Roller surface defect detection equipment

Abstract

The utility model relates to the technical field of detection, and discloses roller surface defect detection equipment which comprises a mounting frame used for providing a mounting position, a conveying mechanism located in the mounting frame and used for conveying rollers, and two mounting frames located at the top of the mounting frame and used for providing the mounting position and meanwhile having a certain dust blocking effect. The detection precision improving mechanism is located outside the mounting frame and used for cleaning the surface of the roller and improving the detection precision, the roller overturning mechanism is located outside the mounting frame and used for achieving overturning of the roller, and the pressure stabilizing mechanism is located outside the detection precision improving mechanism and used for balancing pressure. The surface of the roller is cleaned by using the detection precision improving mechanism before detection, so that dust can be blown off from the roller and sucked away, the dust cannot be attached to the outer surface of the roller, the dust is prevented from influencing a detection result, and the detection precision can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, in particular to a roller surface defect detection device. Background Art

[0002] Rollers are key components in rolling mills, applying pressure to plastically deform metal materials. They typically consist of a roll body, roll neck, and shaft head. The roll neck is mounted in bearings, transmitting the rolling force through bearing seats and a screw-down mechanism. Roller properties such as material, hardness, wear resistance, and heat treatment have a significant impact on the efficiency of the rolling process and the quality of the final product.

[0003] Roll surface defect detection is a crucial process for ensuring the quality of rolled products and extending the service life of the rolls. With the advancement of technology, a variety of detection methods have been applied to the detection of roll surface defects, including visual inspection, non-destructive testing technology, and digital image processing technology.

[0004] The defect detection equipment in the prior art does not have a surface cleaning mechanism, but dust falls on the outer surface of the roller without cleaning. When performing outer surface defect detection, the dust easily causes detection interference, thereby causing inaccurate detection results. Utility Model Content

[0005] In response to the deficiencies of the prior art, the utility model provides a roller surface defect detection device, which solves the problem that the defect detection device in the prior art does not have a surface cleaning mechanism, resulting in dust falling on the outer surface of the roller and causing inaccurate detection results.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a roller surface defect detection device, comprising:

[0007] A mounting frame, used to provide a mounting location;

[0008] The conveying mechanism is located inside the mounting frame and is used to convey the rolls;

[0009] Two mounting frames are located on the top of the mounting frame, which are used to provide a mounting location and also have a certain dust blocking effect;

[0010] The detection accuracy improvement mechanism is located outside the mounting frame and is used to clean the roller surface to improve detection accuracy;

[0011] The roll turning mechanism is located outside the mounting frame and is used to turn the roll;

[0012] The pressure stabilizing mechanism is located outside the detection accuracy improving mechanism and is used to balance the pressure;

[0013] The detection camera is located on the inner top of the installation frame and is used to detect the surface of the roller.

[0014] Preferably, the conveying mechanism is arranged inside the mounting frame, the bottoms of the two mounting frames are fixedly connected to the two ends of the top of the mounting frame, the detection accuracy improvement mechanism is arranged outside the mounting frame, the roller flipping mechanism is arranged outside the mounting frame, one end of the pressure stabilizing mechanism is arranged outside the detection accuracy improvement mechanism, and the top of the detection camera is fixedly connected to the internal top of the mounting frame.

[0015] Preferably, the transmission mechanism includes two driving shafts, both ends of the driving shafts are rotatably connected to the inner side of the mounting frame, the inner side of the mounting frame is rotatably connected to two driven shafts, a conveyor belt is sleeved between the driving shaft and the driven shaft, and a motor is fixedly connected to one end of the bottom of the mounting frame, a belt one is sleeved between the output end of the motor and one of the driving shafts, and a belt two is sleeved between the two driving shafts.

[0016] The cam is connected with the piston rod of the piston rod and the piston rod and the piston rod are connected with the piston rod of the piston rod in a rotating manner. The cam is connected with the piston rod of the piston rod and the piston rod is connected with the piston rod of the piston rod.

