Edge crack depth automatic detection device for steel coil production

Abstract

The invention discloses an automatic edge crack depth detection device for steel coil production, and belongs to the technical field of steel coil production detection, the automatic edge crack depth detection device is provided with a conveying frame for steel coil conveying detection, conveying rollers are rotationally arranged on the inner surface of the conveying frame, and a steel belt body is conveyed between the conveying rollers; comprising a supporting roller which rotates on the inner surface of the conveying frame, and a truss slides on the outer surface of the conveying frame. According to the automatic edge crack depth detection device for steel coil production, the conveying frame facilitating steel coil detection is arranged, flattening conveying use is achieved through the conveying rollers, the position of a steel coil steel belt body is controlled through cooperation with a limiting plate for centering adjustment, and detection use is achieved on the lower side of the steel belt body through a laser detector followed by the limiting plate; the high-speed camera assembled on the lifting frame is synchronously matched, upper detection use is formed, upper and lower simultaneous detection can be formed, the detection effect is improved, and the supporting plate assembled on the high-speed camera can replace different detection devices to work according to the use condition.

Description

Technical Field

[0001] The present invention relates to the technical field of steel coil production inspection, and particularly to an automatic edge crack depth detection device for steel coil production. Background Art

[0002] During the production process of steel coils, defects such as head cracks, tail cracks, and edge cracks will occur after production. Through corresponding detection devices, the edges of the steel coils are detected, and the depth of the edge cracks is automatically detected, thereby improving the quality of the steel coil products when shipped. During use, generally when the steel coil is being wound, manual contact with the machine for detection is prone to unqualified detection effects and omissions.

[0003] In order to overcome the above defects, the prior art (a Chinese patent application with the application number CN200620049231.2 and the application date of December 20, 2006) for the steel coil edge crack depth detection device can conveniently and accurately detect the edge crack depth of the steel coil (strip steel) in the coiled state of the strip steel. Thereby, the actual measured data of the edge crack depth of the steel coil can be directly obtained, and it can be determined whether the steel coil can be directly released, cut on the machine, or directly downgraded, thus avoiding the steel coils with too large edge crack depth from flowing to the next process and preventing its impact on the processing and logistics of the next process, improving the production efficiency of steel coils. There is also the prior art (a Chinese patent application with the application number CN201020140113.9 and the application date of March 24, 2010) for the steel coil edge crack detection device, which can accurately measure the depth and width of the edge cracks of the steel coil before the steel coil is put on the machine. Thus, the most suitable treatment for the steel coil can be made immediately according to the measurement data. Those that do not affect the passing of the plate can be released for production, and those that may affect the passing of the plate are repaired or scrapped, completely avoiding the risk of shutdown and avoiding double losses of quality and economy; it is not affected by the tightness of the steel coil winding, has strong applicability, is convenient to operate and safe. Although the prior art can complete stable detection, during the working process, the detection method is relatively single, and it is not convenient to detect and use the front and back sides of the steel coil material, which is likely to affect the detection effect.

[0004] In view of the above problems, there is an urgent need to innovate and design on the basis of the original automatic edge crack depth detection device for steel coil production. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatic edge crack depth detection device for steel coil production to solve the problems mentioned in the above background art that during the working process, the detection method is relatively single, and it is not convenient to detect and use the front and back sides of the steel coil material, which is likely to affect the detection effect.

[0006] To achieve the above object, the present invention provides the following technical solution: An automatic edge crack depth detection device for steel coil production is provided with a conveying rack for steel coil conveying and detection. A conveying roller rotates on the inner surface of the conveying rack, and a steel strip body is conveyed between the conveying rollers. It includes: a support roller that rotates on the inner surface of the conveying rack, a truss slides on the outer surface of the conveying rack, a lifting frame is connected to the inner surface of the truss in a lifting manner, a straight gear rotates on the lower middle side of the inner surface of the conveying rack, a rack is meshed with the outer surface of the straight gear, a limiting plate is installed on the outer surface of the rack, and a limiting block is installed on the lower surface of the limiting plate and is slidably limited on the lower side of the inner surface of the conveying rack. At the same time, the limiting plate is provided with a following detection mechanism; an angle disc rotates on the upper surface of the lifting frame, and the angle disc is provided with an angle limiting mechanism.

