clamping assembly 23, and the sliding assembly 22 moves toward the pipe synchronously, and the end of the pipe is controlled to pass through the center of the mounting plate 221 and the annular bracket 222 with manual assistance. When the mounting plate 221 is at the tail end of the pipe, the other end of the pipe is at a position close to the pipe clamping assembly 23, and the pipe is completely separated from the pipe loading rack 1. At the same time, the loading block 246 blocks the subsequent pipes to prevent the subsequent pipes from being loaded. The end of the pipe is sleeved on the outside of a plurality of clamping blocks 237, and the rotating shaft 232 is rotated to drive the rotating disk 233 to rotate, and the plurality of sliding blocks 236 are driven to slide synchronously to the outside of the rotating disk 233 on the sliding guide rail 235 with the cooperation of the driving groove 234, until the plurality of clamping blocks 237 are in contact with the inner wall of the pipe, thereby clamping the end of the pipe, so that the pipe is in a horizontal and relatively stable state, and the clamping and fixing effect can be achieved for pipes of different diameters; When the mounting disk 221 and the annular bracket 222 are located on the outside of the pipe, the rotating driving disk 228 drives the driving screw 227 to rotate, thereby driving one of the connecting blocks 226 to slide on the driving screw 227, thereby driving the annular bracket 222 to rotate on the mounting disk 221. During the rotation of the mounting disk 221, the driving sleeve 224 is driven to slide on the driving rod 223, so that the driving rod 223 deflects a certain angle, thereby driving a plurality of fitting balls 225 to synchronously approach the outside of the pipe and contact it. Then, the driving motor 242 is controlled to work, driving the annular bracket 222 to move from one end of the pipe to the other end. During the movement, the fitting balls 225 always rotate in contact with the surface of the pipe, and The mounting plate 221 moves along the surface of the pipe. If the pipe is straight, the magnetic block 212 moves along a straight line on the universal magnetic sliding plate 211. If some pipes have a certain curvature, the universal connector 245 rotates adaptively, thereby controlling the mounting plate 221 to move in accordance with the curvature of the pipe, and the magnetic block 212 moves synchronously on the universal magnetic sliding plate 211 according to the curvature of the pipe. At the same time, the drawing pen 254 draws a corresponding straight line or curve on the drawing paper 253 according to the moving track of the mounting plate 221. The subsequent staff only needs to draw straight lines on both sides of the drawn curve to measure the curvature of the pipe, which is relatively convenient and quick. After the curvature drawing and recording of the pipe is completed, in order to avoid the overlap of the drawn curves caused by batch curvature measurement, the first rotating drum 251 can be rotated by turning the adjusting knob 255 to roll up the part of the drawing paper 253 where the curvature lines are drawn, thereby exposing the blank part of the drawing paper 253 to facilitate continuous curvature detection; When the curvature of the pipe is being tested, the mounting plate 221 moves along the outside of the pipe while the loading block 246 is simultaneously reset to its initial position in the pipe loading rack 1, thereby removing the obstruction to the subsequent pipes. Since the top of the pipe loading rack 1 is tilted, a pipe automatically slides down to the side end of the loading block 246, so that after the inspection of the pipe in the inspection state is completed, the inspection of the next pipe can be carried out immediately.

[0021] In this embodiment, Figures 7 to 9As shown, the classification unloading device 3 includes a classification component 31 and a linkage component 32. The classification component 31 is arranged directly below the universal magnetic sliding plate 211 and the pipe loading rack 1, and the linkage component 32 is arranged at the side end of the classification component 31. The classification component 31 includes an unloading platform 311, a classification lever 312 and a classification shaft 313. The unloading platform 311 is arranged directly below the universal magnetic sliding plate 211, and the top of the unloading platform 311 is arranged to be tilted downward. The unloading platform 311 is rotatably provided with a classification shaft 313 in the middle of one end close to the pipe loading rack 1, one end of the classification lever 312 is connected to the classification shaft 313, and the other end of the classification lever 312 is in contact with one side of the top of the unloading platform 311; The linkage assembly 32 includes a pulley 321, a transmission belt 322, a mounting shaft 323, a second gear 324, a third toothed rod 325, a first trigger rod 326, a second trigger rod 327, a fixing plate 328 and a spring 329. The mounting shaft 323 is vertically and rotatably arranged on a side of the unloading platform 311 away from the pipe loading rack 1. A slot is provided at the lower end of the unloading platform 311. Two pulleys 321 are provided, one of which is arranged on the classification shaft 313 and is located in the slot, and the other pulley 321 is arranged on the mounting shaft 323. The transmission belt 322 is sleeved on the two pulleys 321, and the transmission belt 322 is located in the slot. The second gear 324 is arranged at the top end of the mounting shaft 323, the third toothed rod 325 is horizontally arranged at one side of the second gear 324 to mesh with it, and the third toothed rod 325 is horizontally slidably matched with the ground, the first trigger rod 326 is vertically arranged at the bottom of the mounting plate 221, the second trigger rod 327 is vertically arranged at the top of the third toothed rod 325, and the first trigger rod 326 corresponds to the second trigger rod 327 in position, and the bottom height of the first trigger rod 326 is lower than the top height of the second trigger rod 327, a fixing plate 328 is arranged on the side of the second trigger rod 327 away from the unloading rack, and a spring 329 is arranged between the fixing plate 328 and the second trigger rod 327; After the curvature detection of the pipe is completed, the clamping of the pipe is released and it is removed from the mounting plate 221, and the pipe automatically falls on the unloading platform 311. Since the unloading platform 311 is set inclined, the pipe naturally slides on the unloading platform 311. According to the previous detection results, if the pipe detection result is qualified, that is, the pipe is in a straight state, then when the mounting plate 221 slides along the outer side of the pipe to the end of the pipe, the first trigger rod 326 at the bottom of the mounting plate 221 will contact the second trigger rod 327 and drive it to move a distance, so that the third toothed rod 325 drives the second gear 324 to rotate, and under the cooperation of the pulley 321 and the transmission belt 322, one end of the classification lever 312 is driven to switch from the state of contact with one end of the unloading platform 311. The first trigger rod 326 is staggered with the second trigger rod 327 so as not to cause the classification lever 312 to deflect, causing the tube to slide from the other side of the unloading platform 311, thereby achieving the effect of qualified tubes and unqualified tubes being unloaded and collected from different sides of the unloading platform 311, and achieving the effect of automatic classification of qualified and unqualified tubes. The spring 329 is set to reset the classification lever 312 before the next tube inspection, so as to facilitate the subsequent classification work.