[0017] Preferably, the dust collection assembly includes a dust box, the top of the dust box is fixedly connected to the bottom of the mounting bracket, one side of the dust box is fixedly connected to an air outlet pipe, one end of the air outlet pipe away from the dust box is fixedly connected to the bottom of the one-way valve 2, the bottom of the dust box is fixedly connected to a three-way connecting pipe, both ends of the three-way connecting pipe are fixedly connected to an air inlet pipe, one end of the air inlet pipe away from the dust box is fixedly connected to a dust collection head, one end of the dust box away from the air outlet pipe is fixedly connected to a dust exhaust pipe, and one end of the dust exhaust pipe away from the dust box is threadedly connected to a threaded sealing cover.

[0018] Preferably, the rolling roller flipping mechanism includes a mounting shaft, both ends of the mounting shaft are rotatably connected to the middle of the mounting frame, the outside of the mounting shaft is fixedly connected to a mounting sleeve, the outside of the mounting sleeve is fixedly connected to a plurality of clamping plates, one end of the mounting shaft is fixedly connected to an eccentric disk, the outside of the eccentric disk is rotatably connected to a push connecting rod, the end of the push connecting rod away from the eccentric disk is rotatably connected to a push rod, and the end of the push rod away from the eccentric disk is fixedly connected to the middle of the piston.

[0019] Preferably, the pressure stabilizing mechanism includes a fixed tube, the side of the fixed tube close to the mounting frame is fixedly connected to the outside of the air pressure box, the end of the fixed tube away from the air pressure box is fixedly connected to a limiting ring, the outside of the limiting ring is slidably connected to a movable shell, the outside of the movable shell is provided with a plurality of air holes, and the outside of the fixed tube is provided with a pressure tension spring.

[0020] Preferably, one end of the pressure spring is fixedly connected to a side of the movable housing away from the air pressure box, and the other end of the pressure spring is fixedly connected to the outside of the air pressure box.

[0021] Preferably, both ends of the bottom of the mounting frame are fixedly connected to support frames, and a fitting groove is provided in the middle of the mounting frame.

[0022] Preferably, the dust collection head is fixedly connected to the inside of one side of the installation frame, and the top of the air blowing head is fixedly connected to the inner top of the installation frame.

[0023] Working principle: When conducting the inspection, first start the motor. After the output end of the motor rotates, one of the driving shafts can be rotated, and the other driving shaft can be driven to rotate through the second belt. When the driving shaft rotates, it can cooperate with the driven shaft to drive the conveyor belt to rotate, so that the items can be transported. When the driving shaft rotates, it can drive the eccentric wheel to rotate. When the eccentric wheel rotates, it can drive one end of the connecting rod to rotate. After one end of the connecting rod rotates, it can drive the other end of the connecting rod to move back and forth. When the other end of the connecting rod moves back and forth, it can drive the push-pull rod to move back and forth. The push-pull rod drives the piston to move back and forth, and the piston moves toward the eccentric wheel. When the wheel moves in the direction of rotation, the one-way valve 1 is closed and the one-way valve 2 is opened, so that the air in the dust box can be sucked away through the air outlet pipe. When pressure is generated inside the dust box, suction is generated and transmitted to the dust collection head through the air inlet pipe, and the suction area is expanded through the dust collection head, so that the dust can be sucked away. When the piston moves to the side away from the eccentric wheel, the one-way valve 2 is closed and the one-way valve 1 is opened, and the air can be sent into the interior of the air pressure box through the ventilation pipe, and then the air is transmitted to the interior of the blowing head through the three-way pipe through the blowing pipe, and then the air can be sprayed out, and the dust on the surface of the roller is blown away by the sprayed air, so that the surface of the roller can be kept clean.