[0007] Preferably, the conveying rack and the rack form a meshing structure through the straight gear, and the racks are arranged at equal angles in the middle section of the inner surface of the straight gear. The rack is embedded and installed on the side of the outer surface of the limiting plate. At the same time, the limiting plate and the conveying rack form a limiting sliding structure through the limiting block.

[0008] Through the above structure, during use, the position of the limiting plate can be effectively controlled to form centering adjustment, and damage to the limiting plate can be avoided. When the side surface of the steel strip body contacts the side surface of the limiting plate, rollers can be nested and assembled on the side surface of the limiting plate. Through the contact of the rollers, it is used to reduce wear during use.

[0009] Preferably, a laser detector is slidably limited on the outer surface of the limiting plate in the following detection mechanism. A detection head is installed on the upper surface of the laser detector, a first telescopic rod is installed on the lower surface of the laser detector, and a first cylinder is telescoped on the outer surface of the first telescopic rod. The first cylinder is installed on the lower surface of the limiting plate.

[0010] Through the above structure, during use, the stability of the assembly of the laser detector can be effectively controlled, and it is arranged at equal angles and staggered in the middle section of the inner surface of the conveying rack to control the detection effect.

[0011] Preferably, the limiting plate and the laser detector form a limiting sliding structure, the laser detector and the detection head form an integral structure, and the laser detector and the first cylinder form a telescopic structure through the first telescopic rod.

[0012] Through the above structure, during use, the use stability of the laser detector can be effectively improved, and fine adjustment can be performed on the detection situation to control the position of the laser detector.

[0013] Preferably, a telescopic rod II rotates on the upper surface of the angle disk in the angle limiting mechanism through an eccentric shaft. A cylinder II is telescoped on the outer surface of the telescopic rod II, and the cylinder II is positioned and rotatably connected to the upper surface of the lifting frame. An angle block is installed on the outer surface of the angle disk. At the same time, a limiting ring is limited and fitted to the outer surface of the angle block, and the limiting ring is nested on the outer surface of the angle disk; a turntable is installed on the lower surface of the angle disk, and the turntable rotates on the inner surface of the lifting frame. A connecting rod rotates on the outer surface of the turntable. At the same time, a pressing member rotates on the side of the outer surface of the connecting rod. A clamping member I is installed on the outer surface of the pressing member. A limiting column penetrates through the outer surface of the clamping member I and is limited and nested on the inner surface of the lifting frame. A supporting plate is installed on the lower surface of the limiting column.

[0014] With the above structure, when in use, the supporting plate is stably assembled, and the stability of the replacement and assembly of the supporting plate is controlled in cooperation with the limiting structure. The use of the lifting frame controls the position limit of the supporting plate carrying different detectors.

[0015] Preferably, the lifting frame and the angle disk form a rotating structure, the angle disk forms a telescopic and rotating structure with the cylinder II through an eccentric shaft and a telescopic rod II, the angle disk and the angle block form an integral structure, and at the same time, the angle disk forms a limiting structure with the limiting ring through the angle block.

[0016] With the above structure, when in use, the rotation of the angle disk can be effectively controlled, and the stability of the rotation of the angle disk is improved and excessive rotation is avoided in cooperation with the use of the angle block and the limiting ring.

[0017] Preferably, the angle disk and the turntable form a coaxial rotating structure through a rotating shaft, the turntable forms a circumferential linear mechanism with the clamping member I through a connecting rod and a pressing member, the clamping member I and the limiting column form a penetrating clamping structure, and at the same time, the limiting column and the supporting plate form an integral structure.

[0018] With the above structure, when in use, the position of the turntable can be effectively controlled by the angle disk in a linkage manner, and the position of the clamping member I can be effectively controlled through the turntable to control the stability of the assembly of the supporting plate and prevent it from falling off.