[0022] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A curvature detection device for pipe production, characterized in that: The invention comprises a pipe loading rack (1), wherein the pipe loading rack (1) is arranged on a horizontal plane, one end of the top of the pipe loading rack (1) is arranged to be tilted downward toward the other end, and a curvature detection device (2) is provided on one side of the pipe loading rack (1), wherein the curvature detection device (2) comprises a drive detection component (21), a fitting sliding component (22), a pipe clamping component (23), a matching loading component (24) and a drawing component (25), wherein the drive detection component (21) is arranged on the pipe loading rack (1 ), the fitting sliding component (22) is arranged at the bottom of the upper end of the driving detection component (21), the tube clamping component (23) is arranged on the side of the fitting sliding component (22) away from the tube loading rack (1), the matching loading component (24) is arranged at the side ends of the fitting sliding component (22) and the tube loading rack (1), the drawing component (25) is arranged directly above the fitting sliding component (22), and a classification unloading device (3) is arranged below the fitting sliding component (22).

2. A curvature detection device for pipe production according to claim 1, characterized in that: The drive detection component (21) comprises a universal magnetic sliding plate (211) and a magnetic block (212); the universal magnetic sliding plate (211) is arranged on one side of the pipe loading rack (1); the middle portion of the upper end of the universal magnetic sliding plate (211) is hollowed out, and both ends of the bottom of the universal magnetic sliding plate (211) are magnetically connected to a magnetic block (212).

3. A curvature detection device for pipe production according to claim 2, characterized in that: The fitting sliding assembly (22) comprises a mounting plate (221), an annular bracket (222), a driving rod (223), a driving sleeve (224), a fitting ball (225), a connecting block (226), a driving screw (227) and a driving plate (228). The mounting plate (221) is arranged directly below the universal magnetic sliding plate (211), and the two sides of the top of the mounting plate (221) are respectively connected to the bottoms of the two magnetic blocks (212). The mounting plate (221) is rotatably provided with an annular bracket (222) on a side away from the pipe loading rack (1), and the annular bracket (222) and the mounting plate (221) are provided with through holes of the same size at the center of the circle. The outer side of the annular bracket (222) is evenly arranged with a plurality of openings at equal angles, and a driving sleeve (224) is rotatably provided at each opening. A driving rod (223) is rotatably connected to each driving sleeve (224). 23), a plurality of driving rods (223) are evenly arranged on the annular bracket (222) in a circular shape, and one end of each driving rod (223) is rotatably connected to the side end of the mounting plate (221), and one end of each driving rod (223) close to the center of the annular bracket (222) is rotatably provided with a fitting ball (225), two connecting blocks (226) are provided, one of which is rotatably provided on the side end of the mounting plate (221), and the other connecting block (226) is rotatably provided on the side end of the annular bracket (222), one end of the driving screw rod (227) passes through the side end of the connecting block (226) provided on the mounting plate (221) and is rotatably connected thereto, the threaded end of the driving screw rod (227) passes through the side end of the other connecting block (226) and is threadedly connected thereto, and the driving plate (228) is provided on the end of the driving screw rod (227) that is not provided with a thread.