[0024] When the piston moves back and forth, it can drive the push rod to move back and forth. When the push rod moves back and forth, it can drive the push connecting rod to move back and forth. After the push connecting rod moves back and forth, it drives the eccentric disk to rotate, thereby driving the installation shaft to rotate. After the installation shaft rotates, it drives the installation sleeve to rotate. After the installation sleeve rotates, it drives the clamping plate to rotate, thereby transporting the roller transferred to the middle of the installation frame to between the two clamping plates. The rotation of the clamping plate drives the roller to turn over, thereby achieving comprehensive cleaning and also enabling comprehensive external inspection.

[0025] When the air pressure inside the air pressure box is too high, the movable shell will be pushed outward under the influence of the air pressure and the pressure tension spring will be stretched. When the air hole moves to the front side of the limit ring, the air inside the air pressure box is released, thereby preventing the air pressure inside the air pressure box from being too high. When the pressure decreases, the movable shell will be pulled in the opposite direction under the action of the pressure tension spring, thereby preventing the air inside the air pressure box from being released again.

[0026] The utility model provides a roller surface defect detection device with the following beneficial effects:

[0027] 1. The utility model uses a detection accuracy improvement mechanism to clean the roller surface before detection, so that dust can be blown off the roller and sucked away, thereby preventing dust from adhering to the outer surface of the roller and avoiding dust from affecting the detection results, thereby improving the detection accuracy.

[0028] 2. The utility model can automatically flip the roller through the roller flipping mechanism, so that the outer surface of the roller can be automatically fully inspected without manual flipping, thus saving time and effort, improving the inspection efficiency, and reducing the work efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional diagram of the utility model;

[0030] Figure 2 This is a schematic diagram of the mechanism of the electric motor in the present utility model;

[0031] Figure 3 This is a schematic structural diagram of the piston in the utility model;

[0032] Figure 4 This is a schematic diagram of the structure of the plywood in the utility model;

[0033] Figure 5 This is a schematic structural diagram of the air blowing head in the utility model;

[0034] Figure 6This is a schematic structural diagram of the air intake pipe in the present invention;

[0035] Figure 7 This is a schematic structural diagram of the limiting ring in the utility model;

[0036] Figure 8 It is a structural schematic diagram of the fitting groove in the utility model.

[0037] Among them, 1. Mounting frame; 2. Transmission mechanism; 201. Active shaft; 202. Driven shaft; 203. Conveyor belt; 204. Motor; 3. Mounting frame; 4. Detection accuracy improvement mechanism; 401. Air cylinder; 402. Piston; 403. Push-pull rod; 404. Connecting rod; 405. Eccentric wheel; 406. One-way valve 1; 407. One-way valve 2; 408. Air pressure box; 409. T-tube; 410. Air blowing pipe; 411. Air blowing head; 412. Ventilation pipe; 413. Dust collection box; 414. Air outlet Tube; 415, three-way connecting pipe; 416, air inlet pipe; 417, dust suction head; 418, dust exhaust pipe; 419, threaded sealing cover; 5, roller turning mechanism; 501, mounting shaft; 502, mounting sleeve; 503, splint; 504, eccentric disk; 505, push connecting rod; 506, push rod; 6, pressure stabilizing mechanism; 601, fixed tube; 602, limit ring; 603, movable shell; 604, air hole; 605, pressure tension spring; 7, detection camera; 8, support frame; 9, fitting groove. DETAILED DESCRIPTION

[0038] 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 embodiments described 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 technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Example:

[0040] Please see the attached Figure 1 -Attached Figure 8The embodiment of the present invention provides a roller surface defect detection device, including a mounting frame 1 for providing a mounting position, a conveying mechanism 2 located inside the mounting frame 1 for conveying the roller, two mounting frames 3 located on the top of the mounting frame 1 for providing a mounting position and having a certain dust blocking effect, a detection accuracy improvement mechanism 4 located outside the mounting frame 1 for cleaning the roller surface and improving the detection accuracy, a roller flipping mechanism 5 located outside the mounting frame 1 for realizing the flipping of the roller, a pressure stabilizing mechanism 6 located outside the detection accuracy improvement mechanism 4 for balancing the pressure, and a detection camera 7 located inside the mounting frame 3. The top is used to detect the surface of the roller. The conveying mechanism 2 is arranged inside the mounting frame 1. The bottoms of the two mounting frames 3 are fixedly connected to the two ends of the top of the mounting frame 1. The detection accuracy improvement mechanism 4 is arranged outside the mounting frame 1. The roller turning mechanism 5 is arranged outside the mounting frame 1. One end of the pressure stabilizing mechanism 6 is arranged outside the detection accuracy improvement mechanism 4. The top of the detection camera 7 is fixedly connected to the internal top of the mounting frame 3. The two ends of the bottom of the mounting frame 1 are fixedly connected to the support frame 8. The middle of the mounting frame 1 is provided with a fitting groove 9. The fitting groove 9 can prevent the roller turning mechanism from interfering with the mounting frame 1 when rotating.

[0041] The transmission mechanism 2 includes two driving shafts 201, both ends of the driving shaft 201 are rotatably connected between the inner sides of the mounting frame 1, and the inner sides of the mounting frame 1 are rotatably connected to two driven shafts 202. A conveyor belt 203 is sleeved between the driving shaft 201 and the driven shaft 202. The conveyor belt 203 can be installed and supported by the cooperation of the driving shaft 201 and the driven shaft 202. A motor 204 is fixedly connected to one end of the bottom of the mounting frame 1. The motor 204 can provide power. A belt 1 is sleeved between the output end of the motor 204 and one of the driving shafts 201, and a belt 2 is sleeved between the two driving shafts 201. The motor 204 is started, and after the output end of the motor 204 rotates, one of the driving shafts 201 can be rotated, and the other driving shaft 201 can be driven to rotate through the belt 2. When the driving shaft 201 rotates, it can cooperate with the driven shaft 202 to drive the conveyor belt 203 to rotate, thereby transporting items.