[0019] Preferably, a belt rotates on the inner surface of the supporting plate. A moving member is installed on the outer surface of the belt and is limited and slid on the inner surface of the supporting plate. A high-speed camera is nested and connected to the inner surface of the moving member. At the same time, a clamping member II is clamped and connected to the inner surface of the high-speed camera and is limited and rotated on the inner surface of the moving member. A compression spring is elastically connected between the clamping member II and the moving member. The tail end of the outer surface of the clamping member II is fitted and connected with an unlocking member, and the unlocking member is limited and slid in the side wall of the moving member.

[0020] With the above structure, during use, the support plate stably assembles the moving parts controlled to be staggered and centered, and connects to a high-speed camera for shooting and detection, improving the detection effect on the upper side of the steel strip body.

[0021] Preferably, the support plate and the moving parts form a sliding structure through a belt, and the moving parts are arranged at equal angles with respect to the central axis of the inner surface of the support plate, and the moving parts and the high-speed camera form a nested structure.

[0022] With the above structure, during use, the stability of the support and adjustment of the moving parts can be improved, thereby controlling the convenience of using the high-speed camera. According to the width of the steel strip body, it can be used to control the position of the high-speed camera.

[0023] Preferably, the moving parts and the high-speed camera form a limiting and clamping structure through a second clamping part, and the second clamping part and the moving parts form a positioning and rotating structure, and the second clamping part and the moving parts form an elastic structure through a compression spring. At the same time, the moving parts and the unlocking part form a sliding structure, and the unlocking part and the second clamping part form an extrusion structure.

[0024] With the above structure, during use, the stability of the assembly of the high-speed camera can be improved, avoiding falling off, and when the high-speed camera is damaged, it will be quickly replaced.

[0025] Compared with the prior art, the beneficial effects of the present invention are: 1. For the automatic edge crack depth detection device for steel coil production, a conveying frame convenient for steel coil detection is provided, and it is flattened and conveyed through conveying rollers. In cooperation with the centering-adjustable limiting plate, the position of the steel strip body of the steel coil is controlled. And through the laser detector following the limiting plate, the lower side of the steel strip body is detected, and at the same time, in cooperation with the high-speed camera assembled on the lifting frame, the upper part is detected, enabling simultaneous upper and lower detection to improve the detection effect. And the support plate for assembling the high-speed camera can replace different detection devices for work according to the usage situation.

[0026] 2. For the automatic edge crack depth detection device for steel coil production, a following detection mechanism is provided. When the steel strip body is conveyed, it will be limited and clamped through the limiting plate to control its centered conveyance, improving the detection convenience. And in cooperation with the centered clamping of the limiting plate, the bottom of the steel strip body can be effectively detected through the portable and finely adjustable laser detector, improving the detection effect.

[0027] 3. The automatic edge crack depth detection device for steel coil production is provided with an angle limit mechanism. Through the cooperation of the angle disc assembled by the lifting frame with the first telescopic rod and the first cylinder, the position of the angle disc is effectively controlled. Thus, the angle block assembled with the angle disc cooperates with the limit ring to control the position of the turntable driven by the angle disc, improving the stability of the turntable angle adjustment and preventing excessive movement. Further, through the cooperation of the connecting rod and the extrusion part assembled by the turntable, the position of the first clamping part is effectively controlled. Thus, the limit column nested by the lifting frame is controlled to form a through engagement and nested limit, avoiding the detachment of the support plate assembled by the limit column. Further, the position of the moving part is controlled by the belt assembled by the support plate. According to the width of the steel strip body, the distance between the high-speed cameras can be controlled, so as to form a detection on the upper side of the steel strip body. And in cooperation with the second clamping part on the moving part, the assembly stability of the high-speed cameras is improved, as well as the convenience of replacement when damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 FIG. is a schematic three-dimensional structure diagram of the conveying frame of the present invention; Figure 2 FIG. is a schematic three-dimensional semi-sectional structure diagram of the conveying frame of the present invention; Figure 3 FIG. is a schematic three-dimensional partial-sectional structure diagram of the conveying frame of the present invention; Figure 4 FIG. is a schematic three-dimensional semi-sectional structure diagram of the laser detector of the present invention; Figure 5 FIG. is a schematic three-dimensional partial-sectional structure diagram of the lifting frame of the present invention; Figure 6 FIG. is a schematic three-dimensional structure diagram of the extrusion part of the present invention; Figure 7 FIG. is a schematic three-dimensional right view structure diagram of the angle block of the present invention; Figure 8 FIG. is a schematic three-dimensional partial-sectional structure diagram of the support plate of the present invention; Figure 9 FIG. is a schematic three-dimensional structure diagram of the second clamping part of the present invention.