4. A curvature detection device for pipe production according to claim 3, characterized in that: The pipe clamping assembly (23) comprises a mounting seat (231), a rotating shaft (232), a rotating disk (233), a driving groove (234), a sliding guide rail (235), a sliding block (236) and a clamping block (237). The mounting seat (231) is arranged on a side of the mounting disk (221) away from the pipe loading rack (1). The rotating shaft (232) passes through the side end of the mounting seat (231) and is rotatably connected thereto. The center of the rotating disk (233) passes through the rotating shaft (232) and is fixedly connected thereto. The side end of the mounting seat (231) is provided with a plurality of driving grooves (234) evenly distributed in a circular shape, and the driving grooves (234) are arranged in an arc shape. The mounting seat (231) is provided with a rotating disk (233) on one side thereof, and a plurality of sliding guide rails (235) are evenly distributed in a circular shape. Each sliding guide rail (235) is slidably connected to a sliding block (236), and each sliding block (236) is slidably connected to a driving groove (234), and a clamping block (237) is provided at one end of each sliding block (236) away from the sliding guide rail (235).

5. The device for detecting curvature of a pipe according to claim 3, characterized in that: The mating feeding assembly (24) comprises a first gear (241), a driving motor (242), a first toothed rod (243), a second toothed rod (244), a universal connector (245) and a feeding block (246); the driving motor (242) is arranged on one side of the pipe feeding rack (1); the first gear (241) is arranged on the output end of the driving motor (242); the first toothed rod (243) and the second toothed rod (244) are respectively arranged at the upper and lower ends of the first gear (241); the first toothed rod (243) and the second toothed rod (244) are respectively arranged at the upper and lower ends of the first gear (241); The toothed ends of the two toothed rods (244) are meshed with the first gear (241), one end of the first toothed rod (243) is connected to one end of a universal connector (245), the side end of the mounting plate (221) is connected to the other end of the universal connector (245), one end of the second toothed rod (244) passes through the side end of the pipe loading rack (1) and slides therewith in a transverse manner, a loading block (246) is provided at the end of the second toothed rod (244), and the loading block (246) is located on a side of the top of the pipe loading rack (1) away from the mounting plate (221).

6. A curvature detection device for pipe production according to claim 3, characterized in that: The drawing assembly (25) comprises a first rotating drum (251), a second rotating drum (252), drawing paper (253), a drawing pen (254) and an adjusting knob (255); the first rotating drum (251) and the second rotating drum (252) are respectively rotatably arranged at two ends of a hollow portion of a universal magnetic attraction sliding plate (211); two ends of the drawing paper (253) are respectively wound on the first rotating drum (251) and the second rotating drum (252); the drawing pen (254) is vertically arranged on the top of the mounting plate (221), and the drawing end of the drawing pen (254) contacts the bottom surface of the drawing paper (253); and the adjusting knob (255) is arranged at the rotation connection between the first rotating drum (251) and the universal magnetic attraction sliding plate (211).

7. A curvature detection device for pipe production according to claim 2, characterized in that: The classification unloading device (3) comprises a classification component (31) and a linkage component (32); the classification component (31) is arranged directly below the universal magnetic sliding plate (211) and the pipe loading rack (1); the linkage component (32) is arranged at the side end of the classification component (31); the classification component (31) comprises an unloading platform (311), a classification lever (312) and a classification shaft (313); the unloading platform (311) is arranged directly below the universal magnetic sliding plate (211); the top of the unloading platform (311) is arranged to be inclined downward; a classification shaft (313) is rotatably arranged at the middle of one end of the unloading platform (311) close to the pipe loading rack (1); one end of the classification lever (312) is connected to the classification shaft (313); and the other end of the classification lever (312) contacts one side of the top of the unloading platform (311).

8. A curvature detection device for pipe production according to claim 7, characterized in that: The linkage assembly (32) comprises a pulley (321), a transmission belt (322), a mounting shaft (323), a second gear (324), a third toothed rod (325), a first trigger rod (326), a second trigger rod (327), a fixing plate (328) and a spring (329); the mounting shaft (323) is vertically and rotatably arranged on a side of a material unloading platform (311) away from a pipe loading rack (1); a slot is arranged at the lower end of the material unloading platform (311); two pulleys (321) are provided, one of which is arranged on the classification shaft (313) and located in the slot, and the other pulley (321) is arranged on the mounting shaft (323); the transmission belt (322) is sleeved on the two pulleys (321), and the transmission belt (322) is located in the slot. The second gear (324) is arranged at the top end of the mounting shaft (323), the third toothed rod (325) is horizontally arranged on one side of the second gear (324) to mesh with it, and the third toothed rod (325) is horizontally slidably matched with the ground, the first trigger rod (326) is vertically arranged at the bottom of the mounting plate (221), the second trigger rod (327) is vertically arranged at the top of the third toothed rod (325), the first trigger rod (326) and the second trigger rod (327) are corresponding in position, and the bottom height of the first trigger rod (326) is lower than the top height of the second trigger rod (327), a fixing plate (328) is provided on the side of the second trigger rod (327) away from the unloading rack, and a spring (329) is provided between the fixing plate (328) and the second trigger rod (327).

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