[0042] The detection accuracy improvement mechanism 4 includes an air cylinder 401, which can provide basic conditions. The outside of the air cylinder 401 is fixedly connected to the outside side of the mounting bracket 1, and the inside of the air cylinder 401 is slidably connected to a piston 402. The side of the piston 402 close to the motor 204 is fixedly connected to a push-pull rod 403, and the push-pull rod 403 can drive the piston 402 to move back and forth. The push-pull rod 403 is rotatably connected to a connecting rod 404 on the side away from the piston 402, and the connecting rod 404 is rotatably connected to an eccentric wheel 405 on the side away from the piston 402. The side of the eccentric wheel 405 close to the mounting bracket 1 is fixedly connected to one end of one of the active shafts 201, and the outside of the air cylinder 401 is fixedly connected to a one-way valve 406. The outside of the air cylinder 401 is away from the one-way valve 406. One side of 6 is fixedly connected with a one-way valve 2 407, and the one-way valve 1 406 and the one-way valve 2 407 can be used for one-way inflow and outflow of gas. The bottom of the mounting frame 1 is fixedly connected with an air pressure box 408, and the air pressure box 408 can store air. The bottom of the air pressure box 408 is fixedly connected with a three-way pipe 409, and the three-way pipe 409 can play a connecting role. Both ends of the three-way pipe 409 are fixedly connected with a blowing pipe 410, and the blowing pipe 410 can play a connecting role. The end of the blowing pipe 410 away from the three-way pipe 409 is fixedly connected to a blowing head 411, and the blowing head 411 can discharge gas. The outside of the air pressure box 408 is fixedly connected with a vent pipe 412, and the vent pipe 412 can play a connecting role. The vent pipe 412 is fixedly connected to one side of the air pressure box 408 At the top of the one-way valve 406, the bottom of the mounting frame 1 is fixedly connected to a dust collection assembly including a dust box 413, which can collect dust, and the top of the dust box 413 is fixedly connected to the bottom of the mounting frame 1, and one side of the dust box 413 is fixedly connected to an air outlet pipe 414, which can serve as a connection, and one end of the air outlet pipe 414 away from the dust box 413 is fixedly connected to the bottom of the one-way valve 407, and the bottom of the dust box 413 is fixedly connected to a three-way connecting pipe 415, which can connect three objects, and both ends of the three-way connecting pipe 415 are fixedly connected to an air inlet pipe 416, which can suck in dust, and one end of the air inlet pipe 416 away from the dust box 413 is fixedly connected to a dust collection head 417, the dust collection head 417 can expand the dust collection area, the dust box 413 is fixedly connected to the end away from the air outlet pipe 414 with a dust exhaust pipe 418, the dust exhaust pipe 418 can facilitate the discharge of dust, the dust exhaust pipe 418 is threadedly connected to the end away from the dust box 413 with a threaded sealing cover 419, the threaded sealing cover 419 can block the dust exhaust pipe 418, the dust collection head 417 is fixedly connected to the inside of one side of the mounting frame 3, the top of the air blowing head 411 is fixedly connected to the inner top of the mounting frame 3, when the driving shaft 201 rotates, it can drive the eccentric wheel 405 to rotate, when the eccentric wheel 405 rotates, it can drive one end of the connecting rod 404 to rotate, and after one end of the connecting rod 404 rotates, it can drive the other end of the connecting rod 404 to move back and forth.When the other end of the connecting rod 404 moves back and forth, it can drive the push-pull rod 403 to move back and forth, and the push-pull rod 403 drives the piston 402 to move back and forth. When the piston 402 moves toward the direction of the eccentric wheel 405, the one-way valve 1 406 is closed and the one-way valve 2 407 is opened, so that the air in the dust box 413 can be drawn away through the air outlet pipe 414. When pressure is generated inside the dust box 413, suction is generated and transmitted to the dust collector head 417 through the air inlet pipe 416, and then The suction head 417 expands the suction area, thereby sucking away dust. When the piston 402 moves away from the eccentric wheel 405, the second check valve 407 closes and the first check valve 406 opens, allowing air to be sent into the air pressure box 408 through the vent pipe 412. The air is then transmitted through the three-way pipe 409 and the air is transmitted to the interior of the blowing head 411 through the air blowing pipe 410. The air is then ejected and the dust on the roller surface is blown away, thereby keeping the roller surface clean.

[0043] The roller turning mechanism 5 includes a mounting shaft 501, both ends of which are rotatably connected to the middle of the mounting frame 1, a mounting sleeve 502 is fixedly connected to the outside of the mounting shaft 501, a plurality of clamping plates 503 are fixedly connected to the outside of the mounting sleeve 502, one end of the mounting shaft 501 is fixedly connected to the eccentric disk 504, the outside of the eccentric disk 504 is rotatably connected to a push connecting rod 505, the end of the push connecting rod 505 away from the eccentric disk 504 is rotatably connected to a push rod 506, the end of the push rod 506 away from the eccentric disk 504 is fixedly connected to the middle of the piston 402, and the piston 402 can drive the push rod when it moves back and forth 506 moves back and forth, and when the push rod 506 moves back and forth, it can drive the connecting rod 505 to move back and forth. After the connecting rod 505 moves back and forth, it drives the eccentric disk 504 to rotate, thereby driving the installation shaft 501 to rotate. After the installation shaft 501 rotates, it can drive the installation sleeve 502 to rotate. After the installation sleeve 502 rotates, it can drive the splint 503 to rotate, so that the roller transferred to the middle of the mounting frame 1 can be transported between the two splints 503, and then the splint 503 rotates to drive the roller to turn over, thereby achieving comprehensive cleaning and also enabling comprehensive external inspection.