[0029] In the figure: 1, conveying frame; 2, conveying roller; 3, steel strip body; 4, support roller; 5, truss; 6, lifting frame; 7, straight tooth gear; 8, rack; 9, limit plate; 10, limit block; 11, laser detector; 12, detection head; 13, first telescopic rod; 14, first cylinder; 15, angle disc; 16, second telescopic rod; 17, second cylinder; 18, angle block; 19, limit ring; 20, turntable; 21, connecting rod; 22, extrusion part; 23, first clamping part; 24, limit column; 25, support plate; 26, belt; 27, moving part; 28, high-speed camera; 29, second clamping part; 30, extrusion spring; 31, unlocking part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1-9 , the present invention provides a technical solution: an automatic edge crack depth detection device for steel coil production, provided with a conveying frame 1 for steel coil conveying and detection, and a conveying roller 2 rotates on the inner surface of the conveying frame 1, and a steel strip body 3 is conveyed between the conveying rollers 2.

[0032] Embodiment 1: For the technical solution as Figures 1-4 shown, the present invention provides the following technical solution: an automatic edge crack depth detection device for steel coil production, which discloses: including: a support roller 4, rotating on the inner surface of the conveying frame 1, and a truss 5 slides on the outer surface of the conveying frame 1, and a lifting frame 6 is connected to the inner surface of the truss 5 in a lifting manner. At the same time, a spur gear 7 rotates on the lower middle side of the inner surface of the conveying frame 1, and a rack 8 is engaged with the outer surface of the spur gear 7, and a limit plate 9 is installed on the outer surface of the rack 8, and a limit block 10 is installed on the lower surface of the limit plate 9, and the limit block 10 is slidably limited on the lower side of the inner surface of the conveying frame 1. At the same time, the limit plate 9 is provided with a following detection mechanism; the conveying frame 1 and the rack 8 form an engagement structure through the spur gear 7, and the rack 8 is arranged at equal angles in the middle section of the inner surface of the spur gear 7, and the rack 8 is embedded and installed on the side of the outer surface of the limit plate 9. At the same time, the limit plate 9 and the conveying frame 1 form a limit sliding structure through the limit block 10; in the following detection mechanism, a laser detector 11 is slidably limited on the outer surface of the limit plate 9, and a detection head 12 is installed on the upper surface of the laser detector 11, and a first telescopic rod 13 is installed on the lower surface of the laser detector 11. At the same time, a first cylinder 14 is telescoped on the outer surface of the first telescopic rod 13, and the first cylinder 14 is installed on the lower surface of the limit plate 9; the limit plate 9 and the laser detector 11 form a limit sliding structure, and the laser detector 11 and the detection head 12 form an integral structure, and the laser detector 11 and the first cylinder 14 form a telescopic structure through the first telescopic rod 13.

[0033] When the steel strip body 3 of the steel coil is unwound on the conveying frame 1, the use of the conveying roller 2 will be coordinated to provide a clamping conveying force, effectively controlling the stability of the conveying of the steel strip body 3. And through the support of the support roller 4, the damage to the detection device caused by the steel strip body 3 falling is avoided. Then, the motor assembled on the lower side of the conveying frame 1 can be controlled to make the straight-tooth gear 7 rotate, which can engage with the limiting plate 9 on which the adjusting rack 8 is installed. Cooperating with the limiting block 10 installed on the limiting plate 9, it can stably form a limiting slide on the inner surface of the conveying frame 1, thereby controlling the centering adjustment of the limiting plate 9, and then controlling the steel strip body 3 to form a centered conveyance. And through the laser detector 11 installed on the side of the equally-angled limiting plate 9, and the multiple detection heads 12 assembled on the laser detector 11, the lower side crack of the steel strip body 3 is detected. And through the cylinder 14 assembled on the lower side of the limiting plate 9, the position of the telescopic rod 13 is controlled by telescopic movement, and the laser detector 11 installed on the telescopic rod 13 is controlled to form a limiting fine adjustment on the inner side of the upper surface of the limiting plate 9, improving the stability when detecting the side crack, and thus improving the detection range.