[0044] The pressure stabilizing mechanism 6 includes a fixed tube 601, which can be used for exhaust. The side of the fixed tube 601 close to the mounting bracket 1 is fixedly connected to the outside of the air pressure box 408. The end of the fixed tube 601 away from the air pressure box 408 is fixedly connected to the limit ring 602. The limit ring 602 can play a limiting role. The outside of the limit ring 602 is slidably connected to a movable shell 603. The outside of the movable shell 603 is provided with a plurality of air holes 604. The air holes 604 can be used for degassing. The outside of the fixed tube 601 is provided with a pressure spring 605. The pressure spring 605 can use the reaction force to reset the movable shell 603. One end of the pressure spring 605 It is fixedly connected to the side of the mobile housing 603 away from the air pressure box 408, and the other end of the pressure spring 605 is fixedly connected to the outside of the air pressure box 408. When the air pressure inside the air pressure box 408 is too high, the mobile housing 603 will be pushed to move outward under the influence of the air pressure, and the pressure spring 605 will be stretched. When the air hole 604 moves to the front side of the limit ring 602, the air inside the air pressure box 408 is released, which can prevent the air pressure inside the air pressure box 408 from being too high. When the pressure is reduced, the mobile housing 603 is pulled in the opposite direction under the action of the pressure spring 605, which can prevent the internal air of the air pressure box 408 from being released again.

[0045] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roller surface defect detection device, characterized in that: include: A mounting frame (1) for providing a mounting location; The conveying mechanism (2) is located inside the mounting frame (1) and is used to convey the rollers; Two mounting frames (3) are located on the top of the mounting frame (1) and are used to provide a mounting location and have a certain dust blocking effect; The detection accuracy improvement mechanism (4) is located outside the mounting frame (1) and is used to clean the surface of the roller to improve the detection accuracy; The roller turning mechanism (5) is located outside the mounting frame (1) and is used to turn the roller; The pressure stabilizing mechanism (6) is located outside the detection accuracy improving mechanism (4) and is used to balance the pressure; The detection camera (7) is located at the top inner side of the mounting frame (3) and is used to detect the surface of the roller.

2. The roller surface defect detection device according to claim 1, characterized in that: The transmission mechanism (2) is arranged inside the mounting frame (1), the bottoms of the two mounting frames (3) are fixedly connected to the two ends of the top of the mounting frame (1), the detection accuracy improvement mechanism (4) is arranged outside the mounting frame (1), the roller turning mechanism (5) is arranged outside the mounting frame (1), one end of the pressure stabilization mechanism (6) is arranged outside the detection accuracy improvement mechanism (4), and the top of the detection camera (7) is fixedly connected to the top of the inside of the mounting frame (3).

3. The roller surface defect detection device according to claim 2, characterized in that: The transmission mechanism (2) comprises two driving shafts (201), both ends of the driving shafts (201) are rotatably connected to the inner side of the mounting frame (1), the inner side of the mounting frame (1) is rotatably connected to two driven shafts (202), a conveyor belt (203) is sleeved between the driving shafts (201) and the driven shafts (202), a motor (204) is fixedly connected to one end of the bottom of the mounting frame (1), a belt 1 is sleeved between the output end of the motor (204) and one of the driving shafts (201), and a belt 2 is sleeved between the two driving shafts (201).