[0034] Embodiment 2: As Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7The technical solution shown, on the basis of the first embodiment, also discloses a limiting assembly of the support plate 25, and its specific contents are as follows: an angle disc 15 is rotated on the upper surface of the lifting frame 6, and the angle disc 15 is provided with an angle limiting mechanism; in the angle limiting mechanism, the upper surface of the angle disc 15 is provided with a telescopic rod 2 16 through eccentric rotation, and the outer surface of the telescopic rod 2 16 is telescopic with a cylinder 2 17, and the cylinder 2 17 is positioned and rotated to be connected to the upper surface of the lifting frame 6, and an angle block 18 is installed on the outer surface of the angle disc 15, and at the same time, the outer surface of the angle block 18 is limitedly fitted with a limiting ring 19, and the limiting ring 19 is nested in the outer surface of the angle disc 15; a turntable 20 is installed on the lower surface of the angle disc 15, and the turntable 20 is rotated on the inner surface of the lifting frame 6, and the outer surface of the turntable 20 is rotated with a connecting rod 21, and the outer surface of the connecting rod 21 is rotated with an extrusion The lifting frame 6 and the angle disc 15 form a rotating structure, and the angle disc 15 and the cylinder 17 form a telescopic rotating structure through the eccentric axis and the telescopic rod 16, and the angle disc 15 and the angle block 18 form an integrated structure, and the angle disc 15 and the limiting ring 19 form a limiting structure through the angle block 18; the angle disc 15 and the turntable 20 form a coaxial rotating structure through the rotating shaft, and the turntable 20 and the clamping member 23 form a circular linear mechanism through the connecting rod 21 and the extrusion member 22, and the clamping member 23 and the limiting column 24 form a through-fitting structure, and the limiting column 24 and the support plate 25 form an integrated structure.

[0035] Before the steel belt body 3 is conveyed, the position of the lifting frame 6 assembled with the control truss 5 is controlled, and the position of the telescopic rod 2 16 is controlled by the cylinder 2 17 on the lifting frame 6, and the eccentric axis assembled at the end of the telescopic rod 2 16 is controlled to rotate in the opposite direction, so as to cooperate with the angle block 18 installed on the angle plate 15, and effectively form a limit control under the nesting of the limit ring 19 to avoid excessive rotation of the angle plate 15, and when the angle plate 15 rotates, the coaxial control turntable 20 is reversed, and the turntable 20 is linked to control the connecting rod 21 to rotate and adjust the position of the extrusion member 22, thereby driving the extrusion member 2 2, the clamping piece 123 installed is separated from the nesting groove of the lifting frame 6, so that the limiting column 24 can be stably nested in the nesting groove of the lifting frame 6, and the cylinder 14 is started to control the telescopic rod 13 to rotate clockwise, so that the turntable 20 can be controlled to adjust the position of the clamping piece 123, and the clamping piece 123 can be stably penetrated through the through hole of the limiting column 24, so that the support plate 25 installed by the limiting column 24 can be limited and assembled, so as to facilitate the control of the use stability of the high-speed camera 28 assembled by the support plate 25, and the support plate 25 can be replaced, and different support plates 25 can be effectively assembled to install different detectors.