4. The roller surface defect detection device according to claim 1, characterized in that: The detection accuracy improvement mechanism (4) includes an air cylinder (401), the outside of the air cylinder (401) is fixedly connected to the outside side of the mounting frame (1), the inside of the air cylinder (401) is slidably connected to a piston (402), the side of the piston (402) close to the motor (204) is fixedly connected to a push-pull rod (403), the side of the push-pull rod (403) away from the piston (402) is rotatably connected to a connecting rod (404), the side of the connecting rod (404) away from the piston (402) is rotatably connected to an eccentric wheel (405), the side of the eccentric wheel (405) close to the mounting frame (1) is fixedly connected to one end of one of the driving shafts (201), the outside of the air cylinder (401) is fixedly connected to a one-way valve (405). 6), the side of the outside of the air cylinder (401) away from the one-way valve (406) is fixedly connected to the one-way valve (407), the bottom of the mounting frame (1) is fixedly connected to the air pressure box (408), the bottom of the air pressure box (408) is fixedly connected to the three-way pipe (409), both ends of the three-way pipe (409) are fixedly connected to the blowing pipe (410), the end of the blowing pipe (410) away from the three-way pipe (409) is fixedly connected to the blowing head (411), the outside of the air pressure box (408) is fixedly connected to the ventilation pipe (412), the side of the ventilation pipe (412) away from the air pressure box (408) is fixedly connected to the top of the one-way valve (406), and the bottom of the mounting frame (1) is fixedly connected to the dust collection component.

5. The roller surface defect detection device according to claim 4, characterized in that: The dust collection assembly comprises a dust box (413), the top of the dust box (413) is fixedly connected to the bottom of the mounting frame (1), one side of the dust box (413) is fixedly connected to an air outlet pipe (414), one end of the air outlet pipe (414) away from the dust box (413) is fixedly connected to the bottom of the second one-way valve (407), the bottom of the dust box (413) is fixedly connected to a three-way connecting pipe (415), both ends of the three-way connecting pipe (415) are fixedly connected to an air inlet pipe (416), one end of the air inlet pipe (416) away from the dust box (413) is fixedly connected to a dust collection head (417), one end of the dust box (413) away from the air outlet pipe (414) is fixedly connected to a dust exhaust pipe (418), and one end of the dust exhaust pipe (418) away from the dust box (413) is threadedly connected to a threaded sealing cover (419).

6. The roller surface defect detection device according to claim 1, characterized in that: The roller turning mechanism (5) comprises a mounting shaft (501), both ends of the mounting shaft (501) are rotatably connected to the middle of the mounting frame (1), the outside of the mounting shaft (501) is fixedly connected to a mounting sleeve (502), the outside of the mounting sleeve (502) is fixedly connected to a plurality of clamping plates (503), one end of the mounting shaft (501) is fixedly connected to an eccentric disk (504), the outside of the eccentric disk (504) is rotatably connected to a push connecting rod (505), the end of the push connecting rod (505) away from the eccentric disk (504) is rotatably connected to a push rod (506), and the end of the push rod (506) away from the eccentric disk (504) is fixedly connected to the middle of the piston (402).

7. The roller surface defect detection device according to claim 1, characterized in that: The pressure stabilizing mechanism (6) comprises a fixed tube (601), wherein a side of the fixed tube (601) close to the mounting frame (1) is fixedly connected to the outside of the air pressure box (408), and an end of the fixed tube (601) away from the air pressure box (408) is fixedly connected to a limit ring (602), and the outside of the limit ring (602) is slidably connected to a movable shell (603), and a plurality of air holes (604) are provided on the outside of the movable shell (603), and a pressure tension spring (605) is sleeved on the outside of the fixed tube (601).

8. The roller surface defect detection device according to claim 7, characterized in that: One end of the pressure spring (605) is fixedly connected to a side of the movable housing (603) away from the air pressure box (408), and the other end of the pressure spring (605) is fixedly connected to the outside of the air pressure box (408).

9. The roller surface defect detection device according to claim 1, characterized in that: Both ends of the bottom of the mounting frame (1) are fixedly connected to support frames (8), and a fitting groove (9) is provided in the middle of the mounting frame (1).

10. The roller surface defect detection device according to claim 5, characterized in that: The dust collecting head (417) is fixedly connected to the inside of one side of the installation frame (3), and the top of the air blowing head (411) is fixedly connected to the top of the inner side of the installation frame (3).

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