[0036] Example 3: As Figure 1 , Figure 2 , Figure 8 and Figure 9 shown in the technical solution, on the basis of Example 2, the assembly replacement of the high-speed camera 28 is also disclosed, and the specific content is as follows: A belt 26 is rotatably arranged on the inner surface of the support plate 25, and a moving member 27 is installed on the outer surface of the belt 26, and the moving member 27 is limited to slide on the inner surface of the support plate 25. A high-speed camera 28 is nested and connected to the inner surface of the moving member 27. At the same time, a second engaging member 29 is snap-connected to the inner surface of the high-speed camera 28, and the second engaging member 29 is limited to rotate on the inner surface of the moving member 27. An extrusion spring 30 is elastically connected between the second engaging member 29 and the moving member 27. The tail end of the outer surface of the second engaging member 29 is in fit connection with an unlocking member 31, and the unlocking member 31 is limited to slide in the side wall of the moving member 27; the support plate 25 and the moving member 27 form a sliding structure through the belt 26, and the moving members 27 are arranged at equal angles with respect to the central axis of the inner surface of the support plate 25, and the moving member 27 and the high-speed camera 28 form a nested structure; the moving member 27 and the high-speed camera 28 form a limiting snap-fit structure through the second engaging member 29, and the second engaging member 29 and the moving member 27 form a positioning rotation structure, and the second engaging member 29 and the moving member 27 form an elastic structure through the extrusion spring 30. At the same time, the moving member 27 and the unlocking member 31 form a sliding structure, and the unlocking member 31 and the second engaging member 29 form an extrusion structure.

[0037] When the high-speed camera 28 is performing detection work, the motor assembled on the upper side of the support plate 25 will stably control the belt 26 and the assembled moving member 27, follow the width of the steel belt body 3, control the position of the moving member 27, and use the high-speed camera 28 assembled on the moving member 27 to form detection of the steel belt body 3. When the high-speed camera 28 is damaged, the unlocking member 31 assembled on the moving member 27 will be controlled to slide inward, and the second engaging member 29 will be squeezed to form positioning rotation, and the extrusion spring 30 connected to the second engaging member 29 will be controlled to contract, and the engaging end of the second engaging member 29 will be controlled to disengage from the inner surface of the high-speed camera 28, so as to detach the damaged high-speed camera 28, release the unlocking member 31, and a new high-speed camera 28 can be directly nested and assembled to form automatic snap-fitting for subsequent work use.

[0038] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic detection device for edge crack depth for steel coil production, comprising a conveyor frame (1) for conveying and detecting steel coils, wherein conveyor rollers (2) are rotated on the inner surface of the conveyor frame (1), and a steel strip body (3) is conveyed between the conveyor rollers (2); It is characterized in that include: A support roller (4) is rotated on the inner surface of the conveying frame (1), and a truss (5) is slid on the outer surface of the conveying frame (1), and the inner surface of the truss (5) is lifted and connected to a lifting frame (6), and a spur gear (7) is rotated on the lower side of the inner surface of the conveying frame (1), and the outer surface of the spur gear (7) is meshed and connected to a rack (8), and a limit plate (9) is installed on the outer surface of the rack (8), and a limit block (10) is installed on the lower surface of the limit plate (9), and the limit block (10) is limitedly slid on the lower side of the inner surface of the conveying frame (1), and the limit plate (9) is provided with a follow-up detection mechanism; The angle plate (15) is rotated on the upper surface of the lifting frame (6), and the angle plate (15) is provided with an angle limiting mechanism.

2. The automatic detection device for edge crack depth of steel coil production according to claim 1 is characterized in that: The conveying frame (1) forms a meshing structure with a spur gear (7) and a rack (8), and the rack (8) is arranged at an equal angle with respect to the middle section of the inner surface of the spur gear (7), and the rack (8) is embedded and installed on the side edge of the outer surface of the limiting plate (9), and the limiting plate (9) forms a limiting sliding structure with the conveying frame (1) through a limiting block (10).

3. The automatic detection device for edge crack depth of steel coil production according to claim 1 is characterized in that: The outer surface of the limit plate (9) in the following detection mechanism is provided with a laser detector (11) for limiting sliding, and the upper surface of the laser detector (11) is provided with a detection head (12), and the lower surface of the laser detector (11) is provided with a telescopic rod (13), and the outer surface of the telescopic rod (13) is provided with a cylinder (14) for telescoping, and the cylinder (14) is provided on the lower surface of the limit plate (9).

4. The automatic detection device for edge crack depth of steel coil production according to claim 1 is characterized in that: The limit plate (9) and the laser detector (11) form a limit sliding structure, and the laser detector (11) and the detection head (12) form an integrated structure, and the laser detector (11) forms a telescopic structure through a telescopic rod (13) and a cylinder (14).

5. The automatic detection device for edge crack depth of steel coil production according to claim 1 is characterized in that: The upper surface of the angle plate (15) in the angle limiting mechanism is provided with a telescopic rod (16) through eccentric rotation, and a cylinder (17) is provided on the outer surface of the telescopic rod (16) to be telescopic, and the cylinder (17) is connected to the upper surface of the lifting frame (6) by positioning and rotating, and an angle block (18) is installed on the outer surface of the angle plate (15), and the outer surface of the angle block (18) is limitedly fitted with a limiting ring (19), and the limiting ring (19) is nested in the outer surface of the angle plate (15); the lower surface of the angle plate (15) is provided with a A turntable (20) is installed, and the turntable (20) is rotated on the inner surface of the lifting frame (6), and a connecting rod (21) is rotated on the outer surface of the turntable (20), and an extrusion piece (22) is rotated on the side of the outer surface of the connecting rod (21), and a clamping piece (23) is installed on the outer surface of the extrusion piece (22), and the outer surface of the clamping piece (23) is penetrated and connected with a limiting column (24), and the limiting column (24) is limitedly nested in the inner surface of the lifting frame (6), and a support plate (25) is installed on the lower surface of the limiting column (24).

6. The automatic detection device for edge crack depth of steel coil production according to claim 1 is characterized in that: The lifting frame (6) and the angle plate (15) form a rotating structure, and the angle plate (15) forms a telescopic rotating structure through an eccentric shaft and a second telescopic rod (16) and a second cylinder (17), and the angle plate (15) and the angle block (18) form an integrated structure, and the angle plate (15) forms a limiting structure through the angle block (18) and the limiting ring (19).

7. The automatic detection device for edge crack depth of steel coil production according to claim 1 is characterized in that: The angle disc (15) forms a coaxial rotation structure with the rotating disc (20) through a rotating shaft, and the rotating disc (20) forms a circular linear mechanism with a clamping piece (23) through a connecting rod (21) and an extrusion piece (22), and the clamping piece (23) and the limiting column (24) form a through-fitting structure, while the limiting column (24) and the support plate (25) form an integrated structure.

8. The automatic detection device for edge crack depth of steel coil production according to claim 5, characterized in that: A belt (26) is rotatably mounted on the inner surface of the support plate (25), and a moving member (27) is mounted on the outer surface of the belt (26), and the moving member (27) is limitedly slid on the inner surface of the support plate (25), and a high-speed camera (28) is nested and connected to the inner surface of the moving member (27), and a second clamping member (29) is engaged and connected to the inner surface of the high-speed camera (28), and the second clamping member (29) is limitedly rotatably mounted on the inner surface of the moving member (27), and an extrusion spring (30) is elastically connected between the second clamping member (29) and the moving member (27), and an unlocking member (31) is attached and connected to the rear end of the outer surface of the second clamping member (29), and the unlocking member (31) is limitedly slid inside the side wall of the moving member (27).

9. The automatic detection device for edge crack depth of steel coil production according to claim 8, characterized in that: The support plate (25) forms a sliding structure with a moving member (27) via a belt (26), and the moving member (27) is arranged at equal angles with respect to the central axis of the inner surface of the support plate (25), and the moving member (27) and the high-speed camera (28) form a nested structure.

10. The automatic detection device for edge crack depth of steel coil production according to claim 8, characterized in that: The movable member (27) forms a position-limiting engaging structure with the high-speed camera (28) through the second clamping member (29), and the second clamping member (29) and the movable member (27) form a positioning rotation structure, and the second clamping member (29) and the movable member (27) form an elastic structure through the extrusion spring (30), while the movable member (27) and the unlocking member (31) form a sliding structure, and the unlocking member (31) and the second clamping member (29) form an extrusion structure.

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